mockk
mocking library for Kotlin (by mockk)
turbine
A small testing library for kotlinx.coroutines Flow (by cashapp)
| mockk | turbine | |
|---|---|---|
| 17 | 8 | |
| 5,284 | 2,324 | |
| 0.4% | 0.5% | |
| 8.5 | 8.2 | |
| 23 days ago | 21 days ago | |
| Kotlin | Kotlin | |
| Apache License 2.0 | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
mockk
Posts with mentions or reviews of mockk.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-11-23.
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For those DAO, Services, how about using static objects with mockk for test
The official suggests using dagger/hilt to inject them. However, they could be static based on the static ApplicationContext. Although Dagger/hilt aids in unit testing, mockk can accomplish this easily as well by modifying bytecode during run time. As for the stability, `mockk` has 5000+ stars on GitHub and keeps renewing.
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Tests Everywhere - Kotlin
We can create it as a class as MockK is able to mock final classes.
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🧪 **Demystifying Kotlin Unit Testing**: Your Odyssey to Code Confidence! 🚀
Mockk Documentation
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Best practices for Unit Testing Android Apps with Mockk, Kotest and others
Mockk is a rather new framework; it was originally designed for Kotlin, although it supports Java as well. Before mockito-kotlin was released, using Mockk was much easier and beneficial for Kotlin developers, but right now both these frameworks have nearly the same set of features and similar syntax. For example, assume that our function loadUsers is no longer synchronous, but rather suspended:
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LocalDateTime.now() mockk
You can use mockkStatic for that, see docs. Also don't forget to unmockkStatic afterwards.
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reflective-mockk: Stub methods programmatically using kotlin-reflect
WARNING: reflective-mockk is currently powered by a reflective “hack” on mockK, and is thereby subject to removal/breakage by the mockK team at any time. If you enjoy this library & want it to be officially supported, post a comment saying so on this PR: https://github.com/mockk/mockk/pull/1005.
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mockk VS mockative - a user suggested alternative
2 projects | 9 Nov 2022
- Are there any plans to make a better build system for Kotlin than Gradle?
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Spring with java vs Spring with kotlin
https://mockk.io/ is great, too.
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From Java to Kotlin. There and back again
Mockito does not work correctly with Kotlin types out of the box. Spring recommends using Mockk. There is also a special module for Mockito, which adds support for Kotlin - Mockito-Kotlin.
turbine
Posts with mentions or reviews of turbine.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-05-10.
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Best practices for Unit Testing Android Apps with Mockk, Kotest and others
Much of this is now available in Mockito. Even more - naturally Kotlin doesn’t have static methods, and it’s a good practice not to create them. Ideal code is code that follows the SOLID and Clean Architecture principles, which means it can be easily mocked and tested. Therefore, we, Android developers, don’t need PowerMock’s special features but it’s important to remember that such frameworks exist. Another Mockito’s limitation concerns work with coroutines and flows. In such cases, once again, mockito-kotlin as well as third-party libraries like turbine will help you out. This being said, I’d like to tell you about another alternative to Mockito, which is Mockk.
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As an Android dev - which of these topics do you feel like you’re struggling the most with? What skills would you like to improve?
All you need: https://github.com/cashapp/turbine
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Testing Kotlin Flows on Coroutines 1.6
You've essentially converged on what Turbine does.
- I'm getting an error that 'child jobs have not finished yet' while executing this test case. But i'm making sure that my child coroutine finishes before asserting the result. Any ideas?
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Updating my tech stack: RxJava vs Flow
Turbine is an excellent library for testing flows and is pretty much required imo. But overall Rx is much easier to test; debugging works much more consistently and the built in testing functions are great.
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JVM Testing Newsletter | July 2021
turbine release 0.6.0
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Testing StateFlow
This issue on how StateFlows should be tested is probably also worth reading: https://github.com/cashapp/turbine/issues/19
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From RxJava to Kotlin Flow: Testing
Use https://github.com/cashapp/turbine
What are some alternatives?
When comparing mockk and turbine you can also consider the following projects:
mockito-kotlin - Using Mockito with Kotlin
Reaktive - Kotlin multi-platform implementation of Reactive Extensions
Kotest - Powerful, elegant and flexible test framework for Kotlin with additional assertions, property testing and data driven testing
kotlinx.coroutines - Library support for Kotlin coroutines
spek - A specification framework for Kotlin
mock-fuel - JUnit 5 extension to easily test with the http client Fuel for Kotlin
junit-pioneer - JUnit 5 Extension Pack
Kluent - Fluent Assertion-Library for Kotlin
compose-multiplatform - Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
kotlin-logging - Lightweight Multiplatform logging framework for Kotlin. A convenient and performant logging facade.