I can't use the common mock library ( mockk.io ), with kotlin multiplatform. In their website it says that to use mockk in kotlin multiplatform you just need to add this line to your gradle. testImplementation "io.mockk:mockk-common:{version}"
I added it and it builds normally, only when I want to use it is when it fails. Giving
Unresolved reference: io
Unresolved reference: mockk
my gradle file
kotlin {
val hostOs = System.getProperty("os.name")
val isMingwX64 = hostOs.startsWith("Windows")
val nativeTarget = when {
hostOs == "Mac OS X" -> macosX64("native")
hostOs == "Linux" -> linuxX64("native")
isMingwX64 -> mingwX64("native")
else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
}
nativeTarget.apply {
binaries {
executable {
entryPoint = "main"
}
}
}
sourceSets {
val nativeMain by getting
val nativeTest by getting
val commonTest by getting {
dependencies {
implementation(kotlin("test-common"))
implementation(kotlin("test-annotations-common"))
implementation("io.mockk:mockk-common:1.10.4")
}
}
}
}
2 Answers
Unless something has changed, mockk does not work on Kotlin Native.
You can use Mockative to mock interfaces in Kotlin/Native and Kotlin Multiplatform, not unlike how you'd mock dependencies using MockK or Mockito.
Full disclosure: I am one of the authors of Mockative
Here's an example:
class GitHubServiceTests {
@Mock val api = mock(classOf<GitHubAPI>())
val service = GitHubService(api)
@Test
fun test() {
// Given
val id = "mockative/mockative"
val mockative = Repository(id = id, name = "Mockative")
given(api).invocation { fetchRepository(id) }
.thenReturn(mockative)
// When
val repository = service.getRepository(id)
// Then
assertEquals(mockative, repository)
// You can also verify function calls on mocks
verify(api).invocation { fetchRepository(id) }
.wasInvoked(exactly = once)
}
}
