I'm stuck trying to mock some stuff with mockk:
I have the following setup on gradle
root:
|-- App (just a sample app for the SDK)
|-- SDK (SDK we develop) << apply plugin: 'com.android.library'
|-- SDKimpl.kt
|-- Foo (wrapper around a .jar library) << apply plugin: 'com.android.library'
|-- Foo.kt
So I'm writing an androidTest
for the SDK and trying to mock Foo.kt
.
There's nothing unusual about Foo class, just direct class Foo(private val someParams) {
So using androidTestImplementation "io.mockk:mockk-android:1.8.13"
the mock goes:
val mock: Foo = mockk()
// val mock: Foo = mockkClass(Foo::class) // also tried this
every { mock.getData() } returns listOf("1", "2", "3")
I'm always getting the following crash:
io.mockk.MockKException: Missing calls inside every { ... } block.
at io.mockk.impl.recording.states.StubbingState.checkMissingCalls(StubbingState.kt:14)
at io.mockk.impl.recording.states.StubbingState.recordingDone(StubbingState.kt:8)
at io.mockk.impl.recording.CommonCallRecorder.done(CommonCallRecorder.kt:42)
Also tried just to gather information:
androidTest
inside Foo
module. Got the same crash@MockK
and MockKAnnotations.init(this)
. Got some crash.Log.d
before every {
line and inside getData()
method and it seems the actual real method from the class is getting called during the mock setup. That seems super weird to me.Any idea what's going wrong here?
edit:
as requested, full code. I'm current working on an isolated project to try to isolate the error, so Foo is just:
class Foo {
fun getData(): String {
Log.d(TAG, "invoked foo.getData()")
return "trolololo"
}
}
and then I have FooTest in androidTest
:
class FooTest {
@Test
fun mock_foo() {
val foo = mockk<Foo>()
every { foo.getData() } returns "zero"
assertEquals("zero", foo.getData())
}
}
It seems to be a Mockk opened issue: https://github.com/mockk/mockk/issues/182
2 possible quick fixes (pick one):
Foo
class as open (and the method(s) you want to mock too)Try to check the official guide and see what is missing.
In my case, I tried to mock an extension in Kotlin but missed the mockkStatic
fun Date.asMyTime() : DateTime = DateTime(this, DateTimeZone.getDefault())
mockkStatic("packageName.FileNameKt") // This is what I was missing
every {
DateTime().asMyTime()
} returns mock(DateTime::class.java)
In my case I forgot to spyk
the class I was applying every {...}
to. 😳
val presenter = spyk(MyPresenter())
every { view.myFun(any()) } returns Unit
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