mockito-kotlin
jackson-module-kotlin
mockito-kotlin | jackson-module-kotlin | |
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6 | 9 | |
3,073 | 1,104 | |
0.0% | 0.8% | |
6.1 | 9.3 | |
28 days ago | 10 days ago | |
Kotlin | Kotlin | |
MIT License | Apache License 2.0 |
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mockito-kotlin
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Best practices for Unit Testing Android Apps with Mockk, Kotest and others
As you can see, I create mockUsersRepository object using mock( function. Then, in setup() method, I set up this repository in such a way so that it would return a list of hardcoded values. After this, on top of everything else, I check if, for mockUsersRepository object, getUsers method was called with verify function, in the test method. It’s important to note that Mockito is a very old framework and was originally written for Java. When Kotlin appeared, it turned out that out of the box this framework can work with some limitations, which is why an extension, mockito-kotlin, was released. The example above was written with it. Another Mockito’s limitation was that it was impossible to mock final classes and static methods, and all classes are final by default in Kotlin. Currently, this is solved through mockito-inline but, before, it was a serious limitation. In respect to Java development, there was and is an alternative for Android developers, PowerMock.
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Why don't you write unit tests and integration tests to ksp project
In the demo project, I used junit and mockito. One thing we need to pre-learn do the unit test, that is ksp class diagram.
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Spring with java vs Spring with kotlin
What's wrong with Mockito for Kotlin?
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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.
- Avoiding Stringly-typed in Kotlin
- Argument(s) are different! Wanted: Unit test
jackson-module-kotlin
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Jackson, moshi or kotlinx.serialization?
strictNullCheck option in the Kotlin module doesn't cover non-object-field situations at all. https://github.com/FasterXML/jackson-module-kotlin/issues/479
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Strings, Please! Eliminating Data Leaks Caused by Kotlin Assertions
But, it sucked. I was constantly finding bugs related to nullability, around generics, inline/value classes, etc. And it wasn't the typical trivial ones, either. Figuring out that you're calling a Java library and encountering a "platform type" is the least problematic. My biggest struggle came from using libraries that were written in Java first, but then added a Kotlin API on top. So, my code didn't know I was dealing with a platform type and neither did I. Yet they were still broken. Some of them are broken in an unfixable way, such as JacksonXML's Kotlin module: https://github.com/FasterXML/jackson-module-kotlin/issues/479. So many Java libraries rely on reflection even when it's not obvious that they might, so you pretty much can't ever use value classes in Kotlin, including the unsigned number types.
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From Java to Kotlin. There and back again
You should add Jackson Module Kotlin in your project. After that, you can't specify a type of object explicitly.
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How Cloudflare security responded to log4j2 vulnerability
Not really, you just need to handle some standard types and have a good extension mechanism to let the user implement factories. That library having built in support for UUID and datetime is probably a bit much, I'd prefer a plugin like https://github.com/FasterXML/jackson-module-kotlin
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Ktor vs Spring for creating an API
There is a bug at this very moment that makes it literally impossible to deserialize [1, 2, 3, null] into a List with Jackson's Kotlin module. Yes- even if you set KotlinModule(strictNullChecks = true). It's just broken. (Here's the link: https://github.com/FasterXML/jackson-module-kotlin/issues/479)
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Kotlin Team AMA #3: Ask Us Anything
Got you, thanks. I didn’t mean to sound offensive - a better wording would be that they don’t seem to prioritize this part, at least based on https://github.com/FasterXML/jackson-module-kotlin/issues/199, which has one abandoned branch from a 3rd party and a couple of comments from from maintainers.
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kotlinx.serialization 1.2 Released: High-Speed JSON Handling, Value Class Support, Overhauled Docs, and more
If you use Jackson, don't forget to include the Kotlin extensions https://github.com/FasterXML/jackson-module-kotlin
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Serializing and deserializing "Any" Kotlin type using jackson mapper
Did you include jackson-module-kotlin?
What are some alternatives?
mockk - mocking library for Kotlin
kotlinx.serialization - Kotlin multiplatform / multi-format serialization
Kotest - Powerful, elegant and flexible test framework for Kotlin with additional assertions, property testing and data driven testing
klaxon - A JSON parser for Kotlin
kotlin-faker - Port of a popular ruby faker gem written in kotlin. Generate realistically looking fake data such as names, addresses, banking details, and many more, that can be used for testing and data anonymization purposes.
avro4k - Avro support for kotlinx.serialization
balin - Balin is an automation library for Kotlin. It's basically a Selenium-WebDriver wrapper inspired by Geb.
Kotson
spek - A specification framework for Kotlin
KTON - Object notation in pure Kotlin!
mock-fuel - JUnit 5 extension to easily test with the http client Fuel for Kotlin
fluid-json - A JSON library written in pure Kotlin