mirror of https://github.com/status-im/NimYAML.git
651 lines
20 KiB
Nim
651 lines
20 KiB
Nim
# NimYAML - YAML implementation in Nim
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# (c) Copyright 2015-2023 Felix Krause
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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import "../yaml"
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import unittest, strutils, tables, times, math, options
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import commonTestUtils
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type
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MyTuple = tuple
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str: string
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i: int32
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b: bool
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TrafficLight = enum
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tlGreen, tlYellow, tlRed
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Person = object
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firstnamechar: char
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surname: string
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age: int32
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Node = object
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value: string
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next: ref Node
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BetterInt = distinct int
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AnimalKind = enum
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akCat, akDog
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Animal = object
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name: string
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case kind: AnimalKind
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of akCat:
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purringIntensity: int
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of akDog: barkometer: int
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DumbEnum = enum
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deA, deB, deC
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NonVariantWithTransient = object
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a {.transient.}, b, c {.transient.}, d: string
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VariantWithTransient = object
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gStorable: string
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gTemporary {.transient.}: string
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case kind: DumbEnum
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of deA:
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cStorable: string
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cTemporary {.transient.}: string
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of deB:
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alwaysThere: int
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of deC:
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neverThere {.transient.}: int
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WithDefault = object
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a, b {.defaultVal: "b".}, c, d {.defaultVal: "d".}: string
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WithIgnoredField {.ignore: ["z"].} = object
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x, y: int
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Parent = object of RootObj
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i*: int
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Child = object of Parent
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s*: string
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proc `$`(v: BetterInt): string {.borrow.}
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proc `==`(left, right: BetterInt): bool {.borrow.}
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setTag(TrafficLight, Tag("!tl"))
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setTag(Node, Tag("!example.net:Node"))
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setTag(BetterInt, Tag("!test:BetterInt"))
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const yamlDir = "---"
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const yamlTagDirs = "%TAG !n! tag:nimyaml.org,2016:\n---"
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proc representObject*(
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ctx : var SerializationContext,
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value: BetterInt,
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tag : Tag
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) {.raises: [].} =
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var
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val = $value
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i = val.len - 3
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while i > 0:
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val.insert("_", i)
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i -= 3
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ctx.put(scalarEvent(val, tag, yAnchorNone))
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proc constructObject*(
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ctx : var ConstructionContext,
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result: var BetterInt,
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) {.raises: [YamlConstructionError, YamlStreamError].} =
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ctx.input.constructScalarItem(item, BetterInt):
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result = BetterInt(parseBiggestInt(item.scalarContent) + 1)
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template expectConstructionError(li, co: int, message: string, body: typed) =
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try:
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body
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echo "Expected YamlConstructionError, but none was raised!"
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fail()
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except YamlConstructionError as e:
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doAssert li == e.mark.line, "Expected error line " & $li & ", was " & $e.mark.line
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doAssert co == e.mark.column, "Expected error column " & $co & ", was " & $e.mark.column
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doAssert message == e.msg, "Expected error message \n" & escape(message) &
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", got \n" & escape(e.msg)
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proc newNode(v: string): ref Node =
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new(result)
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result.value = v
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result.next = nil
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template dualTest(name: string, body: untyped) =
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test name:
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body
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# fix for compiler problem (comptime doesn't work when included from tests.nim)
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# possibly this issue: https://github.com/nim-lang/Nim/issues/18103
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when isMainModule:
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test name & " [comptime]":
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static: body
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suite "Serialization":
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dualTest "Load integer without fixed length":
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var input = "-4247"
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var result: int
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load(input, result)
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assert result == -4247, "result is " & $result
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input = $(int64(int32.high) + 1'i64)
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var gotException = false
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try: load(input, result)
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except YamlConstructionError: gotException = true
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assert gotException, "Expected exception, got none."
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test "Dump integer without fixed length":
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var input = -4247
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var output = blockOnlyDumper().dump(input)
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assertStringEqual "\"-4247\"\n", output
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when sizeof(int) == sizeof(int64):
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input = int(int32.high) + 1
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var gotException = false
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try: output = blockOnlyDumper().dump(input)
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except YamlSerializationError: gotException = true
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assert gotException, "Expected exception, got none."
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dualTest "Load Hex byte (0xFF)":
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let input = "0xFF"
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var result: byte
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load(input, result)
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assert(result == 255)
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dualTest "Load Hex byte (0xC)":
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let input = "0xC"
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var result: byte
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load(input, result)
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assert(result == 12)
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dualTest "Load Octal byte (0o14)":
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let input = "0o14"
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var result: byte
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load(input, result)
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assert(result == 12)
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dualTest "Load byte (14)":
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let input = "14"
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var result: byte
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load(input, result)
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assert(result == 14)
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dualTest "Load Hex int (0xFF)":
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let input = "0xFF"
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var result: int
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load(input, result)
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assert(result == 255)
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dualTest "Load Hex int (0xC)":
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let input = "0xC"
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var result: int
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load(input, result)
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assert(result == 12)
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dualTest "Load Octal int (0o14)":
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let input = "0o14"
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var result: int
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load(input, result)
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assert(result == 12)
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dualTest "Load int (14)":
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let input = "14"
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var result: int
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load(input, result)
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assert(result == 14)
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dualTest "Load floats":
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let input = "[6.8523015e+5, 685.230_15e+03, 685_230.15, -.inf, .NaN]"
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var result: seq[float]
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load(input, result)
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for i in 0..2:
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assert result[i] == 6.8523015e+5
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assert result[3] == NegInf
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assert classify(result[4]) == fcNan
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test "Load timestamps":
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let input = "[2001-12-15T02:59:43.1Z, 2001-12-14t21:59:43.10-05:00, 2001-12-14 21:59:43.10-5]"
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var result: seq[Time]
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load(input, result)
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assert result.len() == 3
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# currently, there is no good way of checking the result content, because
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# the parsed Time may have any timezone offset.
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dualTest "Load string sequence":
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let input = " - a\n - b"
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var result: seq[string]
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load(input, result)
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assert result.len == 2
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assert result[0] == "a"
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assert result[1] == "b"
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test "Dump string sequence":
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var input = @["a", "b"]
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var output = blockOnlyDumper().dump(input)
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assertStringEqual "- a\n- b\n", output
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dualTest "Load char set":
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let input = "- a\n- b"
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var result: set[char]
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load(input, result)
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assert result.card == 2
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assert 'a' in result
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assert 'b' in result
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test "Dump char set":
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var input = {'a', 'b'}
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var output = blockOnlyDumper().dump(input)
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assertStringEqual "- a\n- b\n", output
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dualTest "Load array":
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let input = "- 23\n- 42\n- 47"
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var result: array[0..2, int32]
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load(input, result)
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assert result[0] == 23
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assert result[1] == 42
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assert result[2] == 47
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test "Dump array":
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let input = [23'i32, 42'i32, 47'i32]
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var output = blockOnlyDumper().dump(input)
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assertStringEqual "- 23\n- 42\n- 47\n", output
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dualTest "Load Option":
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let input = "- Some\n- !!null ~"
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var result: array[0..1, Option[string]]
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load(input, result)
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assert result[0].isSome
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assert result[0].get() == "Some"
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assert not result[1].isSome
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test "Dump Option":
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let input = [none(int32), some(42'i32), none(int32)]
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let output = blockOnlyDumper().dump(input)
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assertStringEqual "- !!null ~\n- 42\n- !!null ~\n", output
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dualTest "Load Table[int, string]":
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let input = "23: dreiundzwanzig\n42: zweiundvierzig"
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var result: Table[int32, string]
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load(input, result)
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assert result.len == 2
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assert result[23] == "dreiundzwanzig"
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assert result[42] == "zweiundvierzig"
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test "Dump Table[int, string]":
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var input = initTable[int32, string]()
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input[23] = "dreiundzwanzig"
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input[42] = "zweiundvierzig"
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var output = blockOnlyDumper().dump(input)
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assertStringEqual("23: dreiundzwanzig\n42: zweiundvierzig\n",
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output)
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dualTest "Load OrderedTable[tuple[int32, int32], string]":
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let input = "- {a: 23, b: 42}: drzw\n- {a: 13, b: 47}: drsi"
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var result: OrderedTable[tuple[a, b: int32], string]
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load(input, result)
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var i = 0
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for key, value in result.pairs:
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case i
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of 0:
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assert key == (a: 23'i32, b: 42'i32)
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assert value == "drzw"
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of 1:
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assert key == (a: 13'i32, b: 47'i32)
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assert value == "drsi"
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else: assert false
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i.inc()
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test "Dump OrderedTable[tuple[int32, int32], string]":
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var input = initOrderedTable[tuple[a, b: int32], string]()
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input[(a: 23'i32, b: 42'i32)] = "dreiundzwanzigzweiundvierzig"
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input[(a: 13'i32, b: 47'i32)] = "dreizehnsiebenundvierzig"
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var dumper = blockOnlyDumper()
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dumper.serialization.tagStyle = tsRootOnly
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dumper.serialization.handles = initNimYamlTagHandle()
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var output = dumper.dump(input)
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assertStringEqual(yamlTagDirs &
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" !n!tables:OrderedTable(tag:nimyaml.org;2016:tuple(tag:nimyaml.org;2016:system:int32;tag:nimyaml.org;2016:system:int32);tag:yaml.org;2002:str)\n" &
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"- ? a: 23\n" &
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" b: 42\n" &
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" : dreiundzwanzigzweiundvierzig\n" &
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"- ? a: 13\n" &
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" b: 47\n" &
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" : dreizehnsiebenundvierzig\n", output)
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dualTest "Load Sequences in Sequence":
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let input = " - [1, 2, 3]\n - [4, 5]\n - [6]"
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var result: seq[seq[int32]]
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load(input, result)
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assert result.len == 3
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assert result[0] == @[1.int32, 2.int32, 3.int32]
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assert result[1] == @[4.int32, 5.int32]
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assert result[2] == @[6.int32]
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test "Dump Sequences in Sequence":
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let input = @[@[1.int32, 2.int32, 3.int32], @[4.int32, 5.int32], @[6.int32]]
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var output = Dumper().dump(input)
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assertStringEqual "- [1, 2, 3]\n- [4, 5]\n- [6]\n", output
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dualTest "Load Enum":
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let input =
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"!<tag:nimyaml.org,2016:system:seq(tl)>\n- !tl tlRed\n- tlGreen\n- tlYellow"
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var result: seq[TrafficLight]
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load(input, result)
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assert result.len == 3
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assert result[0] == tlRed
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assert result[1] == tlGreen
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assert result[2] == tlYellow
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test "Dump Enum":
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let input = @[tlRed, tlGreen, tlYellow]
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var output = blockOnlyDumper().dump(input)
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assertStringEqual "- tlRed\n- tlGreen\n- tlYellow\n", output
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dualTest "Load Tuple":
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let input = "str: value\ni: 42\nb: true"
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var result: MyTuple
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load(input, result)
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assert result.str == "value"
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assert result.i == 42
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assert result.b == true
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test "Dump Tuple":
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let input = (str: "value", i: 42.int32, b: true)
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var output = Dumper().dump(input)
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assertStringEqual "str: value\ni: 42\nb: true\n", output
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test "Load Tuple - unknown field":
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let input = "str: value\nfoo: bar\ni: 42\nb: true"
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var result: MyTuple
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expectConstructionError(2, 1, "While constructing MyTuple: Unknown field: \"foo\""):
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load(input, result)
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test "Load Tuple - missing field":
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let input = "str: value\nb: true"
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var result: MyTuple
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expectConstructionError(1, 1, "While constructing MyTuple: Missing field: \"i\""):
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load(input, result)
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test "Load Tuple - duplicate field":
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let input = "str: value\ni: 42\nb: true\nb: true"
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var result: MyTuple
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expectConstructionError(4, 1, "While constructing MyTuple: Duplicate field: \"b\""):
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load(input, result)
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dualTest "Load Multiple Documents":
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let input = "1\n---\n2"
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var result: seq[int]
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loadMultiDoc(input, result)
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assert(result.len == 2)
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assert result[0] == 1
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assert result[1] == 2
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dualTest "Load Multiple Documents (Single Doc)":
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let input = "1"
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var result: seq[int]
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loadMultiDoc(input, result)
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assert(result.len == 1)
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assert result[0] == 1
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dualTest "Load custom object":
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let input = "firstnamechar: P\nsurname: Pan\nage: 12"
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var result: Person
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load(input, result)
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assert result.firstnamechar == 'P'
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assert result.surname == "Pan"
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assert result.age == 12
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test "Dump custom object":
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let input = Person(firstnamechar: 'P', surname: "Pan", age: 12)
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var output = blockOnlyDumper().dump(input)
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assertStringEqual(
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"firstnamechar: P\nsurname: Pan\nage: 12\n", output)
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test "Load custom object - unknown field":
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let input = " firstnamechar: P\n surname: Pan\n age: 12\n occupation: free"
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var result: Person
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expectConstructionError(4, 3, "While constructing Person: Unknown field: \"occupation\""):
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load(input, result)
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test "Load custom object - missing field":
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let input = "surname: Pan\nage: 12\n "
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var result: Person
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expectConstructionError(1, 1, "While constructing Person: Missing field: \"firstnamechar\""):
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load(input, result)
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test "Load custom object - duplicate field":
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let input = "firstnamechar: P\nsurname: Pan\nage: 12\nsurname: Pan"
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var result: Person
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expectConstructionError(4, 1, "While constructing Person: Duplicate field: \"surname\""):
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load(input, result)
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dualTest "Load sequence with explicit tags":
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let input = yamlTagDirs & " !n!system:seq(" &
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"tag:yaml.org;2002:str)\n- !!str one\n- !!str two"
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var result: seq[string]
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load(input, result)
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assert result[0] == "one"
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assert result[1] == "two"
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test "Dump sequence with explicit tags":
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let input = @["one", "two"]
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var dumper = blockOnlyDumper()
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dumper.serialization.tagStyle = tsAll
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dumper.serialization.handles = initNimYamlTagHandle()
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var output = dumper.dump(input)
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assertStringEqual(yamlTagDirs & " !n!system:seq(" &
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"tag:yaml.org;2002:str)\n- !!str one\n- !!str two\n", output)
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dualTest "Load custom object with explicit root tag":
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let input =
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"--- !<tag:nimyaml.org,2016:custom:Person>\nfirstnamechar: P\nsurname: Pan\nage: 12"
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var result: Person
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load(input, result)
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assert result.firstnamechar == 'P'
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assert result.surname == "Pan"
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assert result.age == 12
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test "Dump custom object with explicit root tag":
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let input = Person(firstnamechar: 'P', surname: "Pan", age: 12)
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var dumper = blockOnlyDumper()
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dumper.serialization.tagStyle = tsRootOnly
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dumper.serialization.handles = initNimYamlTagHandle()
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var output = dumper.dump(input)
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assertStringEqual(yamlTagDirs &
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" !n!custom:Person\nfirstnamechar: P\nsurname: Pan\nage: 12\n", output)
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dualTest "Load object with inherited fields":
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let input =
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"i: 4\ns: hello"
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var result: Child
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load(input, result)
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assert result.i == 4
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assert result.s == "hello"
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dualTest "Load custom variant object":
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let input =
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"---\n- - name: Bastet\n - kind: akCat\n - purringIntensity: 7\n" &
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"- - name: Anubis\n - kind: akDog\n - barkometer: 13"
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var result: seq[Animal]
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load(input, result)
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assert result.len == 2
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assert result[0].name == "Bastet"
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assert result[0].kind == akCat
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assert result[0].purringIntensity == 7
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assert result[1].name == "Anubis"
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assert result[1].kind == akDog
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assert result[1].barkometer == 13
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test "Dump custom variant object":
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let input = @[Animal(name: "Bastet", kind: akCat, purringIntensity: 7),
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Animal(name: "Anubis", kind: akDog, barkometer: 13)]
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var output = blockOnlyDumper().dump(input)
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assertStringEqual "" &
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"- - name: Bastet\n" &
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" - kind: akCat\n" &
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" - purringIntensity: 7\n" &
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"- - name: Anubis\n" &
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" - kind: akDog\n" &
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" - barkometer: 13\n", output
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test "Load custom variant object - missing field":
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let input = "[{name: Bastet}, {kind: akCat}]"
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var result: Animal
|
|
expectConstructionError(1, 1, "While constructing Animal: Missing field: \"purringIntensity\""):
|
|
load(input, result)
|
|
|
|
dualTest "Load non-variant object with transient fields":
|
|
let input = "{b: b, d: d}"
|
|
var result: NonVariantWithTransient
|
|
load(input, result)
|
|
assert result.a.len == 0
|
|
assert result.b == "b"
|
|
assert result.c.len == 0
|
|
assert result.d == "d"
|
|
|
|
test "Load non-variant object with transient fields - unknown field":
|
|
let input = "{b: b, c: c, d: d}"
|
|
var result: NonVariantWithTransient
|
|
expectConstructionError(1, 8, "While constructing NonVariantWithTransient: Field \"c\" is transient and may not occur in input"):
|
|
load(input, result)
|
|
|
|
test "Dump non-variant object with transient fields":
|
|
let input = NonVariantWithTransient(a: "a", b: "b", c: "c", d: "d")
|
|
let output = blockOnlyDumper().dump(input)
|
|
assertStringEqual "b: b\nd: d\n", output
|
|
|
|
dualTest "Load variant object with transient fields":
|
|
let input = "[[gStorable: gs, kind: deA, cStorable: cs], [gStorable: a, kind: deC]]"
|
|
var result: seq[VariantWithTransient]
|
|
load(input, result)
|
|
assert result.len == 2
|
|
assert result[0].kind == deA
|
|
assert result[0].gStorable == "gs"
|
|
assert result[0].cStorable == "cs"
|
|
assert result[1].kind == deC
|
|
assert result[1].gStorable == "a"
|
|
|
|
test "Load variant object with transient fields, error":
|
|
let input = "[gStorable: gc, kind: deC, neverThere: foo]"
|
|
var result: VariantWithTransient
|
|
expectConstructionError(1, 28, "While constructing VariantWithTransient: Field \"neverThere\" is transient and may not occur in input"):
|
|
load(input, result)
|
|
|
|
test "Dump variant object with transient fields":
|
|
let input = @[VariantWithTransient(kind: deA, gStorable: "gs",
|
|
gTemporary: "gt", cStorable: "cs", cTemporary: "ct"),
|
|
VariantWithTransient(kind: deC, gStorable: "a", gTemporary: "b",
|
|
neverThere: 42)]
|
|
let output = blockOnlyDumper().dump(input)
|
|
assertStringEqual "" &
|
|
"- - gStorable: gs\n" &
|
|
" - kind: deA\n" &
|
|
" - cStorable: cs\n" &
|
|
"- - gStorable: a\n" &
|
|
" - kind: deC\n", output
|
|
|
|
dualTest "Load object with ignored key":
|
|
let input = "[{x: 1, y: 2}, {x: 3, z: 4, y: 5}, {z: [1, 2, 3], x: 4, y: 5}]"
|
|
var result: seq[WithIgnoredField]
|
|
load(input, result)
|
|
assert result.len == 3
|
|
assert result[0].x == 1
|
|
assert result[0].y == 2
|
|
assert result[1].x == 3
|
|
assert result[1].y == 5
|
|
assert result[2].x == 4
|
|
assert result[2].y == 5
|
|
|
|
test "Load object with ignored key - unknown field":
|
|
let input = "{x: 1, y: 2, zz: 3}"
|
|
var result: WithIgnoredField
|
|
expectConstructionError(1, 14, "While constructing WithIgnoredField: Unknown field: \"zz\""):
|
|
load(input, result)
|
|
|
|
when not defined(JS):
|
|
test "Dump cyclic data structure":
|
|
var
|
|
a = newNode("a")
|
|
b = newNode("b")
|
|
c = newNode("c")
|
|
a.next = b
|
|
b.next = c
|
|
c.next = a
|
|
var dumper = blockOnlyDumper()
|
|
dumper.serialization.tagStyle = tsRootOnly
|
|
var output = dumper.dump(a)
|
|
assertStringEqual yamlDir & " !example.net:Node &a\n" &
|
|
"value: a\n" &
|
|
"next:\n" &
|
|
" value: b\n" &
|
|
" next:\n" &
|
|
" value: c\n" &
|
|
" next: *a\n", output
|
|
|
|
test "Load cyclic data structure":
|
|
let input = yamlTagDirs & """ !n!system:seq(example.net:Node)
|
|
- &a
|
|
value: a
|
|
next: &b
|
|
value: b
|
|
next: &c
|
|
value: c
|
|
next: *a
|
|
- *b
|
|
- *c
|
|
"""
|
|
var result: seq[ref Node]
|
|
try: load(input, result)
|
|
except YamlConstructionError:
|
|
let ex = (ref YamlConstructionError)(getCurrentException())
|
|
echo "line ", ex.mark.line, ", column ", ex.mark.column, ": ", ex.msg
|
|
echo ex.lineContent
|
|
raise ex
|
|
|
|
assert(result.len == 3)
|
|
assert(result[0].value == "a")
|
|
assert(result[1].value == "b")
|
|
assert(result[2].value == "c")
|
|
assert(result[0].next == result[1])
|
|
assert(result[1].next == result[2])
|
|
assert(result[2].next == result[0])
|
|
|
|
dualTest "Load object with default values":
|
|
let input = "a: abc\nc: dce"
|
|
var result: WithDefault
|
|
load(input, result)
|
|
assert result.a == "abc"
|
|
assert result.b == "b"
|
|
assert result.c == "dce"
|
|
assert result.d == "d"
|
|
|
|
dualTest "Load object with partly default values":
|
|
let input = "a: abc\nb: bcd\nc: cde"
|
|
var result: WithDefault
|
|
load(input, result)
|
|
assert result.a == "abc"
|
|
assert result.b == "bcd"
|
|
assert result.c == "cde"
|
|
assert result.d == "d"
|
|
|
|
dualTest "Custom constructObject":
|
|
let input = "- 1\n- !test:BetterInt 2"
|
|
var result: seq[BetterInt]
|
|
load(input, result)
|
|
assert(result.len == 2)
|
|
assert(result[0] == 2.BetterInt)
|
|
assert(result[1] == 3.BetterInt)
|
|
|
|
test "Custom representObject":
|
|
let input = @[1.BetterInt, 9998887.BetterInt, 98312.BetterInt]
|
|
var dumper = blockOnlyDumper()
|
|
dumper.serialization.tagStyle = tsAll
|
|
dumper.serialization.handles = initNimYamlTagHandle()
|
|
var output = dumper.dump(input)
|
|
assertStringEqual yamlTagDirs & " !n!system:seq(test:BetterInt)\n" &
|
|
"- !test:BetterInt 1\n" &
|
|
"- !test:BetterInt 9_998_887\n" &
|
|
"- !test:BetterInt 98_312\n", output
|