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View Code? Open in Web Editor NEWThe mocking library for Kotlin Multiplatform, easy to use, boilerplate-free and compiler plugin driven.
Home Page: https://mokkery.dev
License: Apache License 2.0
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Mocks incompatible with value classes
It seems that using value class, e.g. kotlin.Result in mocks will fail the test with exception
Given the interface
interface TestInterfaceWithValueClass {
fun test(): Result<String>
}
Calling the test
@Test
fun testReturnsMockableInterfaceWithValueClassImpl() {
val mocked = mock<TestInterfaceWithValueClass> {
every { test() } returns Result.success("test")
}
assertEquals(Result.success("test"), mocked.test())
}
Will fail with exception
java.lang.NullPointerException: Cannot invoke "kotlin.Result.unbox-impl()" because the return value of "dev.mokkery.internal.MokkeryInterceptor.interceptCall(dev.mokkery.internal.CallContext)" is null
at dev.mokkery.test.TestInterfaceWithValueClassb7d4c11efdfd4d2aa2c67574e6dd5d5eMock.test-d1pmJ48(MockTest.kt)
at dev.mokkery.test.MockTest$testReturnsMockableInterfaceWithValueClassImpl$mocked$1$1.invoke-IoAF18A(MockTest.kt:23)
at dev.mokkery.test.MockTest$testReturnsMockableInterfaceWithValueClassImpl$mocked$1$1.invoke(MockTest.kt)
at dev.mokkery.internal.EveryKt.internalEvery(Every.kt:21)
at dev.mokkery.test.MockTest$testReturnsMockableInterfaceWithValueClassImpl$mocked$1.invoke(MockTest.kt)
at dev.mokkery.test.MockTest$testReturnsMockableInterfaceWithValueClassImpl$mocked$1.invoke(MockTest.kt:22)
at dev.mokkery.test.TestInterfaceWithValueClassb7d4c11efdfd4d2aa2c67574e6dd5d5eMock.<init>(MockTest.kt)
at dev.mokkery.test.MockTest.testReturnsMockableInterfaceWithValueClassImpl(MockTest.kt:22)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
...
mokkery version: 1.9.23-1.6.0
kotlin version: 1.9.23
Mocking `abstract`/`open` classes requires default constructor
Currently, Mokkery requires abstract/open classes to have a default constructor, and it should be possible to remove this requirement.
This limitation was partially mentioned in #4 .
Is not possible to mock a `data class`
I have the implementation of this data class:
@Serializable
data class WordPair(
val wordsTotal: Int,
val wordsFound: List<String>
)at first run, I get this error:
Type ''com.alejandrorios.bogglemultiplatform.data.models.WordPair'' is final and cannot be used with ''mock''!
which I know it is because of one of the limitations of the library, then I'm including the @OpenForMokkery annotation to the data class, and now I get this error:
Class ''com.alejandrorios.bogglemultiplatform.data.models.WordPair'' has no default constructor and cannot be used with ''mock''!
Is it possible to solve this without adding default values to the data class?, maybe I'm missing something else.
Kotlin 2.0.0 support
Hey team Mokkery,
This is more of an information request than an issue, just wondering, if and when we can expect support for Kotlin 2.0?
I'm aware it's still in beta, but we'd love to start testing it asap, but since mokkery is a crucial part of the application we're a bit blocked.
Best,
-martin
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