Merge pull request #459 from ethereum/mocked-host-nonce

mocked_host: add nonce to account

include/evmc/mocked_host.hpp

@@ -35,6 +35,9 @@ struct MockedAccount
         {}
     };
 
+    /// The account nonce.
+    int nonce = 0;
+
     /// The account code.
     bytes code;
 

test/unittests/test_cpp.cpp

@@ -633,4 +633,18 @@ TEST(cpp, result_create)
     ASSERT_TRUE(c.release);
     EXPECT_TRUE(std::memcmp(c.output_data, r.output_data, c.output_size) == 0);
     c.release(&c);
-}
+}
+
+TEST(cpp, mocked_account)
+{
+    using namespace evmc::literals;
+
+    evmc::MockedAccount account;
+    EXPECT_EQ(account.nonce, 0);
+    --account.nonce;
+    account.set_balance(0x0102030405060708);
+
+    EXPECT_EQ(account.balance,
+              0x0000000000000000000000000000000000000000000000000102030405060708_bytes32);
+    EXPECT_EQ(account.nonce, -1);
+}