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58282547f6
* refs #6583 fix nim doc output * changelog * change default for outDir when unspecified * cleanups * --project implies --index
37 lines
1.3 KiB
Nim
37 lines
1.3 KiB
Nim
proc mismatch*[T](lhs: T, rhs: T): string =
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## Simplified version of `unittest.require` that satisfies a common use case,
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## while avoiding pulling too many dependencies. On failure, diagnostic
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## information is provided that in particular makes it easy to spot
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## whitespace mismatches and where the mismatch is.
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proc replaceInvisible(s: string): string =
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for a in s:
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case a
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of '\n': result.add "\\n\n"
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else: result.add a
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proc quoted(s: string): string = result.addQuoted s
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result.add "\n"
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result.add "lhs:{" & replaceInvisible(
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$lhs) & "}\nrhs:{" & replaceInvisible($rhs) & "}\n"
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when compiles(lhs.len):
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if lhs.len != rhs.len:
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result.add "lhs.len: " & $lhs.len & " rhs.len: " & $rhs.len & "\n"
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when compiles(lhs[0]):
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var i = 0
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while i < lhs.len and i < rhs.len:
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if lhs[i] != rhs[i]: break
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i.inc
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result.add "first mismatch index: " & $i & "\n"
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if i < lhs.len and i < rhs.len:
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result.add "lhs[i]: {" & quoted($lhs[i]) & "}\nrhs[i]: {" & quoted(
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$rhs[i]) & "}\n"
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result.add "lhs[0..<i]:{" & replaceInvisible($lhs[
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0..<i]) & "}"
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proc assertEquals*[T](lhs: T, rhs: T, msg = "") =
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when false: # can be useful for debugging to see all that's fed to this.
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echo "----" & $lhs
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if lhs!=rhs:
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doAssert false, mismatch(lhs, rhs) & "\n" & msg
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