mirror of https://github.com/status-im/NimYAML.git
286 lines
9.8 KiB
Nim
286 lines
9.8 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 = int
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setTagUriForType(TrafficLight, "!tl")
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setTagUriForType(Node, "!example.net:Node")
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setTagUriForType(BetterInt, "!test:BetterInt")
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proc representObject*(value: BetterInt, ts: TagStyle = tsNone,
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c: SerializationContext): RawYamlStream {.raises: [].} =
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result = iterator(): YamlStreamEvent =
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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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yield scalarEvent(val, presentTag(BetterInt, ts), 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, ":"
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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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suite "Serialization":
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setup:
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let
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blockOnly = defineOptions(style=psBlockOnly)
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test "Serialization: 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 "Serialization: Represent string sequence":
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var input = @["a", "b"]
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var output = newStringStream()
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dump(input, output, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n- a\n- b", output.data
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test "Serialization: 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 "Serialization: Represent 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 = newStringStream()
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dump(input, output, tsNone, asTidy, blockOnly)
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assertStringEqual(
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"%YAML 1.2\n--- \n23: dreiundzwanzig\n42: zweiundvierzig",
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output.data)
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test "Serialization: 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 "Serialization: Represent Sequences in Sequence":
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let input = @[@[1.int32, 2.int32, 3.int32], @[4.int32, 5.int32],
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@[6.int32]]
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var output = newStringStream()
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dump(input, output, tsNone)
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assertStringEqual "%YAML 1.2\n--- \n- [1, 2, 3]\n- [4, 5]\n- [6]",
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output.data
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test "Serialization: Load Enum":
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let input = 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 "Serialization: Represent Enum":
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let input = @[tlRed, tlGreen, tlYellow]
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var output = newStringStream()
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dump(input, output, tsNone, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- \n- tlRed\n- tlGreen\n- tlYellow",
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output.data
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test "Serialization: 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 "Serialization: Represent Tuple":
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let input = (str: "value", i: 42.int32, b: true)
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var output = newStringStream()
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dump(input, output, tsNone)
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assertStringEqual "%YAML 1.2\n--- \nstr: value\ni: 42\nb: y",
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output.data
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test "Serialization: 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 "Serialization: Represent custom object":
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let input = Person(firstnamechar: 'P', surname: "Pan", age: 12)
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var output = newStringStream()
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dump(input, output, tsNone, asTidy, blockOnly)
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assertStringEqual(
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"%YAML 1.2\n--- \nfirstnamechar: P\nsurname: Pan\nage: 12",
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output.data)
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test "Serialization: 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 "Serialization: Represent sequence with explicit tags":
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let input = @["one", "two"]
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var output = newStringStream()
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dump(input, output, 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",
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output.data)
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test "Serialization: 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 "Serialization: Represent 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 = newStringStream()
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dump(input, output, 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.data)
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test "Serialization: Represent 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 = newStringStream()
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dump(a, output, 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.data
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test "Serialization: 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 "Serialization: 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 "Serialization: Represent 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 = newStringStream()
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dump(input, output, tsRootOnly, asTidy, blockOnly)
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assertStringEqual "%YAML 1.2\n--- !nim:system:seq(tag:yaml.org,2002:str) \n- !!null ~\n- !!str ~",
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output.data
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test "Serialization: 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)
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assert(result[1] == 3)
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test "Serialization: Custom representObject":
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let input = @[1.BetterInt, 9998887.BetterInt, 98312.BetterInt]
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var output = newStringStream()
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dump(input, output, 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.data |