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/*
* The MIT License
*
* Copyright (c) 2018 Niek Haarman
* Copyright (c) 2007 Mockito contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.mockito.kotlin
import org.mockito.kotlin.internal.createInstance
import kotlinx.coroutines.runBlocking
import org.mockito.Mockito
import org.mockito.stubbing.OngoingStubbing
import kotlin.reflect.KClass
inline fun <T> stubbing(
mock: T,
stubbing: KStubbing<T>.(T) -> Unit
) {
KStubbing(mock).stubbing(mock)
}
inline fun <T : Any> T.stub(stubbing: KStubbing<T>.(T) -> Unit): T {
return apply { KStubbing(this).stubbing(this) }
}
class KStubbing<out T>(val mock: T) {
fun <R> on(methodCall: R): OngoingStubbing<R> = Mockito.`when`(methodCall)
fun <R : Any> onGeneric(methodCall: T.() -> R?, c: KClass<R>): OngoingStubbing<R> {
val r = try {
mock.methodCall()
} catch (e: NullPointerException) {
// An NPE may be thrown by the Kotlin type system when the MockMethodInterceptor returns a
// null value for a non-nullable generic type.
// We catch this NPE to return a valid instance.
// The Mockito state has already been modified at this point to reflect
// the wanted changes.
createInstance(c)
}
return Mockito.`when`(r)
}
inline fun <reified R : Any> onGeneric(noinline methodCall: T.() -> R?): OngoingStubbing<R> {
return onGeneric(methodCall, R::class)
}
fun <R> on(methodCall: T.() -> R): OngoingStubbing<R> {
return try {
Mockito.`when`(mock.methodCall())
} catch (e: NullPointerException) {
throw MockitoKotlinException(
"NullPointerException thrown when stubbing.\nThis may be due to two reasons:\n\t- The method you're trying to stub threw an NPE: look at the stack trace below;\n\t- You're trying to stub a generic method: try `onGeneric` instead.",
e
)
}
}
fun <T : Any, R> KStubbing<T>.onBlocking(
m: suspend T.() -> R
): OngoingStubbing<R> {
return runBlocking { Mockito.`when`(mock.m()) }
}
}
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