mirror of https://github.com/status-im/NimYAML.git
486 lines
14 KiB
Nim
486 lines
14 KiB
Nim
# NimYAML - YAML implementation in Nim
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# (c) Copyright 2015 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
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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:
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barkometer: int
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proc `$`(v: BetterInt): string {.borrow.}
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proc `==`(left, right: BetterInt): bool {.borrow.}
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setTagUri(TrafficLight, "!tl")
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setTagUri(Node, "!example.net:Node")
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setTagUri(BetterInt, "!test:BetterInt")
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proc representObject*(value: BetterInt, ts: TagStyle = tsNone,
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c: SerializationContext, tag: TagId) {.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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c.put(scalarEvent(val, tag, yAnchorNone))
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proc constructObject*(s: var YamlStream, c: ConstructionContext,
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result: var BetterInt)
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{.raises: [YamlConstructionError, YamlStreamError].} =
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constructScalarItem(s, item, BetterInt):
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result = BetterInt(parseBiggestInt(item.scalarContent) + 1)
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template assertStringEqual(expected, actual: string) =
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for i in countup(0, min(expected.len, actual.len)):
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if expected[i] != actual[i]:
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echo "string mismatch at character #", i, "(expected:\'",
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expected[i], "\', was \'", actual[i], "\'):"
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echo "expected:\n", expected, "\nactual:\n", actual
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assert(false)
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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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let blockOnly = defineOptions(style=psBlockOnly)
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suite "Serialization":
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test "Load integer without fixed length":
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var input = newStringStream("-4247")
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var result: int
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load(input, result)
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assert result == -4247, "result is " & $result
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input = newStringStream($(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: 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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n\"-4247\"", 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 = dump(input, tsNone, asTidy, blockOnly)
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except: gotException = true
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assert gotException, "Expected exception, got none."
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test "Load Hex byte (0xFF)":
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let input = newStringStream("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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test "Load Hex byte (0xC)":
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let input = newStringStream("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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test "Load Octal byte (0o14)":
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let input = newStringStream("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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test "Load byte (14)":
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let input = newStringStream("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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test "Load Hex int (0xFF)":
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let input = newStringStream("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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test "Load Hex int (0xC)":
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let input = newStringStream("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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test "Load Octal int (0o14)":
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let input = newStringStream("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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test "Load int (14)":
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let input = newStringStream("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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test "Load nil string":
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let input = newStringStream("!nim:nil:string \"\"")
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var result: string
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load(input, result)
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assert isNil(result)
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test "Dump nil string":
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let input: string = nil
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var output = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n!nim:nil:string \"\"", output
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test "Load string sequence":
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let input = newStringStream(" - 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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n- a\n- b", output
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test "Load nil seq":
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let input = newStringStream("!nim:nil:seq \"\"")
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var result: seq[int]
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load(input, result)
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assert isNil(result)
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test "Dump nil seq":
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let input: seq[int] = nil
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var output = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n!nim:nil:seq \"\"", output
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test "Load char set":
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let input = newStringStream("- 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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n- a\n- b", output
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test "Load array":
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let input = newStringStream("- 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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n- 23\n- 42\n- 47", output
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test "Load Table[int, string]":
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let input = newStringStream("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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual("%YAML 1.2\n--- \n23: dreiundzwanzig\n42: zweiundvierzig",
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output)
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test "Load OrderedTable[tuple[int32, int32], string]":
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let input = newStringStream("- {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.add((a: 23'i32, b: 42'i32), "dreiundzwanzigzweiundvierzig")
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input.add((a: 13'i32, b: 47'i32), "dreizehnsiebenundvierzig")
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var output = dump(input, tsRootOnly, asTidy, blockOnly)
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assertStringEqual("""%YAML 1.2
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--- !nim:tables:OrderedTable(nim:tuple(nim:system:int32,nim:system:int32),tag:yaml.org,2002:str)
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-
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?
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a: 23
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b: 42
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: dreiundzwanzigzweiundvierzig
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-
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?
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a: 13
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b: 47
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: dreizehnsiebenundvierzig""", output)
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test "Load Sequences in Sequence":
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let input = newStringStream(" - [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 = dump(input, tsNone)
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assertStringEqual "%YAML 1.2\n--- \n- [1, 2, 3]\n- [4, 5]\n- [6]", output
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test "Load Enum":
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let input =
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newStringStream("!nim: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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n- tlRed\n- tlGreen\n- tlYellow", output
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test "Load Tuple":
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let input = newStringStream("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 = dump(input, tsNone)
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assertStringEqual "%YAML 1.2\n--- \nstr: value\ni: 42\nb: y", output
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test "Load Multiple Documents":
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let input = newStringStream("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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test "Load Multiple Documents (Single Doc)":
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let input = newStringStream("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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test "Load custom object":
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let input = newStringStream("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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual(
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"%YAML 1.2\n--- \nfirstnamechar: P\nsurname: Pan\nage: 12", output)
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test "Load sequence with explicit tags":
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let input = newStringStream("--- !nim: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 output = dump(input, tsAll, asTidy, blockOnly)
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assertStringEqual("%YAML 1.2\n--- !nim:system:seq(" &
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"tag:yaml.org,2002:str) \n- !!str one\n- !!str two", output)
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test "Load custom object with explicit root tag":
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let input = newStringStream(
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"--- !nim: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 output = dump(input, tsRootOnly, asTidy, blockOnly)
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assertStringEqual("%YAML 1.2\n" &
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"--- !nim:custom:Person \nfirstnamechar: P\nsurname: Pan\nage: 12",
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output)
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test "Load custom variant object":
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let input = newStringStream(
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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 = dump(input, tsNone, asTidy, blockOnly)
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assertStringEqual """%YAML 1.2
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---
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-
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-
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name: Bastet
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-
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kind: akCat
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-
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purringIntensity: 7
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-
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-
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name: Anubis
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-
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kind: akDog
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-
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barkometer: 13""", output
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test "Dump cyclic data structure":
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var
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a = newNode("a")
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b = newNode("b")
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c = newNode("c")
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a.next = b
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b.next = c
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c.next = a
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var output = dump(a, tsRootOnly, asTidy, blockOnly)
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assertStringEqual """%YAML 1.2
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--- !example.net:Node &a
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value: a
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next:
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value: b
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next:
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value: c
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next: *a""", output
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test "Load cyclic data structure":
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let input = newStringStream("""%YAML 1.2
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--- !nim:system:seq(example.net:Node)
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- &a
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value: a
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next: &b
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value: b
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next: &c
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value: c
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next: *a
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- *b
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- *c
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""")
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var result: seq[ref Node]
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try: load(input, result)
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except YamlConstructionError:
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let ex = (ref YamlConstructionError)(getCurrentException())
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echo "line ", ex.line, ", column ", ex.column, ": ", ex.msg
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echo ex.lineContent
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raise ex
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assert(result.len == 3)
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assert(result[0].value == "a")
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assert(result[1].value == "b")
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assert(result[2].value == "c")
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assert(result[0].next == result[1])
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assert(result[1].next == result[2])
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assert(result[2].next == result[0])
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test "Load nil values":
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let input = newStringStream("- ~\n- !!str ~")
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var result: seq[ref string]
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try: load(input, result)
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except YamlConstructionError:
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let ex = (ref YamlConstructionError)(getCurrentException())
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echo "line ", ex.line, ", column ", ex.column, ": ", ex.msg
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echo ex.lineContent
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raise ex
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assert(result.len == 2)
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assert(result[0] == nil)
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assert(result[1][] == "~")
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test "Dump nil values":
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var input = newSeq[ref string]()
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input.add(nil)
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input.add(new string)
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input[1][] = "~"
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var output = dump(input, tsRootOnly, asTidy, blockOnly)
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assertStringEqual(
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"%YAML 1.2\n--- !nim:system:seq(tag:yaml.org,2002:str) \n- !!null ~\n- !!str ~",
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output)
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test "Custom constructObject":
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let input = newStringStream("- 1\n- !test:BetterInt 2")
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var result: seq[BetterInt]
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load(input, result)
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assert(result.len == 2)
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assert(result[0] == 2.BetterInt)
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assert(result[1] == 3.BetterInt)
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test "Custom representObject":
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let input = @[1.BetterInt, 9998887.BetterInt, 98312.BetterInt]
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var output = dump(input, tsAll, asTidy, blockOnly)
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assertStringEqual """%YAML 1.2
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--- !nim:system:seq(test:BetterInt)
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- !test:BetterInt 1
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- !test:BetterInt 9_998_887
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- !test:BetterInt 98_312""", output
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