NimYAML/test/dom.nim

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# NimYAML - YAML implementation in Nim
# (c) Copyright 2015 Felix Krause
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
2016-02-22 20:56:30 +00:00
import "../yaml"
import unittest, common
suite "DOM":
test "DOM: Composing simple Scalar":
let
input = newStringStream("scalar")
result = loadDOM(input)
assert result.root.kind == yScalar
assert result.root.content == "scalar"
assert result.root.tag == "?"
test "DOM: Serializing simple Scalar":
let input = initYamlDoc(newYamlNode("scalar"))
var result = serialize(input, initExtendedTagLibrary())
ensure(result, startDocEvent(), scalarEvent("scalar"), endDocEvent())
test "DOM: Composing sequence":
let
input = newStringStream("- !!str a\n- !!bool no")
result = loadDOM(input)
assert result.root.kind == ySequence
assert result.root.tag == "?"
assert result.root.children.len == 2
assert result.root.children[0].kind == yScalar
assert result.root.children[0].tag == "tag:yaml.org,2002:str"
assert result.root.children[0].content == "a"
assert result.root.children[1].kind == yScalar
assert result.root.children[1].tag == "tag:yaml.org,2002:bool"
assert result.root.children[1].content == "no"
test "DOM: Serializing sequence":
let input = initYamlDoc(newYamlNode([
newYamlNode("a", "tag:yaml.org,2002:str"),
newYamlNode("no", "tag:yaml.org,2002:bool")]))
var result = serialize(input, initExtendedTagLibrary())
ensure(result, startDocEvent(), startSeqEvent(),
scalarEvent("a", yTagString), scalarEvent("no", yTagBoolean),
endSeqEvent(), endDocEvent())
test "DOM: Composing mapping":
let
input = newStringStream("--- !!map\n!foo bar: [a, b]")
result = loadDOM(input)
assert result.root.kind == yMapping
assert result.root.tag == "tag:yaml.org,2002:map"
assert result.root.pairs.len == 1
assert result.root.pairs[0].key.kind == yScalar
assert result.root.pairs[0].key.tag == "!foo"
assert result.root.pairs[0].key.content == "bar"
assert result.root.pairs[0].value.kind == ySequence
assert result.root.pairs[0].value.children.len == 2
test "DOM: Serializing mapping":
let input = initYamlDoc(newYamlNode([
(key: newYamlNode("bar"), value: newYamlNode([newYamlNode("a"),
newYamlNode("b")]))]))
var result = serialize(input, initExtendedTagLibrary())
ensure(result, startDocEvent(), startMapEvent(), scalarEvent("bar"),
startSeqEvent(), scalarEvent("a"), scalarEvent("b"),
endSeqEvent(), endMapEvent(), endDocEvent())
test "DOM: Composing with anchors":
let
input = newStringStream("- &a foo\n- &b bar\n- *a\n- *b")
result = loadDOM(input)
assert result.root.kind == ySequence
assert result.root.children.len == 4
assert result.root.children[0].kind == yScalar
assert result.root.children[0].content == "foo"
assert result.root.children[1].kind == yScalar
assert result.root.children[1].content == "bar"
assert result.root.children[0] == result.root.children[2]
assert result.root.children[1] == result.root.children[3]
test "DOM: Serializing with anchors":
let
a = newYamlNode("a")
b = newYamlNode("b")
input = initYamlDoc(newYamlNode([a, b, newYamlNode("c"), a, b]))
var result = serialize(input, initExtendedTagLibrary())
ensure(result, startDocEvent(), startSeqEvent(),
scalarEvent("a", anchor=0.AnchorId),
scalarEvent("b", anchor=1.AnchorId), scalarEvent("c"),
aliasEvent(0.AnchorId), aliasEvent(1.AnchorId), endSeqEvent(),
endDocEvent())
test "DOM: Serializing with all anchors":
let
a = newYamlNode("a")
input = initYamlDoc(newYamlNode([a, newYamlNode("b"), a]))
var result = serialize(input, initExtendedTagLibrary(), asAlways)
ensure(result, startDocEvent(), startSeqEvent(anchor=0.AnchorId),
scalarEvent("a", anchor=1.AnchorId),
scalarEvent("b", anchor=2.AnchorId), aliasEvent(1.AnchorId),
endSeqEvent(), endDocEvent())