mirror of
https://github.com/logos-storage/nim-contract-abi.git
synced 2026-01-02 13:43:12 +00:00
109 lines
2.6 KiB
Nim
109 lines
2.6 KiB
Nim
import std/unittest
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import contractabi
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import ./examples
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suite "ABI decoding":
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proc checkDecode[T](value: T) =
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let encoded = AbiEncoder.encode(value)
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check AbiDecoder.decode(encoded, T) == value
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proc checkDecode(T: type) =
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checkDecode(T.example)
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checkDecode(T.low)
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checkDecode(T.high)
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test "decodes uint8, uint16, 32, 64":
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checkDecode(uint8)
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checkDecode(uint16)
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checkDecode(uint32)
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checkDecode(uint64)
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# TODO: failure to decode when prefix not all zeroes
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# TODO: failure when trailing bytes
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test "decodes booleans":
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checkDecode(false)
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checkDecode(true)
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# TODO: failure to decode when value not 0 or 1
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test "decodes ranges":
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type SomeRange = range[0x0000'u16..0xAAAA'u16]
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checkDecode(SomeRange(42))
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checkDecode(SomeRange.low)
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checkDecode(SomeRange.high)
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# TODO: failure to decode when value not in range
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test "decodes enums":
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type SomeEnum = enum
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one = 1
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two = 2
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checkDecode(one)
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checkDecode(two)
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# TODO: failure to decode when invalid enum value
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test "decodes stints":
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checkDecode(UInt128)
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checkDecode(UInt256)
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test "decodes byte arrays":
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checkDecode([1'u8, 2'u8, 3'u8])
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checkDecode(array[32, byte].example)
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checkDecode(array[33, byte].example)
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# TODO: failure to decode when byte array of wrong length
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test "decodes byte sequences":
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checkDecode(@[1'u8, 2'u8, 3'u8])
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checkDecode(@(array[32, byte].example))
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checkDecode(@(array[33, byte].example))
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# TODO: failure to decode when not enough bytes
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test "decodes tuples":
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let a = true
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let b = @[1'u8, 2'u8, 3'u8]
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let c = 0xAABBCCDD'u32
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let d = @[4'u8, 5'u8, 6'u8]
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checkDecode( (a, b, c, d) )
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test "decodes nested tuples":
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let a = true
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let b = @[1'u8, 2'u8, 3'u8]
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let c = 0xAABBCCDD'u32
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let d = @[4'u8, 5'u8, 6'u8]
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checkDecode( (a, b, (c, d)) )
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test "reads elements after dynamic tuple":
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let a = @[1'u8, 2'u8, 3'u8]
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let b = 0xAABBCCDD'u32
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checkDecode( ((a,), b) )
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test "reads elements after static tuple":
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let a = 0x123'u16
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let b = 0xAABBCCDD'u32
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checkDecode( ((a,), b) )
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test "reads static tuple inside dynamic tuple":
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let a = @[1'u8, 2'u8, 3'u8]
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let b = 0xAABBCCDD'u32
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checkDecode( (a, (b,)) )
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test "reads empty tuples":
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checkDecode( ((),) )
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test "decodes sequences":
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checkDecode(@[seq[byte].example, seq[byte].example])
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test "decodes arrays with static elements":
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checkDecode([array[32, byte].example, array[32, byte].example])
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test "decodes arrays with dynamic elements":
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checkDecode([seq[byte].example, seq[byte].example])
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test "decodes strings":
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checkDecode("hello!☺")
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