A modern testing framework for Haskell with good defaults and advanced testing features. Sydtest aims to make the common easy and the hard possible. See https://github.com/NorfairKing/sydtest#readme for more information.
Changes
Changelog
[0.18.0.0] - 2024-09-26
Added
The test Assertion which displays a diff in case of error (so shouldBe,
shouldReturn, golden tests and variations) will now timeout (after 2s)
when computing the diff between expected and actual value.
In case of timeout, the values are displayed without any diff formatting.
This ensure that test suite runtime won’t be dominated by computing diff on
some pathological cases.
The smart constructor mkNotEqualButShouldHaveBeenEqual
You can use your own diff algorithm using the constructor
NotEqualButShouldHaveBeenEqualWithDiff.
Test suite does not crash if failed assertion tries to print values
containing lazy exception.
For example shouldBe (1, error "nop") (2, 3) was crashing before.
The exception is now reported as the failure reason for the test.
Note that this can be counter intuitive, because the test is failing because
values are not equal (e.g. (1, _) != (2, _)), and this will be reported
differently.
Changed
The diff computation between actual value and reference changed so diff can
timeout.
This does not change the usual API (shouldBe or GoldenTest), but some
internal changed and you may need to adapt.
The change is straightforward, most of the functions are not IO:
stringsNotEqualButShouldHaveBeenEqual,
textsNotEqualButShouldHaveBeenEqual and
bytestringsNotEqualButShouldHaveBeenEqual are now IO Assertion (was
Assertion) in order to implement the timeout logic described for
shouldBe.
The AssertionNotEqualButShouldHaveBeenEqual is removed and replaced by
NotEqualButShouldHaveBeenEqualWithDiff which embed the difference between
both values.
The record field goldenTestCompare of GoldenTest changed from a -> a -> Maybe Assertion to a -> a -> IO (Maybe Assertion).
[0.17.0.2] - 2024-09-26
Changed
Sydtest won’t crash anymore, behave weirdly, or leak resources when executed
in a REPL and interrupted by C-c.
[0.17.0.1] - 2024-09-26
Changed
Only use withArgs when the argument list isn’t already empty.
This works around a concurrency issue wherein withArgs cannot be run twice from multiple threads.
[0.17.0.0] - 2024-08-04
Changed
Allow golden tests to perform IO during comparisons
[0.16.0.0] - 2024-08-03
Changed
opt-env-conf-based settings parsing.
[0.15.1.3] - 2024-07-20
Changed
Fix race condition in the asynchronous runner
[0.15.1.2] - 2024-07-18
Changed
Fix parsing filter flags so it becomes easy to select tests with spaces in their description
[0.15.1.1] - 2023-10-04
Changed
Compatibility with optparse-applicative > 0.18.
Compatibility with GHC >= 9.7.
Refactored out fast-myers-diff into its own package.
[0.15.1.0] - 2023-07-28
Added
setupAroundWithAll: so it’s easier to use multiple outer resources to provide an inner resource, without the need of extra type annotation.
[0.15.0.0] - 2023-04-08
Added
DefBeforeAllWithNode: so that beforeAllWith can be defined in terms of it and have better parallelism properties.
DefSetupNode: so that beforeAll_ can be defined in terms of it and have better parallelism properties.
[0.14.0.0] - 2023-04-05
Added
Profiling mode, for figuring out why your test suite is slow.
Use --profile to turn it on.
Changed
An improved asynchronous test runner.
Made --debug imply --retries 0
[0.13.0.4] - 2023-03-31
Added
Allow supplying multiple --filter/--match flags.
Add short names -m and -f for the filter flag options.
[0.13.0.3] - 2023-03-27
Added
Compatibility with mtl-2.3
[0.13.0.2] - 2023-03-24
Changed
Improved white space diffing
[0.13.0.1] - 2023-01-13
Changed
Replaced the diffing algorithm by a custom one.
This has sped up diffing at least 100x and let us get rid of the Diff and split dependencies.
Reworded ‘likely not flaky’ to ‘does not look flaky’ to be more technically
accurate as we know nothing about the likelihood of flakiness.
[0.13.0.0] - 2022-10-14
Changed
Changed the default of –golden-start to false.
If this causes any of your tests to fail, that means that you are not
correctly shipping the golden results along with your test suite.
Fixed a typo in the parallelisation warning that you see when you run sydtest in parallel with only one core..
[0.12.0.1] - 2022-10-06
Released the changelog with a date.
[0.12.0.0] - 2022-10-06
Added
Automatic flakiness diagnostics, see the README
This adds the potentiallyFlaky and potentiallyFlakyWith functions.
Test.Syd now also exports pPrint.
The modifyRetries, withoutRetries, withRetries functions, to allow configuration of the number of retries independently of whether flakiness is allowed.
The TestRunReport type, so that a ResultForest contains information about all runs of a test instead of only the last.
Expectation of failure.
This adds the expectFailing, expectPassing, and withExpectationMode functions.
Changed
Fixed: Fail-fast now works correctly together with fail-on-flaky
Fixed that flags with a no- prefix did not parse correctly and could therefore not be used.
The FlakinessMode type no longer contains a number of retries.
The number of retries is now configured separately.
Fixed that xdescribe would only result in one pending test instead of the same number of tests as are marked as pending.
Fixed that specify and prop would show a callstack from inside sydtest instead of from where you used them.
Sydtest now sets the global pseudorandomness seed in the random library to the given seed using setStdGen for extra reproducability.
Removed
[0.11.0.2] - 2022-09-7
Changed
Added the shouldMatchList expectation, corresponding the one from
hspec-expectations.
[0.11.0.1] - 2022-06-28
Changed
Made the type of setupAround more general.
[0.11.0.0] - 2022-06-28
Changed
printOutputSpecForest now uses Data.Text.Lazy.IO to output the report, so it will try to respect the system’s locale.
renderResultReport now outputs a Text.Builder instead of a ByteString.Builder and a newline at the end.
[0.10.1.0] - 2022-06-04
Changed
Fixed a bug where multiple layers of contextual failures were not unwrapped and shown correctly.
Made ‘Assertion’ fields strict.
[0.10.0.0] - 2022-04-28
Added
Allow supplying filters without a flag, so hello instead of --filter hello or --match hello.
Simplified the way exceptions work to allow for attaching context to any failure instead of only Assertions.
[0.9.0.0] - 2022-04-13
Added
Optional type-safe progress reporting for property tests.
[0.8.0.1] - 2022-02-11
Changed
Fixed property tests without labels still showing labels in the output.
[0.8.0.0] - 2022-02-11
Changed
The TestDefM now contains a TestDefEnv which also contains the test description path, along with TestRunSettings.
Removed the MonadState () instance of TestDefM. It was just silly.
Changed the internals of TestDefM to use ReaderT and a strict WriterT instead of RWST.
Renamed wrapRWST to wrapForest.
Fixed the property label output to use the right total.
Moved filterTestForest and randomiseTestForest from Test.Syd.TestDefM to Test.Syd.SpecDef, where SpecDefForest is defined.
Added
getTestDescriptionPath to get the test description path upwards from inside a test definition.
[0.7.0.1] - 2021-12-23
Changed
Fixed shouldStartWith to test on the prefix rather then infix
[0.7.0.0] - 2021-12-15
Added
Flaky tests now show up in the failure report when --fail-on-flaky is active.
Flakiness information like the number of retries is now shown in the failure report for real (non-flaky) failures.
Changed
Simplified the way settings are passed around.
[0.6.1.0] - 2021-12-10
Added
The flakyWith combinator, which is like flaky, but lets you also add a message to your team.
[0.6.0.0] - 2021-11-12
Changed
Started using autodocodec instead of yamlparse-applicative.
[0.5.0.0] - 2021-11-12
Added
The flakiness combinators (flaky, notFlaky, and withFlakiness) to mark a test group as potentially flaky.
The --fail-on-flaky flag to falsify flakiness.
Experimental Windows support
Changed
Fixed the interpretation of max-size vs max-success in the configuration file and environment parsing.
[0.4.1.0] - 2021-10-10
Added
The --random-seed option to use random seeds instead of the fixed seed that is used by default.
[0.4.0.0] - 2021-09-02
Added
The --debug option.
Changed
Redid the entire flags parsing.
This should be backward compatible, and result in a nicer --help overview.
[0.3.0.3] - 2021-08-07
Changed
Show the total number of examples in the output as well