elm-explorations/test

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Write unit and fuzz tests for Elm code.

Stars: 244
Forks: 40
Open beginner issues: 0
Indexed issues: 83
Avg merge: 1d 23h
Merged PRs (30d): 2

Dominant language: Elm
License: BSD-3-Clause
Last GitHub push: Aug 24, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

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83 open issues indexed

Hash fuzzed input to detect duplicates? Open

Design Question fuzzers

elm-explorations/test#11 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
“Maximum call stack size exceeded” on comparison of large data structures Open

elm-explorations/test#22 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
usesFloat incorrectly identifies union type as a float Open

elm-explorations/test#23 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Anything with Browser.Navigation.Key cannot be tested Open

elm-explorations/test#24 · 23 comments · 23 reactions · 0 assignees · Indexed Sep 15, 2026
Maximum call stack size exceeded with Test.fuzz2 Open

fixed-by-v2

elm-explorations/test#25 · 19 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Need exclusive range fuzzers Open

elm-explorations/test#27 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How to make "negative" fuzzers? Open

fuzzers question

elm-explorations/test#32 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve Expect.equal's diff display Open

elm-explorations/test#38 · 10 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Add documentation from elm-html-test Open

docs good first issue

elm-explorations/test#51 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Simulate event bubbling? Open

Design Question

elm-explorations/test#60 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Test Cmd Open

elm-explorations/test#62 · 1 comment · 5 reactions · 0 assignees · Indexed Sep 15, 2026
Any way to test the result of a Fuzz.maybe or force a Just? Open

fuzzers question

elm-explorations/test#63 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Fuzz.int generates values outside of Int32 range Open

Design Question fuzzers

elm-explorations/test#70 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Testing any value containing a Process.Id Open

elm-explorations/test#72 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Query.has and Query.hasNot seem to query children as well Open

bug html

elm-explorations/test#74 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Html test fails (possibly due to lazy containing keyed node containing lazy?) Open

bug html

elm-explorations/test#78 · 9 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add the ability to query for keyed nodes Open

html

elm-explorations/test#83 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Tests don't run if module name doesn't match file name Open

elm-explorations/test#85 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Unconditional failing when Floats equality is asserted breaks Elm Verify Examples Open

Design Question

elm-explorations/test#88 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Idea: Use `Range` to create (some) Fuzzers Open

elm-explorations/test#89 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Idea: Better `Char` and `String` Fuzzers Open

Design Question fuzzers

elm-explorations/test#90 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
FuzzTest.whitespaceTest never runs, and fails if it's added. Open

elm-explorations/test#91 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add option to filter tests Open

elm-explorations/test#93 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Query for and/or assert that an element has a named Attribute regardless of its value Open

elm-explorations/test#95 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Move the name parameter to the first place in all `fuzz` functions Open

Design Question major release blocker

elm-explorations/test#97 · 4 comments · 4 reactions · 0 assignees · Indexed Sep 15, 2026
It should be easier to fuzz nested data structures. Open

elm-explorations/test#100 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Example of Shrink.map usage does not type Open

docs

elm-explorations/test#101 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Test failed due to TypeError Open

elm-explorations/test#105 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve diff output Open

help wanted

elm-explorations/test#107 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
"Contains multiple tests named myFirstTest" error Open

elm-explorations/test#108 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Problem on render Query.fromHtml with (/=) Open

elm-explorations/test#110 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Expect.contains* family of functions Open

expectations

elm-explorations/test#112 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Broken links in Test docs Open

elm-explorations/test#117 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Warn when Test.only is being used, even if there are failing tests Open

elm-explorations/test#120 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Read file from tests Open

elm-explorations/test#121 · 11 comments · 6 reactions · 0 assignees · Indexed Sep 15, 2026
Yet another Maximum call stack size exceeded error (with Expect.equalLists) Open

elm-explorations/test#123 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support nested `Test.only` Open

elm-explorations/test#128 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Test.Html.Query.has wrongfully returns a failed expectation even when the clauses in the Selector are there Open

elm-explorations/test#134 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Exessive run time on simple test case Open

elm-explorations/test#135 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Query against discrete strings Open

elm-explorations/test#137 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
fuzz floatRange throws "RangeError: Maximum call stack size exceeded" Open

elm-explorations/test#142 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Enable test runners to produce structured diff Open

elm-explorations/test#147 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Feature request: Add line number and input value to output for failed tests Open

elm-explorations/test#152 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
capture Debug.log and present it with a failing test Open

elm-explorations/test#154 · 4 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
Display number of skipped tests Open

elm-explorations/test#161 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Show the stack trace in case of caught exceptions Open

elm-explorations/test#169 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Using `hasNot` with `find` passes when it should fail Open

bug html

elm-explorations/test#176 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Request: include skipped tests in the test list sent to reporters Open

elm-explorations/test#179 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Optionally report stats about fuzz tests (generation, shrinking, rejections) Open

elm-explorations/test#184 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Query.find returns different results based on selector order Open

elm-explorations/test#185 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

elm-explorations/test

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