github.com/stretchr/testify

v1.12.1 #85 most downloaded on Go modules stretchr/testify

What this package is like to depend on

Last release 3 days ago

20 Aug 2026

Release timing varies

gaps range from 8 days to 3 months

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notes for 9 of 30 stable releases

Nothing withdrawn

no release was ever pulled

14 years old

951 releases · first in 2012

52 releases in the last 12 months

see the full history below

Release timeline

951 releases · Oct 2012 to Aug 2026

2013 2015 2017 2019 2021 2023 2025

Release Pre-release

Releases

latest 60 of 951

v1.12.2-0.20260820143810-c627960a7323 20 Aug 2026 pre-release

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v1.12.1 17 Aug 2026
Release notes
This is the first release which has the minimum dependencies practical in testify v1. The last remaining dependencies are github.com/stretchr/objx which itself has no dependencies, and go.yaml.in/yaml/v3. Removing objx would require v2, it cannot be vendored. Removing YAML would require vendoring the yaml library, which would do more harm than good. It's better to become aware of vulnerabilities in the official yaml package than to attempt to maintain our own.

What's Changed
- Change yaml library to go.yaml.in/yaml/v3 by @harryzcy in #1935
- change yaml library to go.yaml.in/yaml/v3 by @boekkooi-impossiblecloud in #1772
New Contributors
- @harryzcy made their first contribution in #1935
- @boekkooi-impossiblecloud made their first contribution in #1772
Full Changelog: v1.12.0...v1.12.1

What's Changed
- Change yaml library to go.yaml.in/yaml/v3 by @harryzcy in #1935
- change yaml library to go.yaml.in/yaml/v3 by @boekkooi-impossiblecloud in #1772
New Contributors
- @harryzcy made their first contribution in #1935
- @boekkooi-impossiblecloud made their first contribution in #1772
Full Changelog: v1.12.0...v1.12.1
Open source →
v1.12.1-0.20260817082405-959dbdacf153 17 Aug 2026 pre-release

Nothing published for this version
v1.12.0 10 Jun 2026
Release notes
What's Changed

Functional Changes
- assert: make *AssertionFunc types just aliases by @dolmen in #1563
Fixes
- mock: avoid panic when expected type is nil in Arguments.Diff by @mutaiib in #1775
- mock: revert to pre-v1.11.0 argument matching behavior for mutating stringers by @brackendawson in #1786
- suite: validate method signatures and continue execution for valid tests by @vyas-git in #1665
- assert.PanicsWithError: report error message by @olivergondza in #1400
- assert: IsIncreasing et al can return false w/out failing by @brackendawson in #1787
- add type to error message of assert.Same by @egawata in #1792
- mock.AssertExpectationsForObjects fix panic with wrong testObject type. by @brackendawson in #1795
- assert: truncate very long objects in test failure messages by @brackendawson in #1646
- assert: fix NotSubset error messages using %#v instead of %q (fixes #1800) by @nghiack7 in #1888
- suite: prevent panic when SetupTest skips with HandleStats by @blackwell-systems in #1877
Documentation, Build & CI
- CI: test also with Go 1.23 by @dolmen in #1783
- Vendor unmaintained github.com/pmezard/go-difflib by @brackendawson in #1708
- Promote ccoVeille to maintainer by @brackendawson in #1784
- build(deps): bump actions/setup-go from 5 to 6 by @dependabot[bot] in #1790
- assert.YAMLEq: Document mutlidoc behavior by @brackendawson in #1791
- _codegen: copy dependency github.com/ernesto-jimenez/gogen/imports by @dolmen in #1782
- doc: remove ineffective inline code blocks by @brackendawson in #1714
- Tag generated assertions as non-generated in new .gitattributes by @ubunatic in #1815
- chore: vendor go-spew from https://github.com/davecgh/go-spew by @ccoVeille in #1827
- require: fix godoc generation for assertions returning a bool by @Baxromumarov in #1850
- docs(require): correct example usage to use assert.CollectT (require.CollectT does not exist) by @a2not in #1821
- docs: Fix EventuallyWithTf documentation with proper placement of formatting arguments by @a2not in #1842
- EMERITUS.md: add @tylerb by @dolmen in #1812
- CI: test also with Go 1.24 by @alexandear in #1856
- deps: bump objx to v0.5.3 and remove dependency cycle issue by @ccoVeille in #1823
- CI: upgrade GitHub Actions and pin hashes by @SuperQ in #1883
- CI: add _readme-gofmt tool to reformat Go code in README by @dolmen in #1889
- CI: add check of GitHub Action pinned hashes against tag by @dolmen in #1885
- _codegen: modernize by @dolmen in #1890
- build(deps): bump actions/checkout from 6.0.2 to 6.0.3 by @dependabot[bot] in #1906
- mock: Mock.Return does not exist anymore by @Kentzo in #1905
New Contributors
- @mutaiib made their first contribution in #1775
- @vyas-git made their first contribution in #1665
- @olivergondza made their first contribution in #1400
- @egawata made their first contribution in #1792
- @ubunatic made their first contribution in #1815
- @Baxromumarov made their first contribution in #1850
- @a2not made their first contribution in #1821
- @nghiack7 made their first contribution in #1888
- @blackwell-systems made their first contribution in #1877
- @Kentzo made their first contribution in #1905
Full Changelog: v1.11.0...v1.12.0

What's Changed
- mock: avoid panic when expected type is nil in Arguments.Diff by @mutaiib in #1775
- CI: test also with Go 1.23 by @dolmen in #1783
- mock: revert to pre-v1.11.0 argument matching behavior for mutating stringers by @brackendawson in #1786
- suite: validate method signatures and continue execution for valid tests by @vyas-git in #1665
- Vendor unmaintained github.com/pmezard/go-difflib by @brackendawson in #1708
- Promote ccoVeille to maintainer by @brackendawson in #1784
- build(deps): bump actions/setup-go from 5 to 6 by @dependabot[bot] in #1790
- assert.PanicsWithError: report error message by @olivergondza in #1400
- assert: IsIncreasing et al can return false w/out failing by @brackendawson in #1787
- add type to error message of assert.Same by @egawata in #1792
- assert.YAMLEq: Document mutlidoc behavior by @brackendawson in #1791
- mock.AssertExpectationsForObjects fix panic with wrong testObject type. by @brackendawson in #1795
- _codegen: copy dependency github.com/ernesto-jimenez/gogen/imports by @dolmen in #1782
- assert: truncate very long objects in test failure messages by @brackendawson in #1646
- doc: remove ineffective inline code blocks by @brackendawson in #1714
- Tag generated assertions as non-generated in new .gitattributes by @ubunatic in #1815
- chore: vendor go-spew from https://github.com/davecgh/go-spew by @ccoVeille in #1827
- require: fix godoc generation for assertions returning a bool by @Baxromumarov in #1850
- docs(require): correct example usage to use assert.CollectT (require.CollectT does not exist) by @a2not in #1821
- docs: Fix EventuallyWithTf documentation with proper placement of formatting arguments by @a2not in #1842
- EMERITUS.md: add @tylerb by @dolmen in #1812
- CI: test also with Go 1.24 by @alexandear in #1856
- deps: bump objx to v0.5.3 and remove dependency cycle issue by @ccoVeille in #1823
- CI: upgrade GitHub Actions and pin hashes by @SuperQ in #1883
- assert: fix NotSubset error messages using %#v instead of %q (fixes #1800) by @nghiack7 in #1888
- suite: prevent panic when SetupTest skips with HandleStats by @blackwell-systems in #1877
- CI: add _readme-gofmt tool to reformat Go code in README by @dolmen in #1889
- CI: add check of GitHub Action pinned hashes against tag by @dolmen in #1885
- _codegen: modernize by @dolmen in #1890
- assert: make *AssertionFunc types just aliases by @dolmen in #1563
- build(deps): bump actions/checkout from 6.0.2 to 6.0.3 by @dependabot[bot] in #1906
- mock: Mock.Return does not exist anymore by @Kentzo in #1905
New Contributors
- @mutaiib made their first contribution in #1775
- @vyas-git made their first contribution in #1665
- @olivergondza made their first contribution in #1400
- @egawata made their first contribution in #1792
- @ubunatic made their first contribution in #1815
- @Baxromumarov made their first contribution in #1850
- @a2not made their first contribution in #1821
- @nghiack7 made their first contribution in #1888
- @blackwell-systems made their first contribution in #1877
- @Kentzo made their first contribution in #1905
Full Changelog: v1.11.0...v1.12.0
Open source →
v1.11.1 27 Aug 2025
Release notes
This release fixes #1785 introduced in v1.11.0 where expected argument values implementing the stringer interface (String() string) with a method which mutates their value, when passed to mock.Mock.On (m.On("Method", <expected>).Return()) or actual argument values passed to mock.Mock.Called may no longer match one another where they previously did match. The behaviour prior to v1.11.0 where the stringer is always called is restored. Future testify releases may not call the stringer method at all in this case.

What's Changed
- Backport #1786 to release/1.11: mock: revert to pre-v1.11.0 argument matching behavior for mutating stringers by @brackendawson in #1788
Full Changelog: v1.11.0...v1.11.1
Open source →
v1.11.1-0.20260610141043-001eb7946baf 10 Jun 2026 pre-release

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v1.11.1-0.20260515015452-12f8b5612e12 15 May 2026 pre-release

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v1.11.1-0.20260513134753-dc20f419863a 13 May 2026 pre-release

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v1.11.1-0.20260511152800-37a3cb7cc084 11 May 2026 pre-release

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v1.11.1-0.20260507153116-c920f8006d65 07 May 2026 pre-release

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v1.11.1-0.20260506081252-d75b7070920f 06 May 2026 pre-release

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v1.11.1-0.20260304064832-5f80e4aef7be 04 Mar 2026 pre-release

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v1.11.1-0.20260225135613-b13d7e38ac61 25 Feb 2026 pre-release

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v1.11.1-0.20260223190237-c7007d3defa0 23 Feb 2026 pre-release

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v1.11.1-0.20260217151418-101072d18a7d 17 Feb 2026 pre-release

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v1.11.1-0.20251128102321-65697cefca1d 28 Nov 2025 pre-release

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v1.11.1-0.20251022131221-429ee0b8f4ef 22 Oct 2025 pre-release

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v1.11.1-0.20250919115354-feb1324bc3d0 19 Sep 2025 pre-release

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v1.11.1-0.20250919114251-49bcd2ad6723 19 Sep 2025 pre-release

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v1.11.1-0.20250916131232-6c30310a8d0c 16 Sep 2025 pre-release

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v1.11.1-0.20250915125144-a0ac157f0b1f 15 Sep 2025 pre-release

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v1.11.1-0.20250913203643-5fa984a7595b 13 Sep 2025 pre-release

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v1.11.1-0.20250912062812-b9167dae6580 12 Sep 2025 pre-release

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v1.11.1-0.20250911163653-f03d03715242 11 Sep 2025 pre-release

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v1.11.1-0.20250910065339-b5a0821dcb51 10 Sep 2025 pre-release

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v1.11.1-0.20250909071446-cbd8483e6261 09 Sep 2025 pre-release

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v1.11.1-0.20250909061828-5afd74fb37ea 09 Sep 2025 pre-release

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v1.11.1-0.20250901062747-a87733af7111 01 Sep 2025 pre-release

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v1.11.1-0.20250831184432-38d9e83f5afa 31 Aug 2025 pre-release

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v1.11.1-0.20250829151237-ce48cb33eae0 29 Aug 2025 pre-release

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v1.11.1-0.20250829091646-e8daaaca9cd5 29 Aug 2025 pre-release

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v1.11.1-0.20250827103133-c952903e9f73 27 Aug 2025 pre-release

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v1.11.1-0.20250825141246-f4f5960503ab 25 Aug 2025 pre-release

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v1.11.1-0.20250825140554-af161709418f 25 Aug 2025 pre-release

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v1.11.1-0.20250825121340-580d80711200 25 Aug 2025 pre-release

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v1.11.1-0.20250818193004-e581b36d7b36 18 Aug 2025 pre-release

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v1.11.1-0.20250818160815-b9a23f4b6a88 18 Aug 2025 pre-release

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v1.11.1-0.20250818160815-8976267da7c4 18 Aug 2025 pre-release

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v1.11.0 17 Aug 2025
Release notes
What's Changed

Functional Changes

v1.11.0 Includes a number of performance improvements.
- Call stack perf change for CallerInfo by @mikeauclair in #1614
- Lazily render mock diff output on successful match by @mikeauclair in #1615
- assert: check early in Eventually, EventuallyWithT, and Never by @cszczepaniak in #1427
- assert: add IsNotType by @bartventer in #1730
- assert.JSONEq: shortcut if same strings by @dolmen in #1754
- assert.YAMLEq: shortcut if same strings by @dolmen in #1755
- assert: faster and simpler isEmpty using reflect.Value.IsZero by @dolmen in #1761
- suite: faster methods filtering (internal refactor) by @dolmen in #1758
Fixes
- assert.ErrorAs: log target type by @craig65535 in #1345
- Fix failure message formatting for Positive and Negative asserts in #1062
- Improve ErrorIs message when error is nil but an error was expected by @tsioftas in #1681
- fix Subset/NotSubset when calling with mixed input types by @siliconbrain in #1729
- Improve ErrorAs failure message when error is nil by @ccoVeille in #1734
- mock.AssertNumberOfCalls: improve error msg by @3scalation in #1743
Documentation, Build & CI
- docs: Fix typo in README by @alexandear in #1688
- Replace deprecated io/ioutil with io and os by @alexandear in #1684
- Document consequences of calling t.FailNow() by @greg0ire in #1710
- chore: update docs for Unset #1621 by @techfg in #1709
- README: apply gofmt to examples by @alexandear in #1687
- refactor: use %q and %T to simplify fmt.Sprintf by @alexandear in #1674
- Propose Christophe Colombier (ccoVeille) as approver by @brackendawson in #1716
- Update documentation for the Error function in assert or require package by @architagr in #1675
- assert: remove deprecated build constraints by @alexandear in #1671
- assert: apply gofumpt to internal test suite by @ccoVeille in #1739
- CI: fix shebang in .ci.*.sh scripts by @dolmen in #1746
- assert,require: enable parallel testing on (almost) all top tests by @dolmen in #1747
- suite.Passed: add one more status test report by @Ararsa-Derese in #1706
- Add Helper() method in internal mocks and assert.CollectT by @dolmen in #1423
- assert.Same/NotSame: improve usage of Sprintf by @ccoVeille in #1742
- mock: enable parallel testing on internal testsuite by @dolmen in #1756
- suite: cleanup use of 'testing' internals at runtime by @dolmen in #1751
- assert: check test failure message for Empty and NotEmpty by @ccoVeille in #1745
- deps: fix dependency cycle with objx (again) by @dolmen in #1567
- assert.Empty: comprehensive doc of "Empty"-ness rules by @dolmen in #1753
- doc: improve godoc of top level 'testify' package by @dolmen in #1760
- assert.ErrorAs: simplify retrieving the type name by @ccoVeille in #1740
- assert.EqualValues: improve test coverage to 100% by @dolmen in #1763
- suite.Run: simplify running of Setup/TeardownSuite by @renzoarreaza in #1769
- assert.CallerInfo: micro optimization by using LastIndexByte by @dolmen in #1767
- assert.CallerInfo: micro cleanup by @dolmen in #1768
- assert: refactor TestFileExists and TestDirExists tests to enable parallel testing by @dolmen in #1766
- suite.Run: refactor handling of stats for improved readability by @dolmen in #1764
- tests: improve captureTestingT helper by @ccoVeille in #1741
- build(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in #1778
New Contributors
- @greg0ire made their first contribution in #1710
- @techfg made their first contribution in #1709
- @mikeauclair made their first contribution in #1614
- @cszczepaniak made their first contribution in #1427
- @architagr made their first contribution in #1675
- @tsioftas made their first contribution in #1681
- @siliconbrain made their first contribution in #1729
- @bartventer made their first contribution in #1730
- @Ararsa-Derese made their first contribution in #1706
- @renzoarreaza made their first contribution in #1769
- @3scalation made their first contribution in #1743
Full Changelog: v1.10.0...v1.11.0
Open source →
v1.10.1-0.20250818193004-e581b36d7b36 18 Aug 2025 pre-release

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v1.10.1-0.20250817155751-b7801fbf5cd5 17 Aug 2025 pre-release

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v1.10.1-0.20250701074529-a53be35c3b0c 01 Jul 2025 pre-release

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v1.10.1-0.20250630161813-aafb604176db 30 Jun 2025 pre-release

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v1.10.1-0.20250630161345-929a2126c270 30 Jun 2025 pre-release

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v1.10.1-0.20250630160624-87101a6e4a58 30 Jun 2025 pre-release

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v1.10.1-0.20250620081022-5c949551ee96 20 Jun 2025 pre-release

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v1.10.1-0.20250619081800-b50b016f5259 19 Jun 2025 pre-release

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v1.10.1-0.20250616142133-7c2bbf9ebc94 16 Jun 2025 pre-release

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v1.10.1-0.20250604180040-7127b6099902 04 Jun 2025 pre-release

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v1.10.1-0.20250604111530-26b02e2f383f 04 Jun 2025 pre-release

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v1.10.1-0.20250603130406-7bcd66c6d684 03 Jun 2025 pre-release

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v1.10.1-0.20250603095319-7a1b408b7ce1 03 Jun 2025 pre-release

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v1.10.1-0.20250602221108-c519b7942b86 02 Jun 2025 pre-release

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v1.10.1-0.20250602150025-5d95b18ab536 02 Jun 2025 pre-release

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v1.10.1-0.20250601213923-553e822bab70 01 Jun 2025 pre-release

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v1.10.1-0.20250601213922-250eaa5e06e4 01 Jun 2025 pre-release

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v1.10.1-0.20250531124810-a5d5c3395e07 31 May 2025 pre-release

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v1.10.1-0.20250530152203-0ff4bb43de0b 30 May 2025 pre-release

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v1.10.1-0.20250530140810-4f71159ca8c6 30 May 2025 pre-release

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v1.10.1-0.20250527214248-3c1541a3b402 27 May 2025 pre-release

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github.com/stretchr/testify

What this package is like to depend on

Release timeline

Releases

What's Changed

New Contributors

What's Changed

New Contributors

What's Changed

Functional Changes

Fixes

Documentation, Build & CI

New Contributors

What's Changed

New Contributors

What's Changed

What's Changed

Functional Changes

Fixes

Documentation, Build & CI

New Contributors

Every package, every release, already written down.