Configure tests

Customize test settings

Test settings such as timeouts can be configured in the property function. Since property accepts the same arguments as test, the same configurations are possible.

Settings that affect globally can be modified through static properties of KiriCheck.

Customize number of examples and attempts

The maximum number of values passed to the test block can be specified using KiriCheck.maxExamples or maxExamples in forAll. The default is 100. If generated values are discarded using filters such as filter, you can repeat the generation up to the maximum number of attempts specified by KiriCheck.maxTries or maxTries in forAll.

Customize number of shrinking attempts

The number of attempts for shrinking can be specified using KiriCheck.maxShrinkingTries or maxShrinkingTries in forAll. The default is 100.

If you want to disable or make shrinking unlimited, specify ShrinkingPolicy using KiriCheck.shrinkingPolicy or shrinkingPolicy in forAll. To disable, specify ShrinkingPolicy.off; to make it unlimited, specify ShrinkingPolicy.full.

Fix random seed

You can specify a random seed using KiriCheck.seed or seed in forAll. Fixing the random seed ensures that the same errors and shrinking results occur every time an error happens.

Skip failed tests

By setting ignoreFalsify to true in forAll, testing will continue even if a test fails.

Show generated values and shrunk values verbosely

Setting KiriCheck.verbosity to Verbosity.verbose allows you to display the details of generated and shrunk values.

Example: