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Coverage: improve test coverage, disable deprecations, add missing te…
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35 changes: 35 additions & 0 deletions
35
ui/kotlinx-coroutines-android/test/AndroidExceptionPreHandlerTest.kt
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/* | ||
* Copyright 2016-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. | ||
*/ | ||
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package kotlinx.coroutines.android | ||
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import kotlinx.coroutines.* | ||
import org.junit.Test | ||
import org.junit.runner.* | ||
import org.robolectric.* | ||
import org.robolectric.annotation.* | ||
import kotlin.test.* | ||
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@RunWith(RobolectricTestRunner::class) | ||
@Config(manifest = Config.NONE, sdk = [27]) | ||
class AndroidExceptionPreHandlerTest : TestBase() { | ||
@Test | ||
fun testUnhandledException() = runTest { | ||
val previousHandler = Thread.getDefaultUncaughtExceptionHandler() | ||
try { | ||
Thread.setDefaultUncaughtExceptionHandler { _, e -> | ||
expect(3) | ||
assertIs<TestException>(e) | ||
} | ||
expect(1) | ||
GlobalScope.launch(Dispatchers.Main) { | ||
expect(2) | ||
throw TestException() | ||
}.join() | ||
finish(4) | ||
} finally { | ||
Thread.setDefaultUncaughtExceptionHandler(previousHandler) | ||
} | ||
} | ||
} |
145 changes: 145 additions & 0 deletions
145
ui/kotlinx-coroutines-android/test/HandlerDispatcherAsyncTest.kt
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/* | ||
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. | ||
*/ | ||
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package kotlinx.coroutines.android | ||
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import android.os.* | ||
import kotlinx.coroutines.* | ||
import org.junit.Test | ||
import org.junit.runner.* | ||
import org.robolectric.* | ||
import org.robolectric.Shadows.* | ||
import org.robolectric.annotation.* | ||
import org.robolectric.shadows.* | ||
import org.robolectric.util.* | ||
import java.util.concurrent.* | ||
import kotlin.test.* | ||
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@RunWith(RobolectricTestRunner::class) | ||
@Config(manifest = Config.NONE, sdk = [28]) | ||
class HandlerDispatcherAsyncTest : TestBase() { | ||
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/** | ||
* Because [Dispatchers.Main] is a singleton, we cannot vary its initialization behavior. As a | ||
* result we only test its behavior on the newest API level and assert that it uses async | ||
* messages. We rely on the other tests to exercise the variance of the mechanism that the main | ||
* dispatcher uses to ensure it has correct behavior on all API levels. | ||
*/ | ||
@Test | ||
fun mainIsAsync() = runTest { | ||
ReflectionHelpers.setStaticField(Build.VERSION::class.java, "SDK_INT", 28) | ||
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val mainLooper = shadowOf(Looper.getMainLooper()) | ||
mainLooper.pause() | ||
val mainMessageQueue = shadowOf(Looper.getMainLooper().queue) | ||
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val job = launch(Dispatchers.Main) { | ||
expect(2) | ||
} | ||
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val message = mainMessageQueue.head | ||
assertTrue(message.isAsynchronous) | ||
job.join(mainLooper) | ||
} | ||
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@Test | ||
fun asyncMessagesApi14() = runTest { | ||
ReflectionHelpers.setStaticField(Build.VERSION::class.java, "SDK_INT", 14) | ||
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val main = Looper.getMainLooper().asHandler(async = true).asCoroutineDispatcher() | ||
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val mainLooper = shadowOf(Looper.getMainLooper()) | ||
mainLooper.pause() | ||
val mainMessageQueue = shadowOf(Looper.getMainLooper().queue) | ||
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val job = launch(main) { | ||
expect(2) | ||
} | ||
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val message = mainMessageQueue.head | ||
assertFalse(message.isAsynchronous) | ||
job.join(mainLooper) | ||
} | ||
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@Test | ||
fun asyncMessagesApi16() = runTest { | ||
ReflectionHelpers.setStaticField(Build.VERSION::class.java, "SDK_INT", 16) | ||
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val main = Looper.getMainLooper().asHandler(async = true).asCoroutineDispatcher() | ||
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val mainLooper = shadowOf(Looper.getMainLooper()) | ||
mainLooper.pause() | ||
val mainMessageQueue = shadowOf(Looper.getMainLooper().queue) | ||
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val job = launch(main) { | ||
expect(2) | ||
} | ||
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val message = mainMessageQueue.head | ||
assertTrue(message.isAsynchronous) | ||
job.join(mainLooper) | ||
} | ||
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@Test | ||
fun asyncMessagesApi28() = runTest { | ||
ReflectionHelpers.setStaticField(Build.VERSION::class.java, "SDK_INT", 28) | ||
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val main = Looper.getMainLooper().asHandler(async = true).asCoroutineDispatcher() | ||
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val mainLooper = shadowOf(Looper.getMainLooper()) | ||
mainLooper.pause() | ||
val mainMessageQueue = shadowOf(Looper.getMainLooper().queue) | ||
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val job = launch(main) { | ||
expect(2) | ||
} | ||
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val message = mainMessageQueue.head | ||
assertTrue(message.isAsynchronous) | ||
job.join(mainLooper) | ||
} | ||
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@Test | ||
fun noAsyncMessagesIfNotRequested() = runTest { | ||
ReflectionHelpers.setStaticField(Build.VERSION::class.java, "SDK_INT", 28) | ||
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val main = Looper.getMainLooper().asHandler(async = false).asCoroutineDispatcher() | ||
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val mainLooper = shadowOf(Looper.getMainLooper()) | ||
mainLooper.pause() | ||
val mainMessageQueue = shadowOf(Looper.getMainLooper().queue) | ||
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val job = launch(main) { | ||
expect(2) | ||
} | ||
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val message = mainMessageQueue.head | ||
assertFalse(message.isAsynchronous) | ||
job.join(mainLooper) | ||
} | ||
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@Test | ||
fun testToString() { | ||
ReflectionHelpers.setStaticField(Build.VERSION::class.java, "SDK_INT", 28) | ||
val main = Looper.getMainLooper().asHandler(async = true).asCoroutineDispatcher("testName") | ||
assertEquals("testName", main.toString()) | ||
assertEquals("testName.immediate", main.immediate.toString()) | ||
assertEquals("testName.immediate", main.immediate.immediate.toString()) | ||
} | ||
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private suspend fun Job.join(mainLooper: ShadowLooper) { | ||
expect(1) | ||
mainLooper.unPause() | ||
join() | ||
finish(3) | ||
} | ||
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// TODO compile against API 23+ so this can be invoked without reflection. | ||
private val Looper.queue: MessageQueue | ||
get() = Looper::class.java.getDeclaredMethod("getQueue").invoke(this) as MessageQueue | ||
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// TODO compile against API 22+ so this can be invoked without reflection. | ||
private val Message.isAsynchronous: Boolean | ||
get() = Message::class.java.getDeclaredMethod("isAsynchronous").invoke(this) as Boolean | ||
} |
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