JuliaLang/julia

Confusing test failure display for KeySet

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#40,188 opened on Mar 25, 2021

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display and printinggood first issue

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Description

Julia 1.6.0-rc3

runtests.jl:

using Test

d = Dict("hello" => "world")
@test keys(d) == ["hello"]

Test output:

     Testing Running tests...
Test Failed at /Users/fons/Documents/Pluto.jl/test/runtests.jl:4
  Expression: keys(d) == ["hello"]
   Evaluated: ["hello"] == ["hello"]
ERROR: LoadError: There was an error during testing
in expression starting at /Users/fons/Documents/Pluto.jl/test/runtests.jl:4

Contributor guide

Research direction
Investigate the display and equality of KeySet in Julia's test framework. Trace the code path for @test macro and how it evaluates and displays comparisons involving KeySet.
Tech stack
None
Domain
testing
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitJulia
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60