mirror of https://github.com/status-im/NimYAML.git
78 lines
3.0 KiB
Nim
78 lines
3.0 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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proc escapeNewlines(s: string): string =
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result = ""
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for c in s:
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case c
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of '\l': result.add("\\n")
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of '\t': result.add("\\t")
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of '\\': result.add("\\\\")
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else: result.add(c)
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proc printDifference*(expected, actual: YamlStreamEvent) =
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if expected.kind != actual.kind:
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echo "expected " & $expected.kind & ", got " & $actual.kind
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else:
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case expected.kind
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of yamlScalar:
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if expected.scalarTag != actual.scalarTag:
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echo "[\"", actual.scalarContent, "\".tag] expected tag ",
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expected.scalarTag, ", got ", actual.scalarTag
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elif expected.scalarAnchor != actual.scalarAnchor:
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echo "[scalarEvent] expected anchor ", expected.scalarAnchor,
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", got ", actual.scalarAnchor
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elif expected.scalarContent != actual.scalarContent:
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let msg = "[scalarEvent] content mismatch!\nexpected: " &
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escapeNewlines(expected.scalarContent) &
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"\ngot : " & escapeNewlines(actual.scalarContent)
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if expected.scalarContent.len != actual.scalarContent.len:
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echo msg, "\n(length does not match)"
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else:
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for i in 0..expected.scalarContent.high:
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if expected.scalarContent[i] != actual.scalarContent[i]:
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echo msg, "\n(first different char at pos ", i, ": expected ",
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cast[int](expected.scalarContent[i]), ", got ",
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cast[int](actual.scalarContent[i]), ")"
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break
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else: echo "[scalarEvent] Unknown difference"
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of yamlStartMap:
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if expected.mapTag != actual.mapTag:
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echo "[map.tag] expected ", expected.mapTag, ", got ", actual.mapTag
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elif expected.mapAnchor != actual.mapAnchor:
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echo "[map.anchor] expected ", expected.mapAnchor, ", got ",
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actual.mapAnchor
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else: echo "[map.tag] Unknown difference"
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of yamlStartSeq:
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if expected.seqTag != actual.seqTag:
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echo "[seq.tag] expected ", expected.seqTag, ", got ", actual.seqTag
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elif expected.seqAnchor != actual.seqAnchor:
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echo "[seq.anchor] expected ", expected.seqAnchor, ", got ",
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actual.seqAnchor
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else: echo "[seq] Unknown difference"
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of yamlAlias:
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if expected.aliasTarget != actual.aliasTarget:
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echo "[alias] expected ", expected.aliasTarget, ", got ",
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actual.aliasTarget
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else: echo "[alias] Unknown difference"
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else: echo "Unknown difference in event kind " & $expected.kind
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template ensure*(input: var YamlStream,
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expected: varargs[YamlStreamEvent]) {.dirty.} =
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var i = 0
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for token in input:
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if i >= expected.len:
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echo "received more tokens than expected (next token = ", token.kind, ")"
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fail()
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break
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if token != expected[i]:
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echo "at token #" & $i & ":"
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printDifference(expected[i], token)
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fail()
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break
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i.inc() |