mirror of https://github.com/status-im/NimYAML.git
73 lines
3.2 KiB
Nim
73 lines
3.2 KiB
Nim
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import "../yaml"
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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] expected content \"" &
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expected.scalarContent & "\", got \"" &
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actual.scalarContent & "\" "
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if expected.scalarContent.len != actual.scalarContent.len:
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echo msg, "(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, "(first different char at pos ", i,
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": expected ",
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cast[int](expected.scalarContent[i]),
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", got ",
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cast[int](actual.scalarContent[i]), ")"
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break
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else:
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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 ",
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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:
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echo "[map.tag] Unknown difference"
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of yamlStartSequence:
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if expected.seqTag != actual.seqTag:
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echo "[seq.tag] expected ", expected.seqTag, ", got ",
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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:
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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:
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echo "[alias] Unknown difference"
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else:
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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 = ",
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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()
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