JuliaDiff/ChainRulesTestUtils.jl

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Utilities for testing custom AD primitives.

Stars: 50
Forks: 18
Open beginner issues: 0
Indexed issues: 64

Dominant language: Julia
License: MIT
Last GitHub push: Oct 3, 2025
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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64 open issues indexed

more `test_approx` ambiguities Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#291 · Opened Feb 28, 2025
Support MutableTangent automatically Open

mutation

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#286 · Opened Sep 18, 2023
Make replace boolean `check_inferred` with something that allows configuable small unions Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#283 · Opened May 19, 2023
Limitations of `FiniteDifferences.to_vec` for `Tangent()` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#271 · 1 comment · 2 reactions · Opened Feb 21, 2023
default test tolerances assume Float64 precision and numbers ~ 1 Open

bug good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

JuliaDiff/ChainRulesTestUtils.jl#269 · 1 comment · Opened Jan 31, 2023
ChainRulesTestUtils crashes with a custom regularization function on a Flux Dense layer Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

JuliaDiff/ChainRulesTestUtils.jl#266 · 4 comments · Opened Nov 15, 2022
`test_rrule` failed when pullback return array buffer allocated in rrule. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#264 · 1 comment · Opened Oct 21, 2022
test_rrule() fails in iterate() Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#263 · Opened Sep 25, 2022
Check for repeated unthunking Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaDiff/ChainRulesTestUtils.jl#262 · 1 reaction · Opened Aug 25, 2022
Stacktraces are hidden Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#261 · 1 comment · Opened Aug 25, 2022
Error with `Diagonal` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

JuliaDiff/ChainRulesTestUtils.jl#260 · Opened Aug 11, 2022
getting error in `FiniteDifferences.to_vec` when `test_rrule` for structured type Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#258 · 1 comment · Opened Jul 25, 2022
Cannot test rule for structure where one (non-differentiable) field cannot be vectorized Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#256 · 7 comments · Opened Jul 15, 2022
Variants of `TestConfig` offering only forward or only reverse Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#255 · 1 reaction · Opened Jul 13, 2022
rand_tangent on circular structure StackOverFlows Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#250 · Opened Jun 18, 2022
inference check failure in test_rrule, @inferred rrule works Open

JuliaDiff/ChainRulesTestUtils.jl#246 · 7 comments · 1 assignee · Opened May 3, 2022
Better error message than Dimension mismatch Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#244 · 1 reaction · Opened Feb 21, 2022
Errors from `PermutedDimsArray` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#240 · Opened Jan 25, 2022
Errors from `ReshapedArray`? Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

JuliaDiff/ChainRulesTestUtils.jl#239 · Opened Jan 25, 2022
CI failure: `derivative wrong: Test Failed` Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#235 · 1 comment · Opened Jan 19, 2022
`test_rrule` leads to `MethodError: Base.ArithmeticStyle(::Type{Union{}}) is ambiguous` Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#232 · 2 comments · 1 reaction · Opened Jan 17, 2022
`test_frule` confused about Tuples, and `Fix1` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#231 · Opened Jan 17, 2022
`test_approx` has ambiguities Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#229 · Opened Jan 15, 2022
Test `frule`s with `NotImplemented` properly Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#222 · Opened Oct 3, 2021
test_rrule(sum, iszero, ...) errors Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#219 · Opened Sep 24, 2021
Making Testing More Automatic Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaDiff/ChainRulesTestUtils.jl#213 · 6 comments · 1 reaction · Opened Sep 6, 2021
Appropriate location for Zygote rrule_via_ad example Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#211 · 5 comments · 2 reactions · Opened Aug 23, 2021
structural rand_tangent Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#209 · 2 comments · Opened Aug 15, 2021
Tests are slow: use vjvp ? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#204 · 5 comments · 1 reaction · Opened Aug 6, 2021
Tests for @non_differentiable Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

JuliaDiff/ChainRulesTestUtils.jl#202 · 2 comments · Opened Aug 1, 2021
add error message for integers that represent reals Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

JuliaDiff/ChainRulesTestUtils.jl#201 · 2 comments · 2 reactions · Opened Jul 30, 2021
stop lying about MethodErrors Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#200 · 2 reactions · Opened Jul 29, 2021
Ignoring non-differentiable elements is not applied to subfields Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#194 · 1 comment · Opened Jul 26, 2021
MethodError for frule doens't show the type of the tangent Open

bug good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#193 · 1 comment · Opened Jul 23, 2021
define `rand_tangent` for `Dict`s Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#195 · 2 reactions · Opened Jul 21, 2021
Make failure to infer a test failure rather than an error Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/ChainRulesTestUtils.jl#187 · 1 comment · 1 reaction · Opened Jul 3, 2021
test_rrule fails to handle QRCompactWY return types Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

JuliaDiff/ChainRulesTestUtils.jl#184 · 1 comment · Opened Jun 25, 2021
API testing only mode? Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

JuliaDiff/ChainRulesTestUtils.jl#181 · Opened Jun 22, 2021
rename `fkwargs` keyword argument to `primal_kwargs`? Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#179 · 5 comments · Opened Jun 17, 2021
check_equal(::NamedTuple, ::NamedTuple) doesn't check names Open

bug good first issue

Difficulty 3/5 1-2 days Newbie friendliness 38/100

JuliaDiff/ChainRulesTestUtils.jl#157 · Opened May 28, 2021
code snippet in readme Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

JuliaDiff/ChainRulesTestUtils.jl#148 · 1 reaction · Opened May 12, 2021
use DocThemeIndigo Open

documentation good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

JuliaDiff/ChainRulesTestUtils.jl#143 · Opened May 4, 2021
Helper for non-differentiable stuff Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaDiff/ChainRulesTestUtils.jl#138 · Opened Apr 17, 2021
Add function for checking modules for type piracy, ambiguities, etc in defined rules Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#127 · 1 comment · 2 reactions · Opened Mar 23, 2021
Should we generate AbstractArray rand_tangent for all AbstractArray subtypes? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#198 · 1 comment · 3 reactions · Opened Mar 8, 2021
Test Linearity Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/ChainRulesTestUtils.jl#120 · 2 comments · 1 reaction · Opened Feb 19, 2021
test_rrule bug? Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#119 · 3 comments · Opened Feb 18, 2021
check_equal for DoesNotExist Open

good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

JuliaDiff/ChainRulesTestUtils.jl#109 · 1 comment · Opened Jan 19, 2021
Better error message when using `test_scalar` for functions with multiple outputs Open

documentation good first issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/ChainRulesTestUtils.jl#106 · Opened Jan 15, 2021
Test functions with constraints on arguments Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

JuliaDiff/ChainRulesTestUtils.jl#99 · 1 comment · Opened Jan 2, 2021

JuliaDiff/ChainRulesTestUtils.jl

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