refactor tests

accounts/src/account_core/mod.rs

@@ -117,7 +117,7 @@ impl AccountPublicMask {
 impl Account {
     pub fn new() -> Self {
         let key_holder = AddressKeyHolder::new_os_random();
-        let public_key = nssa::PublicKey::new(key_holder.get_pub_account_signing_key());
+        let public_key = nssa::PublicKey::new_from_private_key(key_holder.get_pub_account_signing_key());
         let address = nssa::Address::from_public_key(&public_key);
         let balance = 0;
         let utxos = HashMap::new();
@@ -132,7 +132,7 @@ impl Account {
 
     pub fn new_with_balance(balance: u64) -> Self {
         let key_holder = AddressKeyHolder::new_os_random();
-        let public_key = nssa::PublicKey::new(key_holder.get_pub_account_signing_key());
+        let public_key = nssa::PublicKey::new_from_private_key(key_holder.get_pub_account_signing_key());
         let address = nssa::Address::from_public_key(&public_key);
         let utxos = HashMap::new();
 

accounts/src/key_management/mod.rs

@@ -341,7 +341,7 @@ mod tests {
             }
         };
 
-        let public_key = nssa::PublicKey::new(&pub_account_signing_key);
+        let public_key = nssa::PublicKey::new_from_private_key(&pub_account_signing_key);
 
         let address = nssa::Address::from_public_key(&public_key);
 

nssa/src/address.rs

@@ -4,7 +4,7 @@ use crate::signature::PublicKey;
 
 #[derive(Debug, Clone, Hash, PartialEq, Eq, Serialize, Deserialize)]
 pub struct Address {
-    pub(crate) value: [u8; 32],
+    value: [u8; 32],
 }
 
 impl Address {
@@ -14,7 +14,7 @@ impl Address {
 
     pub fn from_public_key(public_key: &PublicKey) -> Self {
         // TODO: Check specs
-        Address::new(public_key.0)
+        Address::new(*public_key.value())
     }
 
     pub fn value(&self) -> &[u8; 32] {

nssa/src/error.rs

@@ -21,4 +21,7 @@ pub enum NssaError {
 
     #[error("IO error: {0}")]
     Io(#[from] io::Error),
+
+    #[error("Invalid Public Key")]
+    InvalidPublicKey,
 }

nssa/src/lib.rs

@@ -12,5 +12,3 @@ pub use signature::PublicKey;
 pub use signature::Signature;
 pub use state::V01State;
 
-#[cfg(test)]
-mod tests;

nssa/src/program.rs

@@ -10,8 +10,8 @@ use crate::error::NssaError;
 
 #[derive(Debug, PartialEq, Eq)]
 pub struct Program {
-    pub(crate) id: ProgramId,
+    id: ProgramId,
-    pub(crate) elf: &'static [u8],
+    elf: &'static [u8],
 }
 
 impl Program {
@@ -77,3 +77,130 @@ impl Program {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use nssa_core::account::{Account, AccountWithMetadata};
+
+    use crate::program::Program;
+
+    impl Program {
+        /// A program that changes the nonce of an account
+        pub fn nonce_changer_program() -> Self {
+            use test_program_methods::{NONCE_CHANGER_ELF, NONCE_CHANGER_ID};
+
+            Program {
+                id: NONCE_CHANGER_ID,
+                elf: NONCE_CHANGER_ELF,
+            }
+        }
+
+        /// A program that produces more output accounts than the inputs it received
+        pub fn extra_output_program() -> Self {
+            use test_program_methods::{EXTRA_OUTPUT_ELF, EXTRA_OUTPUT_ID};
+
+            Program {
+                id: EXTRA_OUTPUT_ID,
+                elf: EXTRA_OUTPUT_ELF,
+            }
+        }
+
+        /// A program that produces less output accounts than the inputs it received
+        pub fn missing_output_program() -> Self {
+            use test_program_methods::{MISSING_OUTPUT_ELF, MISSING_OUTPUT_ID};
+
+            Program {
+                id: MISSING_OUTPUT_ID,
+                elf: MISSING_OUTPUT_ELF,
+            }
+        }
+
+        /// A program that changes the program owner of an account to [0, 1, 2, 3, 4, 5, 6, 7]
+        pub fn program_owner_changer() -> Self {
+            use test_program_methods::{PROGRAM_OWNER_CHANGER_ELF, PROGRAM_OWNER_CHANGER_ID};
+
+            Program {
+                id: PROGRAM_OWNER_CHANGER_ID,
+                elf: PROGRAM_OWNER_CHANGER_ELF,
+            }
+        }
+
+        /// A program that transfers balance without caring about authorizations
+        pub fn simple_balance_transfer() -> Self {
+            use test_program_methods::{SIMPLE_BALANCE_TRANSFER_ELF, SIMPLE_BALANCE_TRANSFER_ID};
+
+            Program {
+                id: SIMPLE_BALANCE_TRANSFER_ID,
+                elf: SIMPLE_BALANCE_TRANSFER_ELF,
+            }
+        }
+
+        /// A program that modifies the data of an account
+        pub fn data_changer() -> Self {
+            use test_program_methods::{DATA_CHANGER_ELF, DATA_CHANGER_ID};
+
+            Program {
+                id: DATA_CHANGER_ID,
+                elf: DATA_CHANGER_ELF,
+            }
+        }
+
+        /// A program that mints balance
+        pub fn minter() -> Self {
+            use test_program_methods::{MINTER_ELF, MINTER_ID};
+
+            Program {
+                id: MINTER_ID,
+                elf: MINTER_ELF,
+            }
+        }
+
+        /// A program that burns balance
+        pub fn burner() -> Self {
+            use test_program_methods::{BURNER_ELF, BURNER_ID};
+
+            Program {
+                id: BURNER_ID,
+                elf: BURNER_ELF,
+            }
+        }
+    }
+
+    #[test]
+    fn test_program_execution() {
+        let program = Program::simple_balance_transfer();
+        let balance_to_move: u128 = 11223344556677;
+        let instruction_data = Program::serialize_instruction(balance_to_move).unwrap();
+        let sender = AccountWithMetadata {
+            account: Account {
+                balance: 77665544332211,
+                ..Account::default()
+            },
+            is_authorized: false,
+        };
+        let recipient = AccountWithMetadata {
+            account: Account::default(),
+            is_authorized: false,
+        };
+
+        let expected_sender_post = Account {
+            balance: 77665544332211 - balance_to_move,
+            program_owner: program.id(),
+            ..Account::default()
+        };
+        let expected_recipient_post = Account {
+            balance: balance_to_move,
+            // Program claims the account since the pre_state has default prorgam owner
+            program_owner: program.id(),
+            ..Account::default()
+        };
+        let [sender_post, recipient_post] = program
+            .execute(&[sender, recipient], &instruction_data)
+            .unwrap()
+            .try_into()
+            .unwrap();
+
+        assert_eq!(sender_post, expected_sender_post);
+        assert_eq!(recipient_post, expected_recipient_post);
+    }
+}

nssa/src/public_transaction/encoding.rs

@@ -121,7 +121,7 @@ impl WitnessSet {
 
 impl PublicTransaction {
     pub fn to_bytes(&self) -> Vec<u8> {
-        let mut bytes = self.message.to_bytes();
+        let mut bytes = self.message().to_bytes();
         bytes.extend_from_slice(&self.witness_set().to_bytes());
         bytes
     }

nssa/src/public_transaction/mod.rs

@@ -6,3 +6,4 @@ mod witness_set;
 pub use message::Message;
 pub use transaction::PublicTransaction;
 pub use witness_set::WitnessSet;
+

nssa/src/public_transaction/transaction.rs

@@ -15,8 +15,8 @@ use crate::{
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct PublicTransaction {
-    pub(crate) message: Message,
+    message: Message,
-    pub(crate) witness_set: WitnessSet,
+    witness_set: WitnessSet,
 }
 
 impl PublicTransaction {
@@ -113,3 +113,202 @@ impl PublicTransaction {
         Ok(message.addresses.iter().cloned().zip(post_states).collect())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use sha2::{Digest, digest::FixedOutput};
+
+    use crate::{
+        Address, PrivateKey, PublicKey, PublicTransaction, Signature, V01State,
+        error::NssaError,
+        program::Program,
+        public_transaction::{Message, WitnessSet},
+    };
+
+    fn keys_for_tests() -> (PrivateKey, PrivateKey, Address, Address) {
+        let key1 = PrivateKey::try_new([1; 32]).unwrap();
+        let key2 = PrivateKey::try_new([2; 32]).unwrap();
+        let addr1 = Address::from_public_key(&PublicKey::new_from_private_key(&key1));
+        let addr2 = Address::from_public_key(&PublicKey::new_from_private_key(&key2));
+        (key1, key2, addr1, addr2)
+    }
+
+    fn state_for_tests() -> V01State {
+        let (_, _, addr1, addr2) = keys_for_tests();
+        let initial_data = [(*addr1.value(), 10000), (*addr2.value(), 20000)];
+        V01State::new_with_genesis_accounts(&initial_data)
+    }
+
+    fn transaction_for_tests() -> PublicTransaction {
+        let (key1, key2, addr1, addr2) = keys_for_tests();
+        let nonces = vec![0, 0];
+        let instruction = 1337;
+        let message = Message::try_new(
+            Program::authenticated_transfer_program().id(),
+            vec![addr1, addr2],
+            nonces,
+            instruction,
+        )
+        .unwrap();
+
+        let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
+        PublicTransaction::new(message, witness_set)
+    }
+
+    #[test]
+    fn test_new_constructor() {
+        let tx = transaction_for_tests();
+        let message = tx.message().clone();
+        let witness_set = tx.witness_set().clone();
+        let tx_from_constructor = PublicTransaction::new(message.clone(), witness_set.clone());
+        assert_eq!(tx_from_constructor.message, message);
+        assert_eq!(tx_from_constructor.witness_set, witness_set);
+    }
+
+    #[test]
+    fn test_message_getter() {
+        let tx = transaction_for_tests();
+        assert_eq!(&tx.message, tx.message());
+    }
+
+    #[test]
+    fn test_witness_set_getter() {
+        let tx = transaction_for_tests();
+        assert_eq!(&tx.witness_set, tx.witness_set());
+    }
+
+    #[test]
+    fn test_signer_addresses() {
+        let tx = transaction_for_tests();
+        let expected_signer_addresses = vec![
+            Address::new([
+                27, 132, 197, 86, 123, 18, 100, 64, 153, 93, 62, 213, 170, 186, 5, 101, 215, 30,
+                24, 52, 96, 72, 25, 255, 156, 23, 245, 233, 213, 221, 7, 143,
+            ]),
+            Address::new([
+                77, 75, 108, 209, 54, 16, 50, 202, 155, 210, 174, 185, 217, 0, 170, 77, 69, 217,
+                234, 216, 10, 201, 66, 51, 116, 196, 81, 167, 37, 77, 7, 102,
+            ]),
+        ];
+        let signer_addresses = tx.signer_addresses();
+        assert_eq!(signer_addresses, expected_signer_addresses);
+    }
+
+    #[test]
+    fn test_public_transaction_encoding_bytes_roundtrip() {
+        let tx = transaction_for_tests();
+        let bytes = tx.to_bytes();
+        let tx_from_bytes = PublicTransaction::from_bytes(&bytes).unwrap();
+        assert_eq!(tx, tx_from_bytes);
+    }
+
+    #[test]
+    fn test_hash_is_sha256_of_transaction_bytes() {
+        let tx = transaction_for_tests();
+        let hash = tx.hash();
+        let expected_hash: [u8; 32] = {
+            let bytes = tx.to_bytes();
+            let mut hasher = sha2::Sha256::new();
+            hasher.update(&bytes);
+            hasher.finalize_fixed().into()
+        };
+        assert_eq!(hash, expected_hash);
+    }
+
+    #[test]
+    fn test_address_list_cant_have_duplicates() {
+        let (key1, _, addr1, _) = keys_for_tests();
+        let state = state_for_tests();
+        let nonces = vec![0, 0];
+        let instruction = 1337;
+        let message = Message::try_new(
+            Program::authenticated_transfer_program().id(),
+            vec![addr1.clone(), addr1],
+            nonces,
+            instruction,
+        )
+        .unwrap();
+
+        let witness_set = WitnessSet::for_message(&message, &[&key1, &key1]);
+        let tx = PublicTransaction::new(message, witness_set);
+        let result = tx.validate_and_compute_post_states(&state);
+        assert!(matches!(result, Err(NssaError::InvalidInput(_))))
+    }
+
+    #[test]
+    fn test_number_of_nonces_must_match_number_of_signatures() {
+        let (key1, key2, addr1, addr2) = keys_for_tests();
+        let state = state_for_tests();
+        let nonces = vec![0];
+        let instruction = 1337;
+        let message = Message::try_new(
+            Program::authenticated_transfer_program().id(),
+            vec![addr1, addr2],
+            nonces,
+            instruction,
+        )
+        .unwrap();
+
+        let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
+        let tx = PublicTransaction::new(message, witness_set);
+        let result = tx.validate_and_compute_post_states(&state);
+        assert!(matches!(result, Err(NssaError::InvalidInput(_))))
+    }
+
+    #[test]
+    fn test_all_signatures_must_be_valid() {
+        let (key1, key2, addr1, addr2) = keys_for_tests();
+        let state = state_for_tests();
+        let nonces = vec![0, 0];
+        let instruction = 1337;
+        let message = Message::try_new(
+            Program::authenticated_transfer_program().id(),
+            vec![addr1, addr2],
+            nonces,
+            instruction,
+        )
+        .unwrap();
+
+        let mut witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
+        witness_set.signatures_and_public_keys[0].0 = Signature { value: [1; 64] };
+        let tx = PublicTransaction::new(message, witness_set);
+        let result = tx.validate_and_compute_post_states(&state);
+        assert!(matches!(result, Err(NssaError::InvalidInput(_))))
+    }
+
+    #[test]
+    fn test_nonces_must_match_the_state_current_nonces() {
+        let (key1, key2, addr1, addr2) = keys_for_tests();
+        let state = state_for_tests();
+        let nonces = vec![0, 1];
+        let instruction = 1337;
+        let message = Message::try_new(
+            Program::authenticated_transfer_program().id(),
+            vec![addr1, addr2],
+            nonces,
+            instruction,
+        )
+        .unwrap();
+
+        let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
+        let tx = PublicTransaction::new(message, witness_set);
+        let result = tx.validate_and_compute_post_states(&state);
+        assert!(matches!(result, Err(NssaError::InvalidInput(_))))
+    }
+
+    #[test]
+    fn test_program_id_must_belong_to_bulitin_program_ids() {
+        let (key1, key2, addr1, addr2) = keys_for_tests();
+        let state = state_for_tests();
+        let nonces = vec![0, 0];
+        let instruction = 1337;
+        let unknown_program_id = [0xdeadbeef; 8];
+        let message =
+            Message::try_new(unknown_program_id, vec![addr1, addr2], nonces, instruction).unwrap();
+
+        let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
+        let tx = PublicTransaction::new(message, witness_set);
+        let result = tx.validate_and_compute_post_states(&state);
+        assert!(matches!(result, Err(NssaError::InvalidInput(_))))
+    }
+}

nssa/src/public_transaction/witness_set.rs

@@ -10,7 +10,7 @@ impl WitnessSet {
         let message_bytes = message.to_bytes();
         let signatures_and_public_keys = private_keys
             .iter()
-            .map(|&key| (Signature::new(key, &message_bytes), PublicKey::new(key)))
+            .map(|&key| (Signature::new(key, &message_bytes), PublicKey::new_from_private_key(key)))
             .collect();
         Self {
             signatures_and_public_keys,

nssa/src/signature/bip340_test_vectors.rs

@@ -19,12 +19,12 @@ pub struct TestVector {
 pub fn test_vectors() -> Vec<TestVector> {
     vec![
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "0000000000000000000000000000000000000000000000000000000000000003",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "F9308A019258C31049344F85F89D5229B531C845836F99B08601F113BCE036F9",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "0000000000000000000000000000000000000000000000000000000000000000",
             )),
@@ -40,12 +40,12 @@ pub fn test_vectors() -> Vec<TestVector> {
             verification_result: true,
         },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "B7E151628AED2A6ABF7158809CF4F3C762E7160F38B4DA56A784D9045190CFEF",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "0000000000000000000000000000000000000000000000000000000000000001",
             )),
@@ -61,12 +61,12 @@ pub fn test_vectors() -> Vec<TestVector> {
             verification_result: true,
         },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "C90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B14E5C9",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DD308AFEC5777E13121FA72B9CC1B7CC0139715309B086C960E18FD969774EB8",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "C87AA53824B4D7AE2EB035A2B5BBBCCC080E76CDC6D1692C4B0B62D798E6D906",
             )),
@@ -82,12 +82,12 @@ pub fn test_vectors() -> Vec<TestVector> {
             verification_result: true,
         },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "0B432B2677937381AEF05BB02A66ECD012773062CF3FA2549E44F58ED2401710",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "25D1DFF95105F5253C4022F628A996AD3A0D95FBF21D468A1B33F8C160D8F517",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
             )),
@@ -104,9 +104,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "D69C3509BB99E412E68B0FE8544E72837DFA30746D8BE2AA65975F29D22DC7B9",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("4DF3C3F68FCC83B27E9D42C90431A72499F17875C81A599B566C9889B9696703")
@@ -122,9 +122,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         // Test with invalid public key
         // TestVector {
         //     seckey: None,
-        //     pubkey: PublicKey(hex_to_bytes(
+        //     pubkey: PublicKey::new(hex_to_bytes(
         //                     "EEFDEA4CDB677750A420FEE807EACF21EB9898AE79B9768766E4FAA04A2D4A34",
-        //                 )),
+        //                 )).unwrap(),
         //     aux_rand: None,
         //     message: Some(
         //                     hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89").unwrap(),
@@ -138,9 +138,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         // },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -155,9 +155,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -172,9 +172,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -189,9 +189,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -206,9 +206,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -223,9 +223,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -240,9 +240,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -257,9 +257,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         },
         TestVector {
             seckey: None,
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659",
-            )),
+            )).unwrap(),
             aux_rand: None,
             message: Some(
                 hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89")
@@ -275,9 +275,9 @@ pub fn test_vectors() -> Vec<TestVector> {
         // Test with invalid public key
         // TestVector {
         //     seckey: None,
-        //     pubkey: PublicKey(hex_to_bytes(
+        //     pubkey: PublicKey::new(hex_to_bytes(
         //                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC30",
-        //                 )),
+        //                 )).unwrap(),
         //     aux_rand: None,
         //     message: Some(
         //                     hex::decode("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89").unwrap(),
@@ -290,12 +290,12 @@ pub fn test_vectors() -> Vec<TestVector> {
         //     verification_result: false,
         // },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "0340034003400340034003400340034003400340034003400340034003400340",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "778CAA53B4393AC467774D09497A87224BF9FAB6F6E68B23086497324D6FD117",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "0000000000000000000000000000000000000000000000000000000000000000",
             )),
@@ -308,12 +308,12 @@ pub fn test_vectors() -> Vec<TestVector> {
             verification_result: true,
         },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "0340034003400340034003400340034003400340034003400340034003400340",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "778CAA53B4393AC467774D09497A87224BF9FAB6F6E68B23086497324D6FD117",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "0000000000000000000000000000000000000000000000000000000000000000",
             )),
@@ -326,12 +326,12 @@ pub fn test_vectors() -> Vec<TestVector> {
             verification_result: true,
         },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "0340034003400340034003400340034003400340034003400340034003400340",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "778CAA53B4393AC467774D09497A87224BF9FAB6F6E68B23086497324D6FD117",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "0000000000000000000000000000000000000000000000000000000000000000",
             )),
@@ -344,12 +344,12 @@ pub fn test_vectors() -> Vec<TestVector> {
             verification_result: true,
         },
         TestVector {
-            seckey: Some(PrivateKey(hex_to_bytes(
+            seckey: Some(PrivateKey::try_new(hex_to_bytes(
                 "0340034003400340034003400340034003400340034003400340034003400340",
-            ))),
+            )).unwrap()),
-            pubkey: PublicKey(hex_to_bytes(
+            pubkey: PublicKey::new(hex_to_bytes(
                 "778CAA53B4393AC467774D09497A87224BF9FAB6F6E68B23086497324D6FD117",
-            )),
+            )).unwrap(),
             aux_rand: Some(hex_to_bytes::<32>(
                 "0000000000000000000000000000000000000000000000000000000000000000",
             )),

nssa/src/signature/encoding.rs

@@ -6,11 +6,11 @@ impl PublicKey {
     pub(crate) fn from_cursor(cursor: &mut Cursor<&[u8]>) -> Result<Self, NssaError> {
         let mut value = [0u8; 32];
         cursor.read_exact(&mut value)?;
-        Ok(Self(value))
+        Ok(Self::new(value)?)
     }
 
     pub(crate) fn to_bytes(&self) -> &[u8] {
-        &self.0
+        self.value()
     }
 }
 

nssa/src/signature/mod.rs

@@ -26,7 +26,7 @@ impl Signature {
     ) -> Self {
         let value = {
             let secp = secp256k1::Secp256k1::new();
-            let secret_key = secp256k1::SecretKey::from_byte_array(key.0).unwrap();
+            let secret_key = secp256k1::SecretKey::from_byte_array(*key.value()).unwrap();
             let keypair = secp256k1::Keypair::from_secret_key(&secp, &secret_key);
             let signature = secp.sign_schnorr_with_aux_rand(message, &keypair, &aux_random);
             signature.to_byte_array()
@@ -35,9 +35,55 @@ impl Signature {
     }
 
     pub fn is_valid_for(&self, bytes: &[u8], public_key: &PublicKey) -> bool {
-        let pk = secp256k1::XOnlyPublicKey::from_byte_array(public_key.0).unwrap();
+        let pk = secp256k1::XOnlyPublicKey::from_byte_array(*public_key.value()).unwrap();
         let secp = secp256k1::Secp256k1::new();
         let sig = secp256k1::schnorr::Signature::from_byte_array(self.value);
         secp.verify_schnorr(&sig, bytes, &pk).is_ok()
     }
 }
+
+#[cfg(test)]
+mod bip340_test_vectors;
+
+#[cfg(test)]
+mod tests {
+
+    use crate::{PublicKey, Signature, signature::bip340_test_vectors};
+
+    #[test]
+    fn test_signature_generation_from_bip340_test_vectors() {
+        for (i, test_vector) in bip340_test_vectors::test_vectors().into_iter().enumerate() {
+            let Some(private_key) = test_vector.seckey else {
+                continue;
+            };
+            let Some(aux_random) = test_vector.aux_rand else {
+                continue;
+            };
+            let Some(message) = test_vector.message else {
+                continue;
+            };
+            if !test_vector.verification_result {
+                continue;
+            }
+            let expected_signature = &test_vector.signature;
+
+            let signature = Signature::new_with_aux_random(&private_key, &message, aux_random);
+
+            assert_eq!(&signature, expected_signature, "Failed test vector {i}");
+        }
+    }
+
+    #[test]
+    fn test_signature_verification_from_bip340_test_vectors() {
+        for (i, test_vector) in bip340_test_vectors::test_vectors().into_iter().enumerate() {
+            let message = test_vector.message.unwrap_or(vec![]);
+            let expected_result = test_vector.verification_result;
+
+            let result = test_vector
+                .signature
+                .is_valid_for(&message, &test_vector.pubkey);
+
+            assert_eq!(result, expected_result, "Failed test vector {i}");
+        }
+    }
+}

nssa/src/signature/private_key.rs

@@ -6,7 +6,7 @@ use crate::error::NssaError;
 // TODO: Remove Debug, Clone, Serialize, Deserialize, PartialEq and Eq for security reasons
 // TODO: Implement Zeroize
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
-pub struct PrivateKey(pub(crate) [u8; 32]);
+pub struct PrivateKey([u8; 32]);
 
 impl PrivateKey {
     fn is_valid_key(value: [u8; 32]) -> bool {
@@ -20,4 +20,8 @@ impl PrivateKey {
             Err(NssaError::InvalidPrivateKey)
         }
     }
+
+    pub fn value(&self) -> &[u8; 32] {
+        &self.0
+    }
 }

nssa/src/signature/public_key.rs

@@ -1,13 +1,13 @@
-use crate::PrivateKey;
+use crate::{PrivateKey, error::NssaError};
 
 // TODO: Dummy impl. Replace by actual public key.
 #[derive(Debug, Clone, PartialEq, Eq)]
-pub struct PublicKey(pub(crate) [u8; 32]);
+pub struct PublicKey([u8; 32]);
 
 impl PublicKey {
-    pub fn new(key: &PrivateKey) -> Self {
+    pub fn new_from_private_key(key: &PrivateKey) -> Self {
         let value = {
-            let secret_key = secp256k1::SecretKey::from_byte_array(key.0).unwrap();
+            let secret_key = secp256k1::SecretKey::from_byte_array(*key.value()).unwrap();
             let public_key =
                 secp256k1::PublicKey::from_secret_key(&secp256k1::Secp256k1::new(), &secret_key);
             let (x_only, _) = public_key.x_only_public_key();
@@ -15,4 +15,35 @@ impl PublicKey {
         };
         Self(value)
     }
+
+    pub fn new(value: [u8; 32]) -> Result<Self, NssaError> {
+        // Check point is valid
+        let _ = secp256k1::XOnlyPublicKey::from_byte_array(value)
+            .map_err(|_| NssaError::InvalidPublicKey)?;
+        Ok(Self(value))
+    }
+
+    pub fn value(&self) -> &[u8; 32] {
+        &self.0
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::{PublicKey, signature::bip340_test_vectors};
+
+    #[test]
+    fn test_public_key_generation_from_bip340_test_vectors() {
+        for (i, test_vector) in bip340_test_vectors::test_vectors().into_iter().enumerate() {
+            let Some(private_key) = &test_vector.seckey else {
+                continue;
+            };
+            let public_key = PublicKey::new_from_private_key(private_key);
+            let expected_public_key = &test_vector.pubkey;
+            assert_eq!(
+                &public_key, expected_public_key,
+                "Failed test vector at index {i}"
+            );
+        }
+    }
 }

nssa/src/state.rs

@@ -5,8 +5,8 @@ use nssa_core::{account::Account, program::ProgramId};
 use std::collections::HashMap;
 
 pub struct V01State {
-    pub(crate) public_state: HashMap<Address, Account>,
+    public_state: HashMap<Address, Account>,
-    pub(crate) builtin_programs: HashMap<ProgramId, Program>,
+    builtin_programs: HashMap<ProgramId, Program>,
 }
 
 impl V01State {
@@ -79,3 +79,497 @@ impl V01State {
         self.public_state.insert(address, account);
     }
 }
+
+#[cfg(test)]
+mod tests {
+
+    use std::collections::HashMap;
+
+    use crate::{
+        Address, PublicKey, PublicTransaction, V01State, error::NssaError, program::Program,
+        public_transaction, signature::PrivateKey,
+    };
+    use nssa_core::account::Account;
+
+    fn transfer_transaction(
+        from: Address,
+        from_key: PrivateKey,
+        nonce: u128,
+        to: Address,
+        balance: u128,
+    ) -> PublicTransaction {
+        let addresses = vec![from, to];
+        let nonces = vec![nonce];
+        let program_id = Program::authenticated_transfer_program().id();
+        let message =
+            public_transaction::Message::try_new(program_id, addresses, nonces, balance).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[&from_key]);
+        PublicTransaction::new(message, witness_set)
+    }
+
+    #[test]
+    fn test_new_with_genesis() {
+        let key1 = PrivateKey::try_new([1; 32]).unwrap();
+        let key2 = PrivateKey::try_new([2; 32]).unwrap();
+        let addr1 = Address::from_public_key(&PublicKey::new_from_private_key(&key1));
+        let addr2 = Address::from_public_key(&PublicKey::new_from_private_key(&key2));
+        let initial_data = [(*addr1.value(), 100u128), (*addr2.value(), 151u128)];
+        let program = Program::authenticated_transfer_program();
+        let expected_public_state = {
+            let mut this = HashMap::new();
+            this.insert(
+                addr1,
+                Account {
+                    balance: 100,
+                    program_owner: program.id(),
+                    ..Account::default()
+                },
+            );
+            this.insert(
+                addr2,
+                Account {
+                    balance: 151,
+                    program_owner: program.id(),
+                    ..Account::default()
+                },
+            );
+            this
+        };
+        let expected_builtin_programs = {
+            let mut this = HashMap::new();
+            this.insert(program.id(), program);
+            this
+        };
+
+        let state = V01State::new_with_genesis_accounts(&initial_data);
+
+        assert_eq!(state.public_state, expected_public_state);
+        assert_eq!(state.builtin_programs, expected_builtin_programs);
+    }
+
+    #[test]
+    fn test_insert_program() {
+        let mut state = V01State::new_with_genesis_accounts(&[]);
+        let program_to_insert = Program::simple_balance_transfer();
+        let program_id = program_to_insert.id();
+        assert!(!state.builtin_programs.contains_key(&program_id));
+
+        state.insert_program(program_to_insert);
+
+        assert!(state.builtin_programs.contains_key(&program_id));
+    }
+
+    #[test]
+    fn test_get_account_by_address_non_default_account() {
+        let key = PrivateKey::try_new([1; 32]).unwrap();
+        let addr = Address::from_public_key(&PublicKey::new_from_private_key(&key));
+        let initial_data = [(*addr.value(), 100u128)];
+        let state = V01State::new_with_genesis_accounts(&initial_data);
+        let expected_account = state.public_state.get(&addr).unwrap();
+
+        let account = state.get_account_by_address(&addr);
+
+        assert_eq!(&account, expected_account);
+    }
+
+    #[test]
+    fn test_get_account_by_address_default_account() {
+        let addr2 = Address::new([0; 32]);
+        let state = V01State::new_with_genesis_accounts(&[]);
+        let expected_account = Account::default();
+
+        let account = state.get_account_by_address(&addr2);
+
+        assert_eq!(account, expected_account);
+    }
+
+    #[test]
+    fn test_builtin_programs_getter() {
+        let state = V01State::new_with_genesis_accounts(&[]);
+
+        let builtin_programs = state.builtin_programs();
+
+        assert_eq!(builtin_programs, &state.builtin_programs);
+    }
+
+    #[test]
+    fn transition_from_authenticated_transfer_program_invocation_default_account_destination() {
+        let key = PrivateKey::try_new([1; 32]).unwrap();
+        let address = Address::from_public_key(&PublicKey::new_from_private_key(&key));
+        let initial_data = [(*address.value(), 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data);
+        let from = address;
+        let to = Address::new([2; 32]);
+        assert_eq!(state.get_account_by_address(&to), Account::default());
+        let balance_to_move = 5;
+
+        let tx = transfer_transaction(from.clone(), key, 0, to.clone(), balance_to_move);
+        state.transition_from_public_transaction(&tx).unwrap();
+
+        assert_eq!(state.get_account_by_address(&from).balance, 95);
+        assert_eq!(state.get_account_by_address(&to).balance, 5);
+        assert_eq!(state.get_account_by_address(&from).nonce, 1);
+        assert_eq!(state.get_account_by_address(&to).nonce, 0);
+    }
+
+    #[test]
+    fn transition_from_authenticated_transfer_program_invocation_insuficient_balance() {
+        let key = PrivateKey::try_new([1; 32]).unwrap();
+        let address = Address::from_public_key(&PublicKey::new_from_private_key(&key));
+        let initial_data = [(*address.value(), 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data);
+        let from = address;
+        let from_key = key;
+        let to = Address::new([2; 32]);
+        let balance_to_move = 101;
+        assert!(state.get_account_by_address(&from).balance < balance_to_move);
+
+        let tx = transfer_transaction(from.clone(), from_key, 0, to.clone(), balance_to_move);
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::ProgramExecutionFailed(_))));
+        assert_eq!(state.get_account_by_address(&from).balance, 100);
+        assert_eq!(state.get_account_by_address(&to).balance, 0);
+        assert_eq!(state.get_account_by_address(&from).nonce, 0);
+        assert_eq!(state.get_account_by_address(&to).nonce, 0);
+    }
+
+    #[test]
+    fn transition_from_authenticated_transfer_program_invocation_non_default_account_destination() {
+        let key1 = PrivateKey::try_new([1; 32]).unwrap();
+        let key2 = PrivateKey::try_new([2; 32]).unwrap();
+        let address1 = Address::from_public_key(&PublicKey::new_from_private_key(&key1));
+        let address2 = Address::from_public_key(&PublicKey::new_from_private_key(&key2));
+        let initial_data = [(*address1.value(), 100), (*address2.value(), 200)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data);
+        let from = address2;
+        let from_key = key2;
+        let to = address1;
+        assert_ne!(state.get_account_by_address(&to), Account::default());
+        let balance_to_move = 8;
+
+        let tx = transfer_transaction(from.clone(), from_key, 0, to.clone(), balance_to_move);
+        state.transition_from_public_transaction(&tx).unwrap();
+
+        assert_eq!(state.get_account_by_address(&from).balance, 192);
+        assert_eq!(state.get_account_by_address(&to).balance, 108);
+        assert_eq!(state.get_account_by_address(&from).nonce, 1);
+        assert_eq!(state.get_account_by_address(&to).nonce, 0);
+    }
+
+    #[test]
+    fn transition_from_chained_authenticated_transfer_program_invocations() {
+        let key1 = PrivateKey::try_new([8; 32]).unwrap();
+        let address1 = Address::from_public_key(&PublicKey::new_from_private_key(&key1));
+        let key2 = PrivateKey::try_new([2; 32]).unwrap();
+        let address2 = Address::from_public_key(&PublicKey::new_from_private_key(&key2));
+        let initial_data = [(*address1.value(), 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data);
+        let address3 = Address::new([3; 32]);
+        let balance_to_move = 5;
+
+        let tx = transfer_transaction(address1.clone(), key1, 0, address2.clone(), balance_to_move);
+        state.transition_from_public_transaction(&tx).unwrap();
+        let balance_to_move = 3;
+        let tx = transfer_transaction(address2.clone(), key2, 0, address3.clone(), balance_to_move);
+        state.transition_from_public_transaction(&tx).unwrap();
+
+        assert_eq!(state.get_account_by_address(&address1).balance, 95);
+        assert_eq!(state.get_account_by_address(&address2).balance, 2);
+        assert_eq!(state.get_account_by_address(&address3).balance, 3);
+        assert_eq!(state.get_account_by_address(&address1).nonce, 1);
+        assert_eq!(state.get_account_by_address(&address2).nonce, 1);
+        assert_eq!(state.get_account_by_address(&address3).nonce, 0);
+    }
+
+    impl V01State {
+        /// Include test programs in the builtin programs map
+        pub fn with_test_programs(mut self) -> Self {
+            self.insert_program(Program::nonce_changer_program());
+            self.insert_program(Program::extra_output_program());
+            self.insert_program(Program::missing_output_program());
+            self.insert_program(Program::program_owner_changer());
+            self.insert_program(Program::simple_balance_transfer());
+            self.insert_program(Program::data_changer());
+            self.insert_program(Program::minter());
+            self.insert_program(Program::burner());
+            self
+        }
+
+        pub fn with_non_default_accounts_but_default_program_owners(mut self) -> Self {
+            let account_with_default_values_except_balance = Account {
+                balance: 100,
+                ..Account::default()
+            };
+            let account_with_default_values_except_nonce = Account {
+                nonce: 37,
+                ..Account::default()
+            };
+            let account_with_default_values_except_data = Account {
+                data: vec![0xca, 0xfe],
+                ..Account::default()
+            };
+            self.force_insert_account(
+                Address::new([255; 32]),
+                account_with_default_values_except_balance,
+            );
+            self.force_insert_account(
+                Address::new([254; 32]),
+                account_with_default_values_except_nonce,
+            );
+            self.force_insert_account(
+                Address::new([253; 32]),
+                account_with_default_values_except_data,
+            );
+            self
+        }
+
+        pub fn with_account_owned_by_burner_program(mut self) -> Self {
+            let account = Account {
+                program_owner: Program::burner().id(),
+                balance: 100,
+                ..Default::default()
+            };
+            self.force_insert_account(Address::new([252; 32]), account);
+            self
+        }
+    }
+
+    #[test]
+    fn test_program_should_fail_if_modifies_nonces() {
+        let initial_data = [([1; 32], 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let addresses = vec![Address::new([1; 32])];
+        let program_id = Program::nonce_changer_program().id();
+        let message =
+            public_transaction::Message::try_new(program_id, addresses, vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_output_accounts_exceed_inputs() {
+        let initial_data = [([1; 32], 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let addresses = vec![Address::new([1; 32])];
+        let program_id = Program::extra_output_program().id();
+        let message =
+            public_transaction::Message::try_new(program_id, addresses, vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_with_missing_output_accounts() {
+        let initial_data = [([1; 32], 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let addresses = vec![Address::new([1; 32]), Address::new([2; 32])];
+        let program_id = Program::missing_output_program().id();
+        let message =
+            public_transaction::Message::try_new(program_id, addresses, vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_program_owner() {
+        let initial_data = [([1; 32], 0)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let address = Address::new([1; 32]);
+        let account = state.get_account_by_address(&address);
+        // Assert the target account only differs from the default account in the program owner field
+        assert_ne!(account.program_owner, Account::default().program_owner);
+        assert_eq!(account.balance, Account::default().balance);
+        assert_eq!(account.nonce, Account::default().nonce);
+        assert_eq!(account.data, Account::default().data);
+        let program_id = Program::program_owner_changer().id();
+        let message =
+            public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_balance() {
+        let initial_data = [];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data)
+            .with_test_programs()
+            .with_non_default_accounts_but_default_program_owners();
+        let address = Address::new([255; 32]);
+        let account = state.get_account_by_address(&address);
+        // Assert the target account only differs from the default account in balance field
+        assert_eq!(account.program_owner, Account::default().program_owner);
+        assert_ne!(account.balance, Account::default().balance);
+        assert_eq!(account.nonce, Account::default().nonce);
+        assert_eq!(account.data, Account::default().data);
+        let program_id = Program::program_owner_changer().id();
+        let message =
+            public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_nonce() {
+        let initial_data = [];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data)
+            .with_test_programs()
+            .with_non_default_accounts_but_default_program_owners();
+        let address = Address::new([254; 32]);
+        let account = state.get_account_by_address(&address);
+        // Assert the target account only differs from the default account in nonce field
+        assert_eq!(account.program_owner, Account::default().program_owner);
+        assert_eq!(account.balance, Account::default().balance);
+        assert_ne!(account.nonce, Account::default().nonce);
+        assert_eq!(account.data, Account::default().data);
+        let program_id = Program::program_owner_changer().id();
+        let message =
+            public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_data() {
+        let initial_data = [];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data)
+            .with_test_programs()
+            .with_non_default_accounts_but_default_program_owners();
+        let address = Address::new([253; 32]);
+        let account = state.get_account_by_address(&address);
+        // Assert the target account only differs from the default account in data field
+        assert_eq!(account.program_owner, Account::default().program_owner);
+        assert_eq!(account.balance, Account::default().balance);
+        assert_eq!(account.nonce, Account::default().nonce);
+        assert_ne!(account.data, Account::default().data);
+        let program_id = Program::program_owner_changer().id();
+        let message =
+            public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_transfers_balance_from_non_owned_account() {
+        let initial_data = [([1; 32], 100)];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let sender_address = Address::new([1; 32]);
+        let receiver_address = Address::new([2; 32]);
+        let balance_to_move: u128 = 1;
+        let program_id = Program::simple_balance_transfer().id();
+        assert_ne!(
+            state.get_account_by_address(&sender_address).program_owner,
+            program_id
+        );
+        let message = public_transaction::Message::try_new(
+            program_id,
+            vec![sender_address, receiver_address],
+            vec![],
+            balance_to_move,
+        )
+        .unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_modifies_data_of_non_owned_account() {
+        let initial_data = [];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let address = Address::new([1; 32]);
+        let program_id = Program::data_changer().id();
+
+        // Consider the extreme case where the target account is the default account
+        assert_eq!(state.get_account_by_address(&address), Account::default());
+        assert_ne!(
+            state.get_account_by_address(&address).program_owner,
+            program_id
+        );
+        let message =
+            public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_does_not_preserve_total_balance_by_minting() {
+        let initial_data = [];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
+        let address = Address::new([1; 32]);
+        let program_id = Program::minter().id();
+
+        let message =
+            public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+
+    #[test]
+    fn test_program_should_fail_if_does_not_preserve_total_balance_by_burning() {
+        let initial_data = [];
+        let mut state = V01State::new_with_genesis_accounts(&initial_data)
+            .with_test_programs()
+            .with_account_owned_by_burner_program();
+        let program_id = Program::burner().id();
+        let address = Address::new([252; 32]);
+        assert_eq!(
+            state.get_account_by_address(&address).program_owner,
+            program_id
+        );
+        let balance_to_burn: u128 = 1;
+        assert!(state.get_account_by_address(&address).balance > balance_to_burn);
+
+        let message = public_transaction::Message::try_new(
+            program_id,
+            vec![address],
+            vec![],
+            balance_to_burn,
+        )
+        .unwrap();
+        let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
+        let tx = PublicTransaction::new(message, witness_set);
+        let result = state.transition_from_public_transaction(&tx);
+
+        assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
+    }
+}

nssa/src/tests/mod.rs

@@ -1,6 +0,0 @@
-mod bip340_test_vectors;
-mod program_tests;
-mod public_transaction_tests;
-mod signature_tests;
-mod state_tests;
-mod valid_execution_tests;

nssa/src/tests/program_tests.rs

@@ -1,123 +0,0 @@
-use nssa_core::account::{Account, AccountWithMetadata};
-
-use crate::program::Program;
-
-impl Program {
-    /// A program that changes the nonce of an account
-    pub fn nonce_changer_program() -> Self {
-        use test_program_methods::{NONCE_CHANGER_ELF, NONCE_CHANGER_ID};
-
-        Program {
-            id: NONCE_CHANGER_ID,
-            elf: NONCE_CHANGER_ELF,
-        }
-    }
-
-    /// A program that produces more output accounts than the inputs it received
-    pub fn extra_output_program() -> Self {
-        use test_program_methods::{EXTRA_OUTPUT_ELF, EXTRA_OUTPUT_ID};
-
-        Program {
-            id: EXTRA_OUTPUT_ID,
-            elf: EXTRA_OUTPUT_ELF,
-        }
-    }
-
-    /// A program that produces less output accounts than the inputs it received
-    pub fn missing_output_program() -> Self {
-        use test_program_methods::{MISSING_OUTPUT_ELF, MISSING_OUTPUT_ID};
-
-        Program {
-            id: MISSING_OUTPUT_ID,
-            elf: MISSING_OUTPUT_ELF,
-        }
-    }
-
-    /// A program that changes the program owner of an account to [0, 1, 2, 3, 4, 5, 6, 7]
-    pub fn program_owner_changer() -> Self {
-        use test_program_methods::{PROGRAM_OWNER_CHANGER_ELF, PROGRAM_OWNER_CHANGER_ID};
-
-        Program {
-            id: PROGRAM_OWNER_CHANGER_ID,
-            elf: PROGRAM_OWNER_CHANGER_ELF,
-        }
-    }
-
-    /// A program that transfers balance without caring about authorizations
-    pub fn simple_balance_transfer() -> Self {
-        use test_program_methods::{SIMPLE_BALANCE_TRANSFER_ELF, SIMPLE_BALANCE_TRANSFER_ID};
-
-        Program {
-            id: SIMPLE_BALANCE_TRANSFER_ID,
-            elf: SIMPLE_BALANCE_TRANSFER_ELF,
-        }
-    }
-
-    /// A program that modifies the data of an account
-    pub fn data_changer() -> Self {
-        use test_program_methods::{DATA_CHANGER_ELF, DATA_CHANGER_ID};
-
-        Program {
-            id: DATA_CHANGER_ID,
-            elf: DATA_CHANGER_ELF,
-        }
-    }
-
-    /// A program that mints balance
-    pub fn minter() -> Self {
-        use test_program_methods::{MINTER_ELF, MINTER_ID};
-
-        Program {
-            id: MINTER_ID,
-            elf: MINTER_ELF,
-        }
-    }
-
-    /// A program that burns balance
-    pub fn burner() -> Self {
-        use test_program_methods::{BURNER_ELF, BURNER_ID};
-
-        Program {
-            id: BURNER_ID,
-            elf: BURNER_ELF,
-        }
-    }
-}
-
-#[test]
-fn test_program_execution() {
-    let program = Program::simple_balance_transfer();
-    let balance_to_move: u128 = 11223344556677;
-    let instruction_data = Program::serialize_instruction(balance_to_move).unwrap();
-    let sender = AccountWithMetadata {
-        account: Account {
-            balance: 77665544332211,
-            ..Account::default()
-        },
-        is_authorized: false,
-    };
-    let recipient = AccountWithMetadata {
-        account: Account::default(),
-        is_authorized: false,
-    };
-
-    let expected_sender_post = Account {
-        balance: 77665544332211 - balance_to_move,
-        program_owner: program.id(),
-        ..Account::default()
-    };
-    let expected_recipient_post = Account {
-        balance: balance_to_move,
-        // Program claims the account since the pre_state has default prorgam owner
-        program_owner: program.id(),
-        ..Account::default()
-    };
-    let [sender_post, recipient_post] = program
-        .execute(&[sender, recipient], &instruction_data)
-        .unwrap()
-        .try_into()
-        .unwrap();
-
-    assert_eq!(sender_post, expected_sender_post);
-    assert_eq!(recipient_post, expected_recipient_post);
-}

nssa/src/tests/public_transaction_tests.rs

@@ -1,195 +0,0 @@
-use sha2::{Digest, digest::FixedOutput};
-
-use crate::{
-    Address, PrivateKey, PublicKey, PublicTransaction, Signature, V01State,
-    error::NssaError,
-    program::Program,
-    public_transaction::{Message, WitnessSet},
-};
-
-fn keys_for_tests() -> (PrivateKey, PrivateKey, Address, Address) {
-    let key1 = PrivateKey::try_new([1; 32]).unwrap();
-    let key2 = PrivateKey::try_new([2; 32]).unwrap();
-    let addr1 = Address::from_public_key(&PublicKey::new(&key1));
-    let addr2 = Address::from_public_key(&PublicKey::new(&key2));
-    (key1, key2, addr1, addr2)
-}
-
-fn state_for_tests() -> V01State {
-    let (_, _, addr1, addr2) = keys_for_tests();
-    let initial_data = [(*addr1.value(), 10000), (*addr2.value(), 20000)];
-    V01State::new_with_genesis_accounts(&initial_data)
-}
-
-fn transaction_for_tests() -> PublicTransaction {
-    let (key1, key2, addr1, addr2) = keys_for_tests();
-    let nonces = vec![0, 0];
-    let instruction = 1337;
-    let message = Message::try_new(
-        Program::authenticated_transfer_program().id(),
-        vec![addr1, addr2],
-        nonces,
-        instruction,
-    )
-    .unwrap();
-
-    let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
-    PublicTransaction::new(message, witness_set)
-}
-
-#[test]
-fn test_new_constructor() {
-    let tx = transaction_for_tests();
-    let message = tx.message().clone();
-    let witness_set = tx.witness_set().clone();
-    let tx_from_constructor = PublicTransaction::new(message.clone(), witness_set.clone());
-    assert_eq!(tx_from_constructor.message, message);
-    assert_eq!(tx_from_constructor.witness_set, witness_set);
-}
-
-#[test]
-fn test_message_getter() {
-    let tx = transaction_for_tests();
-    assert_eq!(&tx.message, tx.message());
-}
-
-#[test]
-fn test_witness_set_getter() {
-    let tx = transaction_for_tests();
-    assert_eq!(&tx.witness_set, tx.witness_set());
-}
-
-#[test]
-fn test_signer_addresses() {
-    let tx = transaction_for_tests();
-    let expected_signer_addresses = vec![
-        Address::new([
-            27, 132, 197, 86, 123, 18, 100, 64, 153, 93, 62, 213, 170, 186, 5, 101, 215, 30, 24,
-            52, 96, 72, 25, 255, 156, 23, 245, 233, 213, 221, 7, 143,
-        ]),
-        Address::new([
-            77, 75, 108, 209, 54, 16, 50, 202, 155, 210, 174, 185, 217, 0, 170, 77, 69, 217, 234,
-            216, 10, 201, 66, 51, 116, 196, 81, 167, 37, 77, 7, 102,
-        ]),
-    ];
-    let signer_addresses = tx.signer_addresses();
-    assert_eq!(signer_addresses, expected_signer_addresses);
-}
-
-#[test]
-fn test_public_transaction_encoding_bytes_roundtrip() {
-    let tx = transaction_for_tests();
-    let bytes = tx.to_bytes();
-    let tx_from_bytes = PublicTransaction::from_bytes(&bytes).unwrap();
-    assert_eq!(tx, tx_from_bytes);
-}
-
-#[test]
-fn test_hash_is_sha256_of_transaction_bytes() {
-    let tx = transaction_for_tests();
-    let hash = tx.hash();
-    let expected_hash: [u8; 32] = {
-        let bytes = tx.to_bytes();
-        let mut hasher = sha2::Sha256::new();
-        hasher.update(&bytes);
-        hasher.finalize_fixed().into()
-    };
-    assert_eq!(hash, expected_hash);
-}
-
-#[test]
-fn test_address_list_cant_have_duplicates() {
-    let (key1, _, addr1, _) = keys_for_tests();
-    let state = state_for_tests();
-    let nonces = vec![0, 0];
-    let instruction = 1337;
-    let message = Message::try_new(
-        Program::authenticated_transfer_program().id(),
-        vec![addr1.clone(), addr1],
-        nonces,
-        instruction,
-    )
-    .unwrap();
-
-    let witness_set = WitnessSet::for_message(&message, &[&key1, &key1]);
-    let tx = PublicTransaction::new(message, witness_set);
-    let result = tx.validate_and_compute_post_states(&state);
-    assert!(matches!(result, Err(NssaError::InvalidInput(_))))
-}
-
-#[test]
-fn test_number_of_nonces_must_match_number_of_signatures() {
-    let (key1, key2, addr1, addr2) = keys_for_tests();
-    let state = state_for_tests();
-    let nonces = vec![0];
-    let instruction = 1337;
-    let message = Message::try_new(
-        Program::authenticated_transfer_program().id(),
-        vec![addr1, addr2],
-        nonces,
-        instruction,
-    )
-    .unwrap();
-
-    let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
-    let tx = PublicTransaction::new(message, witness_set);
-    let result = tx.validate_and_compute_post_states(&state);
-    assert!(matches!(result, Err(NssaError::InvalidInput(_))))
-}
-
-#[test]
-fn test_all_signatures_must_be_valid() {
-    let (key1, key2, addr1, addr2) = keys_for_tests();
-    let state = state_for_tests();
-    let nonces = vec![0, 0];
-    let instruction = 1337;
-    let message = Message::try_new(
-        Program::authenticated_transfer_program().id(),
-        vec![addr1, addr2],
-        nonces,
-        instruction,
-    )
-    .unwrap();
-
-    let mut witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
-    witness_set.signatures_and_public_keys[0].0 = Signature { value: [1; 64] };
-    let tx = PublicTransaction::new(message, witness_set);
-    let result = tx.validate_and_compute_post_states(&state);
-    assert!(matches!(result, Err(NssaError::InvalidInput(_))))
-}
-
-#[test]
-fn test_nonces_must_match_the_state_current_nonces() {
-    let (key1, key2, addr1, addr2) = keys_for_tests();
-    let state = state_for_tests();
-    let nonces = vec![0, 1];
-    let instruction = 1337;
-    let message = Message::try_new(
-        Program::authenticated_transfer_program().id(),
-        vec![addr1, addr2],
-        nonces,
-        instruction,
-    )
-    .unwrap();
-
-    let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
-    let tx = PublicTransaction::new(message, witness_set);
-    let result = tx.validate_and_compute_post_states(&state);
-    assert!(matches!(result, Err(NssaError::InvalidInput(_))))
-}
-
-#[test]
-fn test_program_id_must_belong_to_bulitin_program_ids() {
-    let (key1, key2, addr1, addr2) = keys_for_tests();
-    let state = state_for_tests();
-    let nonces = vec![0, 0];
-    let instruction = 1337;
-    let unknown_program_id = [0xdeadbeef; 8];
-    let message =
-        Message::try_new(unknown_program_id, vec![addr1, addr2], nonces, instruction).unwrap();
-
-    let witness_set = WitnessSet::for_message(&message, &[&key1, &key2]);
-    let tx = PublicTransaction::new(message, witness_set);
-    let result = tx.validate_and_compute_post_states(&state);
-    assert!(matches!(result, Err(NssaError::InvalidInput(_))))
-}

nssa/src/tests/signature_tests.rs

@@ -1,53 +0,0 @@
-use crate::{PublicKey, Signature, tests::bip340_test_vectors};
-
-#[test]
-fn test_signature_generation_from_bip340_test_vectors() {
-    for (i, test_vector) in bip340_test_vectors::test_vectors().into_iter().enumerate() {
-        let Some(private_key) = test_vector.seckey else {
-            continue;
-        };
-        let Some(aux_random) = test_vector.aux_rand else {
-            continue;
-        };
-        let Some(message) = test_vector.message else {
-            continue;
-        };
-        if !test_vector.verification_result {
-            continue;
-        }
-        let expected_signature = &test_vector.signature;
-
-        let signature = Signature::new_with_aux_random(&private_key, &message, aux_random);
-
-        assert_eq!(&signature, expected_signature, "Failed test vector {i}");
-    }
-}
-
-#[test]
-fn test_signature_verification_from_bip340_test_vectors() {
-    for (i, test_vector) in bip340_test_vectors::test_vectors().into_iter().enumerate() {
-        let message = test_vector.message.unwrap_or(vec![]);
-        let expected_result = test_vector.verification_result;
-
-        let result = test_vector
-            .signature
-            .is_valid_for(&message, &test_vector.pubkey);
-
-        assert_eq!(result, expected_result, "Failed test vector {i}");
-    }
-}
-
-#[test]
-fn test_public_key_generation_from_bip340_test_vectors() {
-    for (i, test_vector) in bip340_test_vectors::test_vectors().into_iter().enumerate() {
-        let Some(private_key) = &test_vector.seckey else {
-            continue;
-        };
-        let public_key = PublicKey::new(private_key);
-        let expected_public_key = &test_vector.pubkey;
-        assert_eq!(
-            &public_key, expected_public_key,
-            "Failed test vector at index {i}"
-        );
-    }
-}

nssa/src/tests/state_tests.rs

@@ -1,198 +0,0 @@
-use std::collections::HashMap;
-
-use crate::{
-    Address, PublicKey, PublicTransaction, V01State, error::NssaError, program::Program,
-    public_transaction, signature::PrivateKey,
-};
-use nssa_core::account::Account;
-
-fn transfer_transaction(
-    from: Address,
-    from_key: PrivateKey,
-    nonce: u128,
-    to: Address,
-    balance: u128,
-) -> PublicTransaction {
-    let addresses = vec![from, to];
-    let nonces = vec![nonce];
-    let program_id = Program::authenticated_transfer_program().id();
-    let message =
-        public_transaction::Message::try_new(program_id, addresses, nonces, balance).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[&from_key]);
-    PublicTransaction::new(message, witness_set)
-}
-
-#[test]
-fn test_new_with_genesis() {
-    let key1 = PrivateKey::try_new([1; 32]).unwrap();
-    let key2 = PrivateKey::try_new([2; 32]).unwrap();
-    let addr1 = Address::from_public_key(&PublicKey::new(&key1));
-    let addr2 = Address::from_public_key(&PublicKey::new(&key2));
-    let initial_data = [(*addr1.value(), 100u128), (*addr2.value(), 151u128)];
-    let program = Program::authenticated_transfer_program();
-    let expected_public_state = {
-        let mut this = HashMap::new();
-        this.insert(
-            addr1,
-            Account {
-                balance: 100,
-                program_owner: program.id(),
-                ..Account::default()
-            },
-        );
-        this.insert(
-            addr2,
-            Account {
-                balance: 151,
-                program_owner: program.id(),
-                ..Account::default()
-            },
-        );
-        this
-    };
-    let expected_builtin_programs = {
-        let mut this = HashMap::new();
-        this.insert(program.id(), program);
-        this
-    };
-
-    let state = V01State::new_with_genesis_accounts(&initial_data);
-
-    assert_eq!(state.public_state, expected_public_state);
-    assert_eq!(state.builtin_programs, expected_builtin_programs);
-}
-
-#[test]
-fn test_insert_program() {
-    let mut state = V01State::new_with_genesis_accounts(&[]);
-    let program_to_insert = Program::simple_balance_transfer();
-    let program_id = program_to_insert.id();
-    assert!(!state.builtin_programs.contains_key(&program_id));
-
-    state.insert_program(program_to_insert);
-
-    assert!(state.builtin_programs.contains_key(&program_id));
-}
-
-#[test]
-fn test_get_account_by_address_non_default_account() {
-    let key = PrivateKey::try_new([1; 32]).unwrap();
-    let addr = Address::from_public_key(&PublicKey::new(&key));
-    let initial_data = [(*addr.value(), 100u128)];
-    let state = V01State::new_with_genesis_accounts(&initial_data);
-    let expected_account = state.public_state.get(&addr).unwrap();
-
-    let account = state.get_account_by_address(&addr);
-
-    assert_eq!(&account, expected_account);
-}
-
-#[test]
-fn test_get_account_by_address_default_account() {
-    let addr2 = Address::new([0; 32]);
-    let state = V01State::new_with_genesis_accounts(&[]);
-    let expected_account = Account::default();
-
-    let account = state.get_account_by_address(&addr2);
-
-    assert_eq!(account, expected_account);
-}
-
-#[test]
-fn test_builtin_programs_getter() {
-    let state = V01State::new_with_genesis_accounts(&[]);
-
-    let builtin_programs = state.builtin_programs();
-
-    assert_eq!(builtin_programs, &state.builtin_programs);
-}
-
-#[test]
-fn transition_from_authenticated_transfer_program_invocation_default_account_destination() {
-    let key = PrivateKey::try_new([1; 32]).unwrap();
-    let address = Address::from_public_key(&PublicKey::new(&key));
-    let initial_data = [(*address.value(), 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data);
-    let from = address;
-    let to = Address::new([2; 32]);
-    assert_eq!(state.get_account_by_address(&to), Account::default());
-    let balance_to_move = 5;
-
-    let tx = transfer_transaction(from.clone(), key, 0, to.clone(), balance_to_move);
-    state.transition_from_public_transaction(&tx).unwrap();
-
-    assert_eq!(state.get_account_by_address(&from).balance, 95);
-    assert_eq!(state.get_account_by_address(&to).balance, 5);
-    assert_eq!(state.get_account_by_address(&from).nonce, 1);
-    assert_eq!(state.get_account_by_address(&to).nonce, 0);
-}
-
-#[test]
-fn transition_from_authenticated_transfer_program_invocation_insuficient_balance() {
-    let key = PrivateKey::try_new([1; 32]).unwrap();
-    let address = Address::from_public_key(&PublicKey::new(&key));
-    let initial_data = [(*address.value(), 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data);
-    let from = address;
-    let from_key = key;
-    let to = Address::new([2; 32]);
-    let balance_to_move = 101;
-    assert!(state.get_account_by_address(&from).balance < balance_to_move);
-
-    let tx = transfer_transaction(from.clone(), from_key, 0, to.clone(), balance_to_move);
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::ProgramExecutionFailed(_))));
-    assert_eq!(state.get_account_by_address(&from).balance, 100);
-    assert_eq!(state.get_account_by_address(&to).balance, 0);
-    assert_eq!(state.get_account_by_address(&from).nonce, 0);
-    assert_eq!(state.get_account_by_address(&to).nonce, 0);
-}
-
-#[test]
-fn transition_from_authenticated_transfer_program_invocation_non_default_account_destination() {
-    let key1 = PrivateKey::try_new([1; 32]).unwrap();
-    let key2 = PrivateKey::try_new([2; 32]).unwrap();
-    let address1 = Address::from_public_key(&PublicKey::new(&key1));
-    let address2 = Address::from_public_key(&PublicKey::new(&key2));
-    let initial_data = [(*address1.value(), 100), (*address2.value(), 200)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data);
-    let from = address2;
-    let from_key = key2;
-    let to = address1;
-    assert_ne!(state.get_account_by_address(&to), Account::default());
-    let balance_to_move = 8;
-
-    let tx = transfer_transaction(from.clone(), from_key, 0, to.clone(), balance_to_move);
-    state.transition_from_public_transaction(&tx).unwrap();
-
-    assert_eq!(state.get_account_by_address(&from).balance, 192);
-    assert_eq!(state.get_account_by_address(&to).balance, 108);
-    assert_eq!(state.get_account_by_address(&from).nonce, 1);
-    assert_eq!(state.get_account_by_address(&to).nonce, 0);
-}
-
-#[test]
-fn transition_from_chained_authenticated_transfer_program_invocations() {
-    let key1 = PrivateKey::try_new([8; 32]).unwrap();
-    let address1 = Address::from_public_key(&PublicKey::new(&key1));
-    let key2 = PrivateKey::try_new([2; 32]).unwrap();
-    let address2 = Address::from_public_key(&PublicKey::new(&key2));
-    let initial_data = [(*address1.value(), 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data);
-    let address3 = Address::new([3; 32]);
-    let balance_to_move = 5;
-
-    let tx = transfer_transaction(address1.clone(), key1, 0, address2.clone(), balance_to_move);
-    state.transition_from_public_transaction(&tx).unwrap();
-    let balance_to_move = 3;
-    let tx = transfer_transaction(address2.clone(), key2, 0, address3.clone(), balance_to_move);
-    state.transition_from_public_transaction(&tx).unwrap();
-
-    assert_eq!(state.get_account_by_address(&address1).balance, 95);
-    assert_eq!(state.get_account_by_address(&address2).balance, 2);
-    assert_eq!(state.get_account_by_address(&address3).balance, 3);
-    assert_eq!(state.get_account_by_address(&address1).nonce, 1);
-    assert_eq!(state.get_account_by_address(&address2).nonce, 1);
-    assert_eq!(state.get_account_by_address(&address3).nonce, 0);
-}

nssa/src/tests/valid_execution_tests.rs

@@ -1,289 +0,0 @@
-use nssa_core::account::Account;
-
-use crate::{
-    Address, PublicTransaction, V01State, error::NssaError, program::Program, public_transaction,
-};
-
-impl V01State {
-    /// Include test programs in the builtin programs map
-    pub fn with_test_programs(mut self) -> Self {
-        self.insert_program(Program::nonce_changer_program());
-        self.insert_program(Program::extra_output_program());
-        self.insert_program(Program::missing_output_program());
-        self.insert_program(Program::program_owner_changer());
-        self.insert_program(Program::simple_balance_transfer());
-        self.insert_program(Program::data_changer());
-        self.insert_program(Program::minter());
-        self.insert_program(Program::burner());
-        self
-    }
-
-    pub fn with_non_default_accounts_but_default_program_owners(mut self) -> Self {
-        let account_with_default_values_except_balance = Account {
-            balance: 100,
-            ..Account::default()
-        };
-        let account_with_default_values_except_nonce = Account {
-            nonce: 37,
-            ..Account::default()
-        };
-        let account_with_default_values_except_data = Account {
-            data: vec![0xca, 0xfe],
-            ..Account::default()
-        };
-        self.force_insert_account(
-            Address::new([255; 32]),
-            account_with_default_values_except_balance,
-        );
-        self.force_insert_account(
-            Address::new([254; 32]),
-            account_with_default_values_except_nonce,
-        );
-        self.force_insert_account(
-            Address::new([253; 32]),
-            account_with_default_values_except_data,
-        );
-        self
-    }
-
-    pub fn with_account_owned_by_burner_program(mut self) -> Self {
-        let account = Account {
-            program_owner: Program::burner().id(),
-            balance: 100,
-            ..Default::default()
-        };
-        self.force_insert_account(Address::new([252; 32]), account);
-        self
-    }
-}
-
-#[test]
-fn test_program_should_fail_if_modifies_nonces() {
-    let initial_data = [([1; 32], 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let addresses = vec![Address::new([1; 32])];
-    let program_id = Program::nonce_changer_program().id();
-    let message = public_transaction::Message::try_new(program_id, addresses, vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_output_accounts_exceed_inputs() {
-    let initial_data = [([1; 32], 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let addresses = vec![Address::new([1; 32])];
-    let program_id = Program::extra_output_program().id();
-    let message = public_transaction::Message::try_new(program_id, addresses, vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_with_missing_output_accounts() {
-    let initial_data = [([1; 32], 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let addresses = vec![Address::new([1; 32]), Address::new([2; 32])];
-    let program_id = Program::missing_output_program().id();
-    let message = public_transaction::Message::try_new(program_id, addresses, vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_program_owner() {
-    let initial_data = [([1; 32], 0)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let address = Address::new([1; 32]);
-    let account = state.get_account_by_address(&address);
-    // Assert the target account only differs from the default account in the program owner field
-    assert_ne!(account.program_owner, Account::default().program_owner);
-    assert_eq!(account.balance, Account::default().balance);
-    assert_eq!(account.nonce, Account::default().nonce);
-    assert_eq!(account.data, Account::default().data);
-    let program_id = Program::program_owner_changer().id();
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_balance() {
-    let initial_data = [];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data)
-        .with_test_programs()
-        .with_non_default_accounts_but_default_program_owners();
-    let address = Address::new([255; 32]);
-    let account = state.get_account_by_address(&address);
-    // Assert the target account only differs from the default account in balance field
-    assert_eq!(account.program_owner, Account::default().program_owner);
-    assert_ne!(account.balance, Account::default().balance);
-    assert_eq!(account.nonce, Account::default().nonce);
-    assert_eq!(account.data, Account::default().data);
-    let program_id = Program::program_owner_changer().id();
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_nonce() {
-    let initial_data = [];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data)
-        .with_test_programs()
-        .with_non_default_accounts_but_default_program_owners();
-    let address = Address::new([254; 32]);
-    let account = state.get_account_by_address(&address);
-    // Assert the target account only differs from the default account in nonce field
-    assert_eq!(account.program_owner, Account::default().program_owner);
-    assert_eq!(account.balance, Account::default().balance);
-    assert_ne!(account.nonce, Account::default().nonce);
-    assert_eq!(account.data, Account::default().data);
-    let program_id = Program::program_owner_changer().id();
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_modifies_program_owner_with_only_non_default_data() {
-    let initial_data = [];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data)
-        .with_test_programs()
-        .with_non_default_accounts_but_default_program_owners();
-    let address = Address::new([253; 32]);
-    let account = state.get_account_by_address(&address);
-    // Assert the target account only differs from the default account in data field
-    assert_eq!(account.program_owner, Account::default().program_owner);
-    assert_eq!(account.balance, Account::default().balance);
-    assert_eq!(account.nonce, Account::default().nonce);
-    assert_ne!(account.data, Account::default().data);
-    let program_id = Program::program_owner_changer().id();
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_transfers_balance_from_non_owned_account() {
-    let initial_data = [([1; 32], 100)];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let sender_address = Address::new([1; 32]);
-    let receiver_address = Address::new([2; 32]);
-    let balance_to_move: u128 = 1;
-    let program_id = Program::simple_balance_transfer().id();
-    assert_ne!(
-        state.get_account_by_address(&sender_address).program_owner,
-        program_id
-    );
-    let message = public_transaction::Message::try_new(
-        program_id,
-        vec![sender_address, receiver_address],
-        vec![],
-        balance_to_move,
-    )
-    .unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_modifies_data_of_non_owned_account() {
-    let initial_data = [];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let address = Address::new([1; 32]);
-    let program_id = Program::data_changer().id();
-
-    // Consider the extreme case where the target account is the default account
-    assert_eq!(state.get_account_by_address(&address), Account::default());
-    assert_ne!(
-        state.get_account_by_address(&address).program_owner,
-        program_id
-    );
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_does_not_preserve_total_balance_by_minting() {
-    let initial_data = [];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data).with_test_programs();
-    let address = Address::new([1; 32]);
-    let program_id = Program::minter().id();
-
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], ()).unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}
-
-#[test]
-fn test_program_should_fail_if_does_not_preserve_total_balance_by_burning() {
-    let initial_data = [];
-    let mut state = V01State::new_with_genesis_accounts(&initial_data)
-        .with_test_programs()
-        .with_account_owned_by_burner_program();
-    let program_id = Program::burner().id();
-    let address = Address::new([252; 32]);
-    assert_eq!(
-        state.get_account_by_address(&address).program_owner,
-        program_id
-    );
-    let balance_to_burn: u128 = 1;
-    assert!(state.get_account_by_address(&address).balance > balance_to_burn);
-
-    let message =
-        public_transaction::Message::try_new(program_id, vec![address], vec![], balance_to_burn)
-            .unwrap();
-    let witness_set = public_transaction::WitnessSet::for_message(&message, &[]);
-    let tx = PublicTransaction::new(message, witness_set);
-    let result = state.transition_from_public_transaction(&tx);
-
-    assert!(matches!(result, Err(NssaError::InvalidProgramBehavior)));
-}