typelevel / typelevel/cats-parse

investigate scalacheck failure 20230625T112756

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Dominant language
Scala
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Forks
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Avg merge
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Merged PRs (30d)
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Description

==> X cats.parse.ParserTest.parse between open and close with Parser this  0.146s munit.ComparisonFailException: /home/runner/work/cats-parse/cats-parse/core/shared/src/test/scala/cats/parse/ParserTest.scala:1729
1728:
1729:      assertEquals(pa.parse(str), pb.parse(str))
1730:    }
values are not the same
=> Obtained
Left(
  Error(
    0,
    NonEmptyList(
      OneOfStr(
        0,
        List(
          "BB"
        )
      ),
      Nil
    )
  )
)
=> Diff (- obtained, + expected)
       ),
-      Nil
+      List(
+        WithContext(
+          "妯堢\u1ab0塱漿\uf26fᶵ氣㮍恤",
+          OneOfStr(
+            0,
+            List(
+              "Ҝﶂ\uf3e5先\u32ca\ue7a0"
+            )
+          )
+        )
+      )
     )

Failing seed: dRxSpF-stS-6EpcFMUT-Kt9nvNqoXO4RS9F7ka860UN=
You can reproduce this failure by adding the following override to your suite:

  override val scalaCheckInitialSeed = "dRxSpF-stS-6EpcFMUT-Kt9nvNqoXO4RS9F7ka860UN="

Falsified after 1447 passed tests.
> ARG_0: GenT(Map(Str(BB),ConstFn(BB)))
> ARG_1: GenT(Map0(Prod0(Not(Str(E6V,7<uNDcO]y7+E(c+?q4TFx#gti,8euZJ3W|&XQ]to,-S`L#kUZ`kD~)),Map0(OneOf0(List(Map0(WithContextP0(妯堢᪰塱漿ᶵ氣㮍恤,Str(Ҝﶂ先㋊)),ConstFn(쒔)), Map0(GetCaret,<function1>))),<function1>)),<function1>))
> ARG_2: GenT(FailWith(䠗킜₩࢞怠톍㚩䚋窶䱪䏾먌㰅燏늃鬃ﳣ艍⳽⩟㢫ॷ⏩䏊㻀溧쪒䛛捀䕆飺ᝄ髞༙蟧屏汅⁇뜟))
> ARG_3: ""
> ARG_3_ORIGINAL: "BaB"
    at munit.ComparisonFailException.withMessage(ComparisonFailException.scala:48)

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Research direction

Reproduce the failure in core/shared/src/test/scala/cats/parse/ParserTest.scala at the assertion on line 1729, using the reported ScalaCheck seed override. Compare the obtained and expected parser results and trace the generated case. Done means the failure is understood and the affected test passes reliably.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
testing-qa
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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