mirror of
https://github.com/logos-storage/nim-serde.git
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10271bd494
Improves how types handle deserialization from string, including Option[T], seq[T], and Option[seq[T]] Empty and null strings are no longer deserialized to 0, instead an error Result is returned If an error occurs when parsing json, a JsonParseError is returned.
123 lines
4.6 KiB
Nim
123 lines
4.6 KiB
Nim
import std/options
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import std/unittest
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import pkg/stint
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import pkg/serde
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import pkg/questionable
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import pkg/questionable/results
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suite "json - deserialize stint":
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test "deserializes UInt256 from an empty JString":
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let json = newJString("")
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check !UInt256.fromJson(json) == 0.u256
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test "deserializes UInt256 from an empty string":
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check !UInt256.fromJson("") == 0.u256
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test "deserializes UInt256 from null string":
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let res = UInt256.fromJson("null")
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check res.error of SerdeError
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check res.error.msg == "Cannot deserialize 'null' into type UInt256"
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test "deserializes UInt256 from JNull":
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let res = UInt256.fromJson(newJNull())
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check res.error of UnexpectedKindError
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check res.error.msg ==
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"deserialization to UInt256 failed: expected {JInt, JString} but got JNull"
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test "deserializes ?UInt256 from an empty JString":
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let json = newJString("")
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check !Option[UInt256].fromJson(json) == UInt256.none
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test "deserializes ?UInt256 from an empty string":
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check !Option[UInt256].fromJson("") == UInt256.none
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test "deserializes ?UInt256 from null string":
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check !Option[UInt256].fromJson("null") == UInt256.none
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test "deserializes ?UInt256 from JNull":
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check !Option[UInt256].fromJson(newJNull()) == UInt256.none
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test "deserializes seq[UInt256] from string":
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check seq[UInt256].fromJson("[1,2,3]") == success @[1.u256, 2.u256, 3.u256]
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test "deserializes seq[UInt256] from string with empty string item":
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check seq[UInt256].fromJson("[1,2,\"\"]") == success @[1.u256, 2.u256, 0.u256]
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test "deserializes seq[UInt256] from string with null item":
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let res = seq[UInt256].fromJson("[1,2,null]")
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check res.error of UnexpectedKindError
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check res.error.msg ==
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"deserialization to UInt256 failed: expected {JInt, JString} but got JNull"
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test "deserializes seq[UInt256] from string with null string item":
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let res = seq[UInt256].fromJson("[1,2,\"null\"]")
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check res.error of SerdeError
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check res.error.msg == "Cannot deserialize 'null' into type UInt256"
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test "deserializes seq[?UInt256] from string":
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check seq[?UInt256].fromJson("[1,2,3]") ==
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success @[1.u256.some, 2.u256.some, 3.u256.some]
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test "deserializes seq[?UInt256] from string with empty string item":
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check seq[?UInt256].fromJson("[1,2,\"\"]") ==
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success @[1.u256.some, 2.u256.some, UInt256.none]
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test "deserializes seq[?UInt256] from string with null item":
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check seq[?UInt256].fromJson("[1,2,null]") ==
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success @[1.u256.some, 2.u256.some, UInt256.none]
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test "deserializes seq[?UInt256] from string with null string item":
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check seq[?UInt256].fromJson("[1,2,\"null\"]") ==
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success @[1.u256.some, 2.u256.some, UInt256.none]
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test "deserializes UInt256 from JString with no prefix":
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let json = newJString("1")
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check !UInt256.fromJson(json) == 1.u256
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test "deserializes ?UInt256 from JString with no prefix":
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let json = newJString("1")
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check !Option[UInt256].fromJson(json) == 1.u256.some
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test "deserializes UInt256 from string with no prefix":
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check !UInt256.fromJson("1") == 1.u256
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test "deserializes ?UInt256 from string with no prefix":
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check !Option[UInt256].fromJson("1") == 1.u256.some
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test "deserializes UInt256 from hex JString representation":
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let json = newJString("0x1")
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check !UInt256.fromJson(json) == 0x1.u256
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test "deserializes ?UInt256 from hex JString representation":
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let json = newJString("0x1")
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check !Option[UInt256].fromJson(json) == 0x1.u256.some
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test "deserializes ?UInt256 from hex string representation":
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check !Option[UInt256].fromJson("0x1") == 0x1.u256.some
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test "deserializes UInt256 from octal JString representation":
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let json = newJString("0o1")
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check !UInt256.fromJson(json) == 0o1.u256
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test "deserializes ?UInt256 from octal JString representation":
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let json = newJString("0o1")
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check !Option[UInt256].fromJson(json) == 0o1.u256.some
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test "deserializes ?UInt256 from octal string representation":
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check !Option[UInt256].fromJson("0o1") == 0o1.u256.some
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test "deserializes UInt256 from binary JString representation":
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let json = newJString("0b1")
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check !UInt256.fromJson(json) == 0b1.u256
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test "deserializes ?UInt256 from binary JString representation":
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let json = newJString("0b1")
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check !Option[UInt256].fromJson(json) == 0b1.u256.some
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test "deserializes ?UInt256 from binary string representation":
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check !Option[UInt256].fromJson("0b1") == 0b1.u256.some
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test "deserializes Int256 with no prefix":
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let json = newJString("1")
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check !Int256.fromJson(json) == 1.i256
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