tutorials/Android-Tutorial-Test-ShowCase
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Issue#67 Extract MainDispatcherTestRule into Library

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This commit is contained in:
Gergely Hegedus 2022-05-27 16:51:33 +03:00
parent 2c01fbba20
commit a27f19302a
5 changed files with 73 additions and 55 deletions
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4
app/src/androidTest/java/org/fnives/test/showcase/ui/AuthComposeInstrumentedTest.kt
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@ -9,7 +9,7 @@ import org.fnives.test.showcase.core.integration.fake.FakeUserDataLocalStorage
import org.fnives.test.showcase.core.login.IsUserLoggedInUseCase
import org.fnives.test.showcase.network.mockserver.scenario.auth.AuthScenario
import org.fnives.test.showcase.testutils.MockServerScenarioSetupResetingTestRule
import org.fnives.test.showcase.testutils.idling.DispatcherTestRule
import org.fnives.test.showcase.testutils.idling.DatabaseDispatcherTestRule
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.anyResourceIdling
import org.junit.Before
import org.junit.Rule
@ -27,7 +27,7 @@ class AuthComposeInstrumentedTest : KoinTest {
private val mockServerScenarioSetupTestRule = MockServerScenarioSetupResetingTestRule()
private val mockServerScenarioSetup get() = mockServerScenarioSetupTestRule.mockServerScenarioSetup
private val dispatcherTestRule = DispatcherTestRule()
private val dispatcherTestRule = DatabaseDispatcherTestRule()
private lateinit var robot: ComposeLoginRobot
private lateinit var navigationRobot: ComposeNavigationRobot

2
app/src/robolectricTest/java/org/fnives/test/showcase/ui/RobolectricAuthActivityInstrumentedTest.kt
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@ -19,7 +19,7 @@ import org.fnives.test.showcase.android.testutil.synchronization.idlingresources
import org.fnives.test.showcase.network.mockserver.MockServerScenarioSetup
import org.fnives.test.showcase.network.mockserver.scenario.auth.AuthScenario
import org.fnives.test.showcase.network.testutil.NetworkTestConfigurationHelper
import org.fnives.test.showcase.testutils.idling.MainDispatcherTestRule.Companion.advanceUntilIdleWithIdlingResources
import org.fnives.test.showcase.testutils.idling.DatabaseDispatcherTestRule.Companion.advanceUntilIdleWithIdlingResources
import org.fnives.test.showcase.testutils.storage.TestDatabaseInitialization
import org.fnives.test.showcase.ui.auth.AuthActivity
import org.junit.After

4
app/src/sharedTest/java/org/fnives/test/showcase/testutils/idling/DispatcherTestRule.kt → app/src/sharedTest/java/org/fnives/test/showcase/testutils/idling/DatabaseDispatcherTestRule.kt
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@ -4,15 +4,15 @@ import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.test.StandardTestDispatcher
import kotlinx.coroutines.test.TestDispatcher
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.anyResourceIdling
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.awaitIdlingResources
import org.fnives.test.showcase.android.testutil.synchronization.runOnUIAwaitOnCurrent
import org.fnives.test.showcase.testutils.storage.TestDatabaseInitialization
import org.junit.rules.TestRule
import org.junit.runner.Description
import org.junit.runners.model.Statement
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.awaitIdlingResources
@OptIn(ExperimentalCoroutinesApi::class)
class DispatcherTestRule : TestRule {
class DatabaseDispatcherTestRule : TestRule {
private lateinit var testDispatcher: TestDispatcher

54
app/src/sharedTest/java/org/fnives/test/showcase/testutils/idling/MainDispatcherTestRule.kt
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@ -1,60 +1,14 @@
package org.fnives.test.showcase.testutils.idling
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.test.StandardTestDispatcher
import kotlinx.coroutines.test.TestDispatcher
import kotlinx.coroutines.test.resetMain
import kotlinx.coroutines.test.setMain
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.anyResourceIdling
import org.fnives.test.showcase.android.testutil.synchronization.runOnUIAwaitOnCurrent
import org.fnives.test.showcase.testutils.storage.TestDatabaseInitialization
import org.junit.rules.TestRule
import org.junit.runner.Description
import org.junit.runners.model.Statement
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.awaitIdlingResources
import org.fnives.test.showcase.android.testutil.synchronization.MainDispatcherTestRule as LibMainDispatcherTestRule
@OptIn(ExperimentalCoroutinesApi::class)
class MainDispatcherTestRule : TestRule {
class MainDispatcherTestRule(useStandard: Boolean = true) : LibMainDispatcherTestRule(useStandard) {
private lateinit var testDispatcher: TestDispatcher
override fun apply(base: Statement, description: Description): Statement =
object : Statement() {
@Throws(Throwable::class)
override fun evaluate() {
val dispatcher = StandardTestDispatcher()
Dispatchers.setMain(dispatcher)
testDispatcher = dispatcher
TestDatabaseInitialization.overwriteDatabaseInitialization(dispatcher)
try {
base.evaluate()
} finally {
Dispatchers.resetMain()
}
}
}
fun advanceUntilIdleWithIdlingResources() = runOnUIAwaitOnCurrent {
testDispatcher.advanceUntilIdleWithIdlingResources()
}
fun advanceUntilIdle() = runOnUIAwaitOnCurrent {
testDispatcher.scheduler.advanceUntilIdle()
}
fun advanceTimeBy(delayInMillis: Long) = runOnUIAwaitOnCurrent {
testDispatcher.scheduler.advanceTimeBy(delayInMillis)
}
companion object {
fun TestDispatcher.advanceUntilIdleWithIdlingResources() {
scheduler.advanceUntilIdle() // advance until a request is sent
while (anyResourceIdling()) { // check if any request is in progress
awaitIdlingResources() // complete all requests and other idling resources
scheduler.advanceUntilIdle() // run coroutines after request is finished
}
scheduler.advanceUntilIdle()
}
override fun onTestDispatcherInitialized(testDispatcher: TestDispatcher) {
TestDatabaseInitialization.overwriteDatabaseInitialization(testDispatcher)
}
}

64
test-util-android/src/main/java/org/fnives/test/showcase/android/testutil/synchronization/MainDispatcherTestRule.kt Normal file
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@ -0,0 +1,64 @@
package org.fnives.test.showcase.android.testutil.synchronization
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.test.StandardTestDispatcher
import kotlinx.coroutines.test.TestDispatcher
import kotlinx.coroutines.test.UnconfinedTestDispatcher
import kotlinx.coroutines.test.resetMain
import kotlinx.coroutines.test.setMain
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.anyResourceIdling
import org.fnives.test.showcase.android.testutil.synchronization.idlingresources.awaitIdlingResources
import org.junit.rules.TestRule
import org.junit.runner.Description
import org.junit.runners.model.Statement
@OptIn(ExperimentalCoroutinesApi::class)
open class MainDispatcherTestRule(private val useStandard: Boolean = true) : TestRule {
private lateinit var testDispatcher: TestDispatcher
override fun apply(base: Statement, description: Description): Statement =
object : Statement() {
@Throws(Throwable::class)
override fun evaluate() {
val dispatcher = if (useStandard) StandardTestDispatcher() else UnconfinedTestDispatcher()
Dispatchers.setMain(dispatcher)
testDispatcher = dispatcher
onTestDispatcherInitialized(testDispatcher)
try {
base.evaluate()
} finally {
Dispatchers.resetMain()
onTestDispatcherReset()
}
}
}
open fun onTestDispatcherInitialized(testDispatcher: TestDispatcher) = Unit
open fun onTestDispatcherReset() = Unit
fun advanceUntilIdleWithIdlingResources() = runOnUIAwaitOnCurrent {
testDispatcher.advanceUntilIdleWithIdlingResources()
}
fun advanceUntilIdle() = runOnUIAwaitOnCurrent {
testDispatcher.scheduler.advanceUntilIdle()
}
fun advanceTimeBy(delayInMillis: Long) = runOnUIAwaitOnCurrent {
testDispatcher.scheduler.advanceTimeBy(delayInMillis)
}
companion object {
fun TestDispatcher.advanceUntilIdleWithIdlingResources() {
scheduler.advanceUntilIdle() // advance until a request is sent
while (anyResourceIdling()) { // check if any request is in progress
awaitIdlingResources() // complete all requests and other idling resources
scheduler.advanceUntilIdle() // run coroutines after request is finished
}
scheduler.advanceUntilIdle()
}
}
}