- feat(check)!: accept string or []byte in JSON.
- chore: bump go version from 1.25 to 1.26.
- docs: fix grammar, punctuation, and article usage in comments.
- chore: bump go version from 1.24 to 1.25.
- chore: bump copyright year to 2026 and apply module check fixes.
- docs: fix documentation and sync README examples with Example functions.
- docs(README): rewrite root README.
- fix(dump): prevent panic on unexported error-typed fields.
- doc: Improve documentation.
- feat!: Make
check.SameTypeandassert.SameTypegeneric, returning typed value.
- feat: Add
goldy.Createfunction creating new empty golden file.
- feat: Introduce
dump.ValCannotPrintfor cases when value cannot be printed. - feat!: Remove testcases.ZenValue.IsWrappedNil field.
- doc: Update documentation.
- fix: When finding methods, do not consider methods that were already called the expected number of times.
- fix: When the return argument is type
anyin mock generation, no casting is required.
- fix: Fix a case where mocker was not able to generate mock in the same directory/package as the interface.
- feat: Use
check.Equalto compare values incheck.HasKeyValue- with this change more complicated structures can be compared.
- feat: Add convenience function
dump.Anythat dumps values using default configuration.
- feat!: Rename
pkg/casestopkg/testcaseswhich is a better name.
- feat: Add
pkg/kit/reflectkitpackage with helpers related to thereflectionpackage.
- feat: Expose internal
casespackage used for testing nil, equal, empty and zero values.
- feat: Implement
check.NotSameTypeandassert.NotSameType.
- doc: Update readme file.
- test: Add test showing error when mocked method argument has the same time but different timezone.
- misc: Add TODO improvements.
- feat!: Change
check.Typetocheck.SameTypeandassert.Typetoassert.SameTypein preparation for addingcheck.Typeandassert.Typewhich actually asserts a type (a.(int)). - feat: Implement
check.Typeandassert.Typeto type assert types.
- feat: Add dump.WithAlwaysMultiline option which forces dumper to treat all strings as multiline even when they are not.
- feat: Improve the error messages written to the log by check.ErrorAs.
- fix: Fix misleading check.ErrorAs error message.
- feat!: Add the ability to pass comment rows in a very simple way to all assertions and checkers - loses #2.
- style: Move custom assertions examples to the examples directory.
- feat!: Remove the kit/memfs package use github.com/ctx42/memfs if you need this functionality.
- test: Add example code showing how to create custom assertions.
- style: fix minor code style issue.
- doc: add custom assertion example.
- feat: add check.Wait and assert.Wait which wait for a function to return true no longer than given timeout calling it with configurable throttle duration.
- feat!: change the order of arguments in assert.Before and check.Before to (t, mark, date) to indicate "date" must be before the "mark" - keeping the order (want, have) as in every other check and assert.
- feat: add a configuration option for mocker to customize github.com/ctx42/testing/pkg/tester import alias.
- feat: add kit.AddGlobalCleanup and kit.RunGlobalCleanups helpers.
- style: remove unnecessary import alias.
- doc: update copyright notices.
- style: ignore linting false positives.
- fix: panicking dumper for a special case where value is a nil error interface.
- style: remove unreachable code.
- doc: update documentation.
- Fix the memfs package name.
- Add check.Cap and assert.Cap functions.
- Change how test kits are organized. Now kits will be put in packages of "kit" package and be organized by "topic". The change also introduces changes to ErrReader and ErrWriter which were split into ErrReader, ErrReadCloser, ErrReadSeeker, ErrReadSeekCloser and ErrWriter, ErrWriteCloser.
- Add kit/memfs package with File struct which mimics
os.Fileand implementsfs.Fileinterface among other useful I/O interfaces. - Update documentation and change to better struct names.
- Add tstkit.SHA1Reader, tstkit.SHA1File helpers.
- Add tstkit.ReadAllFromStart helper.
- Add tstkit.ErrReader and tstkit.ErrWriter helpers.
- Update documentation.
- Fix mock generation when a method has a variadic "any" argument.
- The check.Delta, check.DeltaSlice, check.Epsilon, check.EpsilonSlice use >= instead of > check.
- Fix check.Epsilon and check.EpsilonSlice to check relative error not delta.
- Add check.Delta, check.DeltaSlice and its equivalents in the assert package.
- Add check.Increasing and check.Decreasing and their equivalents in assert package.
- Remove already resolved TODO.
- Add check.NotIncreasing and check.NotDecreasing and their equivalents in assert package.
- Add check.Greater and its equivalent in the assert package.
- Add check.Smaller and its equivalent in the assert package.
- Add check.GreaterOrEqual and its equivalent in the assert package.
- Add check.SmallerOrEqual and its equivalent in the assert package.
- Add check.EpsilonSlice and assert.EpsilonSlice functions to test all slice values are within given epsilon of each other respectively.
- Update golden file doc.
- Improve the mock error message when at least one call to the mocked method is expected.
- Fix mock generation where the interface method had a single variadic argument.
- Add the ability to generate mocks for interfaces which use parametrized types.
- Fix recursive structure checks by adding reflect.Type to the visited structure.
- Add dump.Dump.DiffValue which behaves the same way as dump.Dump.Duff but works on reflect.Value instances.
- Add dump.ValNotNil constant representing not nil values.
- Fix custom checkers when the checked type is an unexported struct field. Refactor deep equality test.
- Add support for string-based timezone comparisons and enhance error handling in check.Zone.
- Implement stack overflow prevention when comparing nested types.
- Use core.Value helper to access values in check.Equal.
- Rename check.Check to check.Checker.
- Implement WithinChecker partial application helper and add missing tests.
- Fix panic when comparing not exported struct fields which are pointers.
- Add WithZone option to support timezone adjustments in date comparisons.
- Add core.IsSimpleType helper.
- Add WithCmpBaseTypes option for comparing values with the same base type.
- Add the ability to define dumpers for a type globally.
- Fix mocker file name generation when the interface name has all capital letters.
- Simplify mock error messages. In many instances we are not able to display all the arguments and returns properly, especially in cases when matchers or specifically formated functions are used as return arguments.
- Fix linting errors.
- The goldy golden files can be Go text templates.
- Dump values of not exported fields, add special case for type error.
- Code style.
- Expose dumpers implemented in the dumper package, improve test coverage and code documentation.
- Make check.Equal work in the very similar way to reflect.DeepEqual when checking not exported fields.
- Better error messages, code style.
- Rename notice.Notice.Trail() to notice.Notice.SetTrail() to match notice.Notice.SetHeader().
- Rename notice.Notice.{SetData, GetData}() to notice.Notice.{MetaSet, MetaLookup}() to match future metadata interface.
- Improve check.Zone error message.
- Add helper method goldy.Goldy.SetContent setting golden file content from a string.
- Add notice.Pad helper function.
- The core.IsNil can now detect if the nil is wrapped nil.
- Rename Mock.SetData to Mock.MetaSetAll, Mock.GetData to Mock.MetaAll.
- Improve check.NoError error messages, improve check package error messages.
- Prefer "nil" instead of "" in error messages.
- Code style.
- Improve readability and ease of use in notice.Notice when displaying and creating multi-message instances. Improve value dumps in error messages. Update documentation.
- Improve check.Zone error message.
- The diff field in check.Within error is always in relation to "want" time. Improve documentation.
- Code style.
- Update tester.Spy documentation and wording.
- Add tester.Spy.ExamineLog method.
- Add clocks to tstkit package.
- Update workflow.
- Improve dumping structs with multi-line string fields.
- Export dump special values.
- Bring to the project code from https://github.com/golang/tools/tree/master/internal/diff and clean it up with some customizations.
- Implement diff in check and dump packages.
- Add tstkit package.
- Update documentation and code style.
- Code style / documentation.
- Figure out paths on github.
- Figure out paths on GitHub, update GitHub workflows.
- Update documentation. Add TODOs for GitHub Actions.
- Fix typo in the Dumper field name.
- Improve dumping long multi line strings. Update documentation.
- Update assertion functions documentation.
- Improve documentation in the tester README.md file.
- Improve documentation in the tester README.md file.
- Add the ability to register global type checkers, add global logger to provide information about interesting events in the test log.
- Update / add the custom type checker and global type checker documentation.
- Simplify the way the panicking assertions and checks are tested, improve documentation and test log messages.
- Code style.
- By convention, all golden files should have gld extension.
- Add new functionalities to the goldy package.
- Refactor check.Options.Trail management and improve code consistency. Export methods on check.Options.Trail so external modules can use them in custom checkers.
- Refactor goldy. Now, to open a file use Open function, the New function was added to create new golden files.
- All check and assert functions must follow the same pattern of arguments first want value then have value.
- Add mocker package.
- Regenerate assert documentation TOC.
- Link to specific package's README.md file from main README.md.
- Add skip field, element or key documentation.
- Regenerate assert documentation TOC.
- Add ability to set metadata on the notice.Notice instance, update documentation and tests.
- Move core.Len logic to inside check.Len. Clean up code.
- Rename core.DidPanic to core.WillPanic.
- Code style / documentation.
- Code style / documentation.
- Simplify the check.WillPanic returns to return two arguments instead of three.
- Update check.WillPanic documentation.
- Add link to blog.
- The notice package must be independent so it was wrong to use ErrAssert as a base error - renamed it to ErrNotice, also Notice.Wrap now just sets base error instead of wrapping it with current base error.
- The notice.Indent does not indent empty lines and does not trim the input string.
- Update method documentation.
- Use a slice to keep instance of Rows (not strings like before) in wanted order.
- Remove redundant code.
- Add ability in notice package to force row value to start at the next line, and add more documentation.
- Implement Notice.Unwrap.
- Update TOC for notice package.
- Move joined errors decorator from not exported type / helper in check package to exported notice.Join helper so other packages can use it.
- Strings shorter than 200 characters will be dumped as Flat. Added new dump.Dumper option WithFlatStrings to control the lengths of "flat strings".
- Mock package.
- Update README for mock package.
- Update README for mock package.
- Add SPDX (Software Package Data Exchange) identifiers to mock package files.
- Add core.T and core.Spy helper for testing functions in the internal directory which take *testing.T instances.
- Remove TODO.
- Refactor internal packages. Use core.Spy to test functions using *testing.T instance.
- Update Spy documentation.
- Add code.Spy.Log method. Code style improvements.
- Add goldy package.
- Add a requirement for a conscious decision to skip private fields when comparing nested structures.
- Add internal package diff.
- Add assert and check package.
- Update documentation and examples. Add ability to set dump.Config configuration in check.Options.
- Add check.ErrorIs and assert.ErrorIs.
- Add check.ErrorAs and assert.ErrorAs.
- Add check.ErrorEqual and assert.ErrorEqual.
- Add check.ErrorContain and assert.ErrorContain.
- Add check.Regexp and assert.Regexp.
- Add check.ErrorRegexp and assert.ErrorRegexp.
- Create files for specific check and assert topics.
- Refactor notice path - now it's called trail.
- Add check.FileExist, check.NoFileExist, check.DirExist, check.NoDirExist and assert.NoFileExist, assert.DirExist, assert.NoDirExist.
- Add check.Empty, check.NotEmpty and assert.Empty, assert.NotEmpty.
- Add check.Zero, check.NotZero and assert.Zero, assert.NotZero.
- Add internal helper Same which checks if two generic pointers point to the same memory.
- Add check.Same, check.NotSame and assert.Same, assert.NotSame.
- Add check.Len and assert.Len.
- Add check.True, check.False and assert.True, assert.False.
- Add check.Contain, check.NotContain and assert.Contain, assert.NotContain.
- Add check.Count, check.NotCount and assert.Count, assert.NotCount.
- Add check.Panic, check.NotPanic, check.PanicContain, check.PanicMsg and assert.Panic, assert.NotPanic, assert.PanicContain, assert.PanicMsg.
- Add check.FileContain and assert.FileContain.
- Add check.SameType and assert.SameType.
- Add check.Has, check.HasNo and assert.Has, assert.HasNo.
- Add check.HasKey, check.HasNoKey and assert.HasKey, assert.HasNoKey.
- Add check.HasKeyValue and assert.HasKeyValue.
- Add check.ExitCode and assert.ExitCode.
- Add check.SliceSubset and assert.SliceSubset.
- Change check.Options structure and add default time parsing option.
- Add FormatDates helper.
- Add helper getting time.Time from values of type any, where any may be time.Time, string, int, int64.
- Improve check.getTime error messages.
- Add check.TimeEqual and assert.TimeEqual.
- Add missing test cases to notice.Notice.
- Add check.TimeLoc and assert.TimeLoc. Build options only when needed.
- Add helper check.getDut getting time.Duration from values of type any, where any may be time.Duration, string, int, int64. Rename check and assertion TimeLoc to Zone and TimeEqual to Time.
- Add check.TimeExact and assert.TimeExact.
- Add check.Within and assert.Within.
- Better time check and assert function documentation.
- More readable log messages when asserting / checking comparing dates.
- Remove dead code.
- Update check.getDur helper. Code cleanup. Better error messages.
- Add check.Before and assert.Before.
- Add check.After and assert.After.
- Add check.EqualOrAfter and assert.EqualOrAfter.
- Add check.EqualOrBefore and assert.EqualOrBefore.
- Add ability to configure package-wide defaults.
- Update dump options and tests to use explicit "With" prefixes. Add ability to configure package-wide defaults.
- Add support for configurable recent duration in check package.
- Update documentation, add injectable clock to check.Options.
- Add check.Recent and assert.Recent.
- Better names.
- Improve test coverage.
- Add check.ChannelWillClose and assert.ChannelWillClose.
- Update dump package with better user interface and fixed dump format.
- Code cleanup and style.
- Indent with spaces when dumping values and when rendering notice messages.
- Improve notice package message formating.
- Remove internal diff package.
- Remove internal playground package.
- Update dump package documentation.
- Improve multiple notice messages rendering with the same header.
- Remove internal diff package.
- Add check.Equal which recursively compares two values.
- Fix code linting errors.
- Add assert.Equal.
- Export dump.Printer code printer.
- Refactor dump.Dump - separate dump.Config struct is not needed.
- Rename module.
- Update documentation.
- Use Option slice for equalError helper.
- Use custom byte dumper for equality errors.
- Add check.NotEqual and assert.NotEqual.
- Cleanup.
- Introduce internal core package with helpers used by higher level abstractions.
- Update behaviour for core.DidPanic and simplify affirm.Panic helper.
- Add check.JSON and assert.JSON.
- Add check.MapSubset and assert.MapSubset.
- Add check.MapsSubset and assert.MapsSubset.
- Rename check.SameType and assert.SameType to check.Type and assert.Type.
- Add check.Epsilon and assert.Epsilon.
- Add check.Fields and assert.Fields.
- Fix assert.Epsilon.
- The assert package documentation.
- The assert package documentation.
- Add Go Report Card and Go Doc icons / links.
- Add Go Test badge.
- Update affirm.Panic helper to handle errors, and other types that might be passed to panic.
- Add internal tstkit package with simple golden file reader.
- Add dump package.
- Update copyright lines to use SPDX-FileCopyrightText.
- Add work in progress disclaimer and more documentation.
- Create go.yml.
- Add package must with helper functions which panic on error. Add
affirm.DeeoEqualhelper. - Add notice package and update documentation.
- Update documentation.
- Initial commit.