107 lines
2.9 KiB
Nim
107 lines
2.9 KiB
Nim
# json-serialization
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# Copyright (c) 2019-2023 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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import
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std/[strutils, options],
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unittest2,
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results,
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serialization,
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../json_serialization/stew/results,
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../json_serialization/std/options,
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../json_serialization
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createJsonFlavor StringyJson
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proc writeValue*(
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w: var JsonWriter[StringyJson], val: SomeInteger) {.raises: [IOError].} =
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writeValue(w, $val)
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proc readValue*(r: var JsonReader[StringyJson], v: var SomeSignedInt) =
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try:
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v = type(v) parseBiggestInt readValue(r, string)
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except ValueError as err:
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r.raiseUnexpectedValue("A signed integer encoded as string " & err.msg)
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proc readValue*(r: var JsonReader[StringyJson], v: var SomeUnsignedInt) =
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try:
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v = type(v) parseBiggestUInt readValue(r, string)
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except ValueError as err:
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r.raiseUnexpectedValue("An unsigned integer encoded as string " & err.msg)
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type
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Container = object
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name: string
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x: int
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y: uint64
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list: seq[int64]
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OptionalFields = object
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one: Opt[string]
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two: Option[int]
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SpecialTypes = object
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one: JsonVoid
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two: JsonNumber[uint64]
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three: JsonNumber[string]
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four: JsonValueRef[uint64]
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Container.useDefaultSerializationIn StringyJson
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createJsonFlavor OptJson
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OptionalFields.useDefaultSerializationIn OptJson
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const
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jsonText = """
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{
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"one": "this text will gone",
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"two": -789.0009E-19,
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"three": 999.776000E+33,
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"four" : {
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"apple": [1, true, "three"],
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"banana": {
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"chip": 123,
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"z": null,
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"v": false
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}
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}
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}
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"""
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suite "Test JsonFlavor":
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test "basic test":
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let c = Container(name: "c", x: -10, y: 20, list: @[1'i64, 2, 25])
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let encoded = StringyJson.encode(c)
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check encoded == """{"name":"c","x":"-10","y":"20","list":["1","2","25"]}"""
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let decoded = StringyJson.decode(encoded, Container)
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check decoded == Container(name: "c", x: -10, y: 20, list: @[1, 2, 25])
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test "optional fields":
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let a = OptionalFields(one: Opt.some("hello"))
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let b = OptionalFields(two: some(567))
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let c = OptionalFields(one: Opt.some("burn"), two: some(333))
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let aa = OptJson.encode(a)
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check aa == """{"one":"hello"}"""
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let bb = OptJson.encode(b)
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check bb == """{"two":567}"""
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let cc = OptJson.encode(c)
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check cc == """{"one":"burn","two":333}"""
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test "Write special types":
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let vv = Json.decode(jsonText, SpecialTypes)
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let xx = Json.encode(vv)
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var ww = Json.decode(xx, SpecialTypes)
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ww.three.expSign = JsonSign.Pos # the rest of it should identical to vv
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check:
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ww == vv
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xx == """{"two":-789.0009e-19,"three":999.776000e33,"four":{"apple":[1,true,"three"],"banana":{"chip":123,"z":null,"v":false}}}"""
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