Kotest vs Tape
Kotest
kotest.ioTape
github.comSide by side
| Figure | Kotest | Tape |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| Plans published | 1 | 0 |
| Spec score · Unit Testing | 7.9 (#12) | 6.5 (#24) |
| Assertions | Kotest provides over 350 matchers, plus collection inspectors, soft assertions and utilities for non-deterministic code. | Its assertion methods include truthy, equality, deep equality, exception, and pattern-matching assertions. |
| Integrations | Documented integrations include Spring, Koin, Ktor, Allure, Testcontainers, WireMock and Micronaut. | The README lists companion modules for TAP reporters, including tap-spec, tap-dot, faucet, tap-json, and tap-xunit. |
| Test execution | Its DSL supports parameterized and data driven tests, conditional evaluation, lifecycle callbacks and parallelism. | Tests execute serially, and the command-line runner can select test files with glob patterns. |
Plans
In their own words
Kotest
Kotest is a Kotlin testing framework for JVM and Kotlin Multiplatform projects, with test styles, assertions and property testing. Its styles allow natural-language test names and unlimited nesting. The DSL supports parameterized and data-driven tests, conditional evaluation, lifecycle callbacks and parallel execution. The assertion library includes over 350 matchers, collection inspectors, soft assertions and utilities for non-deterministic code. Property tests can generate hundreds or thousands of inputs, and property testing is supported across all targets. Listed targets include JVM, JavaScript, Native, Wasm and Android unit and instrumented tests; Native includes Linux, Windows, iOS and macOS. Setup instructions cover Gradle, Maven and Kotlin Multiplatform projects. Integrations include Spring, Koin, Ktor, Allure, Testcontainers, WireMock and Micronaut. An IntelliJ plugin provides test run icons, editor results, a test explorer, structure highlighting and breadcrumbs. Kotest is free, with a free plan and no free trial. Its assertions library can also be used with JUnit, Spock or another test framework.