stretchr/testify

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A toolkit with common assertions and mocks that plays nicely with the standard library

Stars: 26.2k
Forks: 1.9k
Open beginner issues: 1
Indexed issues: 232
Avg merge: 2d 4h
Merged PRs (30d): 2

Dominant language: Go
License: MIT
Last GitHub push: Sep 2, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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232 open issues indexed

mock: avoid copying call history in AssertNumberOfCalls Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

stretchr/testify#1957 · Opened Sep 5, 2026
assert.Empty regression in v1.11.0: a pointer to an interface is never empty Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

stretchr/testify#1955 · 1 comment · Opened Sep 4, 2026
mock.Call.Time documentation incomplete Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 88/100

stretchr/testify#1947 · 1 comment · Opened Aug 31, 2026
mock: mock.Anything still works backwards Open

bug

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

stretchr/testify#1943 · 1 comment · Opened Aug 24, 2026
Add ErrorNotContains assertion Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

stretchr/testify#1940 · 3 comments · 1 reaction · Opened Aug 21, 2026
`EqualExportedValues` overflow the stack on recursive data structures Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 68/100

stretchr/testify#1915 · 2 comments · Opened Jun 23, 2026
chores: retract module github.com/stretchrcom/testify Open

internal/cleanup

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

stretchr/testify#1892 · 10 comments · Opened May 15, 2026
Proposal: Global setting of context/size for `GetUnifiedDiffString` Open

enhancement enhancement: output format

Difficulty 4/5 3-5 days Newbie friendliness 52/100

stretchr/testify#1878 · 7 comments · 1 reaction · Opened May 1, 2026
How to deal with functions that expect a `testing.TB` when using `assert.EventuallyWithT` Open

assert.Eventually Breaking Change question

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

stretchr/testify#1862 · 6 comments · Opened Mar 13, 2026
assert.ErrorAsType: new assertion for Go 1.27+ Open

enhancement generics pkg-assert

Difficulty 3/5 1-2 days Newbie friendliness 68/100

stretchr/testify#1860 · 2 comments · Opened Mar 12, 2026
mock: replace objx.Map with our own mock.TestData type to drop objx Open

dependencies pkg-mock

stretchr/testify#1852 · 3 comments · 2 reactions · 1 assignee · Opened Feb 17, 2026
assert.InEpsilon float Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

stretchr/testify#1839 · 2 comments · Opened Dec 17, 2025
suite: make compatible with synctest Open

concurrency enhancement pkg-suite

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stretchr/testify#1836 · 2 comments · 2 reactions · Opened Dec 4, 2025
EventuallyWithTf function help is incorrect, misleading callback signature Open

assert.Eventually

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

stretchr/testify#1833 · 1 comment · 1 reaction · Opened Nov 25, 2025
NewFoo(t TestingT): Not documented Open

question rejected/invalid

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

stretchr/testify#1832 · 1 comment · 1 reaction · Opened Nov 25, 2025
assert.Equal panic on diff unexported map with array as key Open

bug

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

stretchr/testify#1813 · 5 comments · Opened Oct 17, 2025
Create a spy equivalent to mock Open

enhancement pkg-mock

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

stretchr/testify#1811 · 1 comment · Opened Oct 15, 2025
`Eventually` hangs on failed/aborted `condition` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

stretchr/testify#1810 · Opened Oct 14, 2025
IsType is inconvenient to use, should be generic Open

enhancement generics pkg-assert pkg-require

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

stretchr/testify#1805 · 2 reactions · Opened Oct 2, 2025
assert.Len: avoid printing the value of very large objects Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

stretchr/testify#1801 · 4 comments · 1 reaction · Opened Sep 19, 2025
assert.Regexp: Document allowed rx argument values #268 Open

documentation pkg-assert

Difficulty 1/5 1-3 hours Newbie friendliness 74/100

stretchr/testify#1793 · 1 comment · Opened Sep 15, 2025
suite: Skipping a test in BeforeTest prevents test execution but not AfterTest Open

bug documentation pkg-suite

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

stretchr/testify#1781 · 8 comments · Opened Aug 24, 2025
require: invalid examples from doc comments as functions don't return bool Open

bug documentation good first issue

stretchr/testify#1776 · 8 comments · 1 reaction · 1 assignee · Opened Aug 4, 2025
`NeverWithT` for using assertions inside `Never` Open

enhancement

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

stretchr/testify#1774 · 3 comments · 1 reaction · Opened Jul 24, 2025
document that encoding/json omitzero/IsZero is not about assert.IsZero/reflect.Zero Open

documentation enhancement pkg-assert

stretchr/testify#1759 · 3 comments · 1 assignee · Opened Jun 1, 2025
mock: Mock.MethodCalled should not call methods of arguments Open

bug concurrency concurreny/deadlock mock.ArgumentMatcher pkg-mock

Difficulty 4/5 3-5 days Newbie friendliness 48/100

stretchr/testify#1719 · 2 comments · 1 reaction · Opened Mar 25, 2025
Mock.IsMethodCallable doesn't work with dynamic expected arguments Open

bug pkg-mock

stretchr/testify#1712 · 2 comments · 1 assignee · Opened Mar 22, 2025
CallerInfo does not respect t.Helper() calls. Open

bug pkg-assert TB.Helper

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stretchr/testify#1702 · 9 comments · 1 reaction · Opened Mar 7, 2025
Add func similar to `AssertExpectations` which does not fail the test Open

enhancement

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

stretchr/testify#1700 · 2 comments · 2 reactions · Opened Feb 28, 2025
assert.EqualValues is not panic-safe Open

assert.EqualValues enhancement pkg-assert

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

stretchr/testify#1699 · 1 reaction · Opened Feb 13, 2025
mock: add interface for type based definition of `match` when diffing mock arguments Open

enhancement mock.ArgumentMatcher pkg-mock

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

stretchr/testify#1695 · 3 comments · 7 reactions · Opened Jan 15, 2025
Inconsistent nature of `messageFromMsgAndArgs` Open

enhancement

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

stretchr/testify#1679 · 7 comments · Opened Nov 13, 2024
Never: unexpectedly succeeds if timeout reached before condition returns Open

assert.Eventually bug pkg-assert

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

stretchr/testify#1654 · 1 comment · Opened Oct 4, 2024
assert.Eventually can fail having never run condition Open

assert.Eventually bug pkg-assert

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

stretchr/testify#1652 · 2 comments · Opened Oct 4, 2024
assert.Equal show only diff Open

enhancement enhancement: output format pkg-assert

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stretchr/testify#1628 · 3 comments · 1 reaction · Opened Jul 23, 2024
assert: Eventually should not leak a goroutine Open

assert.Eventually bug pkg-assert

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

stretchr/testify#1611 · 13 comments · Opened Jun 13, 2024
call.Unset() panics when call := mockObj.On("Foo", mock.AnythingOfType("foo")) Open

bug pkg-mock wontfix

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

stretchr/testify#1599 · 4 comments · Opened May 17, 2024
mock: Diff is prone to data races Open

bug concurrency mock.ArgumentMatcher pkg-mock

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

stretchr/testify#1597 · 7 comments · 11 reactions · Opened May 14, 2024
EqualExportedValues can compare two slices Open

assert.EqualValues enhancement pkg-assert

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

stretchr/testify#1584 · 3 comments · 8 reactions · Opened Apr 11, 2024
mock: cleanup argument matching API Open

enhancement mock.ArgumentMatcher pkg-mock

stretchr/testify#1578 · 7 comments · 2 assignees · Opened Mar 18, 2024
assert.EqualValues: v1.9.0 breaks float comparisons Open

assert.EqualValues bug floatting point pkg-assert

Difficulty 3/5 1-2 days Newbie friendliness 64/100

stretchr/testify#1576 · 13 comments · 2 reactions · Opened Mar 11, 2024
mock: AnythingOfType is marked deprecated on pkgsite Open

bug pkg-mock

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

stretchr/testify#1573 · 1 comment · 1 reaction · Opened Mar 8, 2024
mock: Call.NotBefore still expects calls removed with Call.Unset Open

bug pkg-mock

stretchr/testify#1542 · 6 comments · 1 assignee · Opened Feb 20, 2024
Allow user to skip (ignore) specific caller frames in assert.CallerInfo() Open

enhancement pkg-assert TB.Helper

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

stretchr/testify#1527 · 4 comments · Opened Jan 30, 2024
Proposal: guard or support comparing with untyped nil Open

assert.EqualValues pkg-assert

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

stretchr/testify#1524 · 5 comments · Opened Jan 12, 2024
Support colorized output, indentation in accordance with subtest depth, and one more assertion Open

enhancement enhancement: colored output enhancement: output format pkg-assert pkg-require

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

stretchr/testify#1509 · 3 comments · Opened Nov 16, 2023
Detect and fail on `require.*` methods called from a wrong goroutine Open

Breaking Change concurrency enhancement pkg-require

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

stretchr/testify#1499 · 5 comments · Opened Oct 31, 2023
proposal: new assertion`InEpsilonMapValues` Open

assert.InEpsilon enhancement pkg-assert

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

stretchr/testify#1497 · 3 comments · Opened Oct 29, 2023
proposal: analogue of `InDeltaMapValues` with different deltas Open

help wanted

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

stretchr/testify#1496 · 3 comments · Opened Oct 29, 2023
assert: accept values with named types in `InDelta*`, `InEpsilon*` Open

assert.InEpsilon enhancement pkg-assert pkg-require

stretchr/testify#1492 · 2 comments · 2 assignees · Opened Oct 25, 2023

stretchr/testify

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