Kotest Property Testing

Kotest property testing defines inputs and expected output, then generates many inputs that should satisfy the property being tested.

Kotest has two function variants used to run property tests, forAll and checkAll.

Kotest generators are tools used to support property-based testing.

Introduces the full list of Kotlin generators.

Introduces Kotest generator operations including Next, Filter, Map, FlatMap, Merging, and Bind.

When a property test runs, values are generated using a random source created from a seed value.

Explains Kotest property testing configuration.

In property-based testing, the first failure case found may contain a lot of complexity that is not actually responsible for making the test fail.

Sometimes you may want to know what kinds of values Kotest generates to check that a generator is configured as expected.

Some property test settings can be configured globally for all property tests.

Kotest provides an optional module that provides generators for Arrow.

Kotest provides an optional module that provides generators for KotlinX DateTime.

Introduces additional Arbs for general-purpose data generation.

When running tests on the JVM, Kotest supports automatically generating more complex Arbs.