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How to use CoroutinesTest class of test package

Best Mockito-kotlin code snippet using test.CoroutinesTest

EitherFlowUtilsTest.kt

Source:EitherFlowUtilsTest.kt

...4import kotlinx.coroutines.flow.flow5import kotlinx.coroutines.flow.flowOf6import kotlinx.coroutines.flow.map7import kotlinx.coroutines.flow.toList8import util.test.CoroutinesTest9import kotlin.test.*10internal class EitherFlowUtilsTest : CoroutinesTest {11    @Test12    fun `foldMap works correctly`() = coroutinesTest {13        val source = flowOf(1.left(), "2".right())14        val result = source.foldMap({ it.toString() }, { it.toInt() })15        val (first, second) = result.toList()16        assert that first *{17            +leftOrNull() `is` type<String>()18            +leftOrNull() equals 119            +rightOrNull() `is` Null20        }21        assert that second *{22            +rightOrNull() `is` type<Int>()23            +rightOrNull() equals 224            +leftOrNull() `is` Null...

MainActivity.kt

Source:MainActivity.kt

1package com.example.threadstest2import android.Manifest3import android.content.pm.PackageManager4import android.os.Bundle5import androidx.appcompat.app.AppCompatActivity6import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers7import io.reactivex.rxjava3.core.CompletableObserver8import io.reactivex.rxjava3.core.Observable9import io.reactivex.rxjava3.core.Observer10import io.reactivex.rxjava3.core.SingleObserver11import io.reactivex.rxjava3.disposables.Disposable12import io.reactivex.rxjava3.schedulers.Schedulers13import kotlinx.coroutines.GlobalScope14import kotlinx.coroutines.delay15import kotlinx.coroutines.launch16import timber.log.Timber17class MainActivity : AppCompatActivity() {18    override fun onCreate(savedInstanceState: Bundle?) {19        super.onCreate(savedInstanceState)20        setContentView(R.layout.activity_main)21        if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {22            requestPermissions(arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 1000)23            return24        }25        testThreads()26    }27    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {28        super.onRequestPermissionsResult(requestCode, permissions, grantResults)29        testThreads()30    }31    private fun testThreads() {32        Timber.plant(CustomLog())33        wait(5) {34            coroutinesTest()35            runnableTest()36            threadTest()37        }38        whoIsFirst { result ->39            Timber.d("MainActivity_TAG: onCreate: $result")40        }41        rxJavaTest()42    }43    private fun threadTest() {44        Timber.d("MainActivity_TAG: threadTest: ")45        for (i in 1..10) {46            Thread {47                Timber.d("MainActivity_TAG: threadTest: Thread $i")48            }.start()49        }50    }51    private fun runnableTest() {52        Timber.d("MainActivity_TAG: runnableTest: ")53        for (i in 1..10) {54            Runnable {55                Timber.d("MainActivity_TAG: runnableTest: Runnable $i")56            }.run()57        }58    }59    private fun coroutinesTest() {60        Timber.d("MainActivity_TAG: coroutinesTest: ")61        for (i in 1..10) {62            GlobalScope.launch {63                Timber.d("MainActivity_TAG: coroutinesTest: coroutine $i")64            }65        }66    }67    private fun wait(seconds: Int, onDone: () -> Unit) = GlobalScope.launch {68        Timber.d("MainActivity_TAG: wait: $seconds seconds")69        delay((seconds * 1000).toLong())70        onDone()71    }72    private fun whoIsFirst(myOnDoneFunction: (String) -> Unit) = GlobalScope.launch {73        var place = 074        Thread {75            place++76            myOnDoneFunction("Thread Finished: $place")77        }.start()78        Runnable {79            place++80            myOnDoneFunction("Runnable Finished: $place")81        }.run()82        GlobalScope.launch {83            place++84            myOnDoneFunction("CoRoutines Finished: $place")85        }86    }87    private fun rxJavaTest() {88        Timber.d("MainActivity_TAG: rxJavaTest: ")89        Observable.just("one", "two", "three", "four", "five")90            .subscribeOn(Schedulers.io())91            .observeOn(AndroidSchedulers.mainThread())92            .doAfterNext {93                Timber.d("MainActivity_TAG: rxJavaTest: doAfterNext: $it")94            }95            .skip(3)96            .subscribe(object: Observer<String>{97                override fun onComplete() {98                    Timber.d("MainActivity_TAG: onComplete: ")99                }100                override fun onSubscribe(d: Disposable?) {101                    Timber.d("MainActivity_TAG: onSubscribe: ")102                }103                override fun onNext(t: String?) {104                    Timber.d("MainActivity_TAG: onNext: $t")105                }106                override fun onError(e: Throwable?) {107                    Timber.d("MainActivity_TAG: onError: ")108                }109            })110    }111}...

StatTest.kt

Source:StatTest.kt

1package studio.forface.covid.domain.entity2import com.soywiz.klock.DateTime3import com.soywiz.klock.hours4import kotlinx.coroutines.test.runBlockingTest5import studio.forface.covid.test.CoroutinesTest6import studio.forface.covid.test.coroutinesTest7import kotlin.test.Test8import kotlin.test.assertEquals9/**10 * __Unit__ test suite for [Stat]11 * @author Davide Farella12 */13internal class StatTest : CoroutinesTest by coroutinesTest {14    @Test15    fun `diff works correctly with updated stats`() = runBlockingTest {16        // GIVEN17        val now = DateTime.now()18        val stats = listOf(19            Stat(99, 44, 65, now),20            Stat(75, 40, 63, now - 3.hours),21            Stat(72, 39, 53, now - 6.hours),22            Stat(60, 22, 51, now - 9.hours),23            Stat(54, 14, 20, now - 12.hours),24            Stat(41, 10, 16, now - 15.hours)25        )26        // WHEN27        val diff1 = stats % 4.hours...

CoroutineOne.kt

Source:CoroutineOne.kt

...8    }9    private fun setView() {10        GlobalScope.launch(Dispatchers.Main) {11            try {12                //Log.d("CoroutinesTest:", fun1())13                Log.d("CoroutinesTest:", fun2())14                fun21()15                Log.d("CoroutinesTest:", fun3())16                fun31()17                Log.d("CoroutinesTest:", fun4())18                Log.d("CoroutinesTest:", "finished")19            } catch (e: Exception) {20                e.printStackTrace()21            } finally {22                Log.d("CoroutinesTest:", "finally printed")23            }24        }25    }26    private fun setView2() {27        Coroutines.main {28            try {29                Log.d("CoroutinesTest:", fun1())30                Log.d("CoroutinesTest:", fun2())31                Log.d("CoroutinesTest:", fun3())32                Log.d("CoroutinesTest:", "finished")33            } catch (c: Exception) {34            } finally {35                Log.d("CoroutinesTest:", "printed")36            }37        }38    }39    private suspend fun fun1(): String {40        delay(2000)41        return "Test 1"42    }43    private suspend fun fun2(): String {44        withContext(Dispatchers.IO) {45            delay(2000)46        }47        return "Test 2"48    }49    private suspend fun fun21() {50        withContext(Dispatchers.Main) {51            delay(2000)52            Log.d("CoroutinesTest:", "fun21")53        }54    }55    private suspend fun fun3(): String {56        withContext(Dispatchers.Main) {57            delay(4000)58        }59        return "Test 3"60    }61    private suspend fun fun31(): String {62        GlobalScope.launch(Dispatchers.Main) {63            delay(4000)64        }65        return "Test 3"66    }...

CoroutinesTCKTest.kt

Source:CoroutinesTCKTest.kt

1/*2 * Copyright 2019 Red Hat, Inc.3 *4 * All rights reserved. This program and the accompanying materials5 * are made available under the terms of the Eclipse Public License v1.06 * and Apache License v2.0 which accompanies this distribution.7 *8 * The Eclipse Public License is available at9 * http://www.eclipse.org/legal/epl-v10.html10 *11 * The Apache License v2.0 is available at12 * http://www.opensource.org/licenses/apache2.0.php13 *14 * You may elect to redistribute this code under either of these licenses.15 */16package io.vertx.lang.kotlin.test17import io.vertx.codegen.testmodel.TestInterface18import io.vertx.codegen.testmodel.TestInterfaceImpl19import io.vertx.kotlin.codegen.testmodel.methodWithHandlerAsyncResultStringAwait20import kotlinx.coroutines.Dispatchers21import kotlinx.coroutines.GlobalScope22import kotlinx.coroutines.async23import org.junit.Assert.fail24import org.junit.Test25import kotlin.test.assertEquals26/**27 * @author <a href="mailto:julien@julienviet.com">Julien Viet</a>28 */29class CoroutinesTCKTest {30  private val tck: TestInterface = TestInterfaceImpl()31  @Test32  fun testAsyncResultSuccess() {33    val s = coroutinesTest { tck.methodWithHandlerAsyncResultStringAwait(false) }34    assertEquals("quux!", s)35  }36  @Test37  fun testAsyncResultFailure() {38    try {39      coroutinesTest { tck.methodWithHandlerAsyncResultStringAwait(true) }40      fail()41    } catch (e: Exception) {42      assertEquals("foobar!", e.message)43    }44  }45  private fun <T> coroutinesTest(block: suspend () -> T) : T {46    val deferred = GlobalScope.async(Dispatchers.Unconfined) {47      block()48    }49    return deferred.getCompleted()50  }51}...

CommonUtilsTest.kt

Source:CommonUtilsTest.kt

1package studio.forface.covid.domain.util2import kotlinx.coroutines.test.runBlockingTest3import kotlinx.coroutines.withTimeoutOrNull4import studio.forface.covid.test.CoroutinesTest5import studio.forface.covid.test.assertBetween6import studio.forface.covid.test.coroutinesTest7import kotlin.test.Test8import kotlin.time.milliseconds9internal class CommonUtilsTest : CoroutinesTest by coroutinesTest {10    @Test11    fun `repeatCatching runs correctly`() = runBlockingTest {12        // GIVEN13        val totalRunTime = 5014        val refreshInterval = 115        val errorInterval = 516        val errorEvery = 317        var count = 018        val block = { i: Int ->19            count = i20            // Throw exception every 3 iterations for verify error interval21            if (i % errorEvery == 0) throw IllegalStateException()22        }23        // WHEN...

TestDependencies.kt

Source:TestDependencies.kt

1object TestDependencies {2    private const val junit = "junit:junit:${Versions.junit}"3    private const val mockitoKotlin = "com.nhaarman.mockitokotlin2:mockito-kotlin:${Versions.mockito}"4    private const val mockitoCore = "org.mockito:mockito-core:${Versions.mockitoCore}"5    private const val coroutinesTest = "org.jetbrains.kotlinx:kotlinx-coroutines-test:${Versions.coroutinesTest}"6    private const val coreTesting = "androidx.arch.core:core-testing:${Versions.coreTesting}"7    private const val mockWebServer = "com.squareup.okhttp3:mockwebserver:${Versions.mockWebServer}"8    private const val roomTest = "androidx.room:room-testing:${Versions.room}"9    val testLibraries = arrayListOf<String>().apply {10        add(junit)11        add(mockitoKotlin)12        add(mockitoCore)13        add(coroutinesTest)14        add(coreTesting)15        add(mockWebServer)16        add(roomTest)17    }18}...

CoroutinesTest.kt

Source:CoroutinesTest.kt

...5import kotlinx.coroutines.test.resetMain6import kotlinx.coroutines.test.setMain7import kotlin.test.AfterTest8import kotlin.test.BeforeTest9interface CoroutinesTest {10    val mainThreadSurrogate: ExecutorCoroutineDispatcher11    @BeforeTest12    fun setUp() {13        Dispatchers.setMain(mainThreadSurrogate)14    }15    @AfterTest16    fun tearDown() {17        Dispatchers.resetMain() // reset main dispatcher to the original Main dispatcher18        mainThreadSurrogate.close()19    }20}21val coroutinesTest get() = object : CoroutinesTest {22    override val mainThreadSurrogate = newSingleThreadContext("UI thread")23}...

CoroutinesTest

Using AI Code Generation

1@RunWith(AndroidJUnit4::class)2class MainActivityTest {3    val activityRule = ActivityScenarioRule(MainActivity::class.java)4    fun test_isActivityInView() {5        onView(withId(R.id.main)).check(matches(isDisplayed()))6    }7    fun test_visibility_title_nextButton() {8        onView(withId(R.id.activity_main_title)).check(matches(isDisplayed()))9        onView(withId(R.id.button_next_activity)).check(matches(isDisplayed()))10    }11    fun test_isTitleTextDisplayed() {12        onView(withId(R.id.activity_main_title)).check(matches(withText(R.string.text_mainactivity)))13    }14    fun test_navSecondaryActivity() {15        onView(withId(R.id.button_next_activity)).perform(click())16        onView(withId(R.id.secondary)).check(matches(isDisplayed()))17    }18}19fun test_isTitleTextDisplayed() {20    onView(withId(R.id.activity_main_title)).check(matches(withText(R.string.text_mainactivity)))21}22at dalvik.system.VMStack.getThreadStackTrace(Native Method)23at java.lang.Thread.getStackTrace(Thread.java:1538)24at androidx.test.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:91)25at androidx.test.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:55)26at androidx.test.espresso.ViewInteraction.waitForAndHandleInteractionResults(ViewInteraction.java:312)27at androidx.test.espresso.ViewInteraction.check(ViewInteraction.java:297)28at com.example.android.testing.espresso.BasicSample.MainActivityTest.test_isTitleTextDisplayed(MainActivityTest.kt:48)29at java.lang.reflect.Method.invoke(Native Method)30at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)31at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)32at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod

CoroutinesTest

Using AI Code Generation

1@RunWith(JUnit4::class)2class CoroutinesTestRule(private val testDispatcher: TestCoroutineDispatcher = TestCoroutineDispatcher()) :3    TestWatcher() {4    val testCoroutineScope = TestCoroutineScope(testDispatcher)5    override fun starting(description: Description?) {6        super.starting(description)7        Dispatchers.setMain(testDispatcher)8    }9    override fun finished(description: Description?) {10        super.finished(description)11        Dispatchers.resetMain()12        testCoroutineScope.cleanupTestCoroutines()13    }14}15val coroutinesTestRule = CoroutinesTestRule()16fun `test function`() = testCoroutineScope.runBlockingTest {17}18fun `test function`() {19    val testDispatcher = TestCoroutineDispatcher()20    val testScope = TestCoroutineScope(testDispatcher)21    testScope.runBlockingTest {22    }23}24fun `test function`() {25    val testScope = TestCoroutineScope()26    testScope.runBlockingTest {27    }28}29fun `test function`() {30    val testExceptionHandler = TestCoroutineExceptionHandler()31    val testScope = TestCoroutineScope(testExceptionHandler)32    testScope.runBlockingTest {33    }34}35fun `test function`() {36    val testDispatcher = TestCoroutineDispatcher()37    val testExceptionHandler = TestCoroutineExceptionHandler()38    val testScope = TestCoroutineScope(testDispatcher + testExceptionHandler)39    testScope.runBlockingTest {40    }41}42fun `test function`() {43    val testDispatcher = TestCoroutineDispatcher()

CoroutinesTest

Using AI Code Generation

1@RunWith(AndroidJUnit4::class)2class MainActivityTest {3    val instantTaskExecutorRule = InstantTaskExecutorRule()4    val mainActivityTestRule = ActivityScenarioRule(MainActivity::class.java)5    val coroutineTestRule = CoroutineTestRule()6    fun testLaunchFragment() {7        onView(withId(R.id.nav_host_fragment)).check(matches(isDisplayed()))8    }9    fun testLaunchFragmentWithCoroutine() {10        coroutineTestRule.testDispatcher.runBlockingTest {11            onView(withId(R.id.nav_host_fragment)).check(matches(isDisplayed()))12        }13    }14}

CoroutinesTest

Using AI Code Generation

1@RunWith(AndroidJUnit4::class)2class CoroutinesTest {3    private val testDispatcher = TestCoroutineDispatcher()4    private val testScope = TestCoroutineScope(testDispatcher)5    var instantTaskExecutorRule = InstantTaskExecutorRule()6    fun setup() {7        Dispatchers.setMain(testDispatcher)8    }9    fun tearDown() {10        Dispatchers.resetMain()11        testScope.cleanupTestCoroutines()12    }13    fun testCoroutine() = testScope.runBlockingTest {14        val viewModel = MainViewModel()15        viewModel.getData()16        delay(2000)17        Assert.assertEquals("Kotlin", viewModel.data.value)18    }19}20@RunWith(AndroidJUnit4::class)21class LiveDataTestUtilTest {22    var instantTaskExecutorRule = InstantTaskExecutorRule()23    fun testLiveData() {24        val liveData = MutableLiveData<String>()25        val observer = mock<Observer<String>>()26        liveData.observeForever(observer)27        verify(observer).onChanged("Kotlin")28    }29}30@RunWith(AndroidJUnit4::class)31class ViewModelTest {32    private val testDispatcher = TestCoroutineDispatcher()33    private val testScope = TestCoroutineScope(testDispatcher)34    var instantTaskExecutorRule = InstantTaskExecutorRule()35    fun setup() {36        Dispatchers.setMain(testDispatcher)37    }38    fun tearDown() {39        Dispatchers.resetMain()40        testScope.cleanupTestCoroutines()41    }42    fun testViewModel() = testScope.runBlockingTest {43        val viewModel = MainViewModel()44        val observer = mock<Observer<String>>()45        viewModel.data.observeForever(observer)46        viewModel.getData()

CoroutinesTest

Using AI Code Generation

1@RunWith(AndroidJUnit4::class)2class CoroutinesTest {3    val testCoroutineRule = TestCoroutineRule()4    fun testCoroutine() {5        testCoroutineRule.runBlockingTest {6            delay(1000)7            assertTrue(true)8        }9    }10}11class TestCoroutineRule : TestWatcher() {12    val testDispatcher = TestCoroutineDispatcher()13    override fun starting(description: Description?) {14        super.starting(description)15        Dispatchers.setMain(testDispatcher)16    }17    override fun finished(description: Description?) {18        super.finished(description)19        Dispatchers.resetMain()20        testDispatcher.cleanupTestCoroutines()21    }22    fun runBlockingTest(block: suspend TestCoroutineScope.() -> Unit) =23        testDispatcher.runBlockingTest { block() }24}25class TestCoroutineDispatcher : CoroutineDispatcher(), Delay {26    private val testCoroutineScope = TestCoroutineScope()27    override fun dispatch(context: CoroutineContext, block: Runnable) {28        testCoroutineScope.launch { block.run() }29    }30    override fun scheduleResumeAfterDelay(31    ) {32        testCoroutineScope.advanceTimeBy(timeMillis)33    }34    fun cleanupTestCoroutines() = testCoroutineScope.cleanupTestCoroutines()35}36class TestCoroutineScope : CoroutineScope {37    val testCoroutineDispatcher = TestCoroutineDispatcher()38    private val job = Job()39        get() = job + testCoroutineDispatcher40    fun cleanupTestCoroutines() {41        job.cancel()42    }43}44class TestCoroutineScope : CoroutineScope {45    val testCoroutineDispatcher = TestCoroutineDispatcher()46    private val job = Job()47        get() = job + testCoroutineDispatcher48    fun cleanupTestCoroutines() {49        job.cancel()50    }51}52class TestCoroutineScope : CoroutineScope {53    val testCoroutineDispatcher = TestCoroutineDispatcher()54    private val job = Job()55        get() = job + testCoroutineDispatcher56    fun cleanupTestCoroutines() {57        job.cancel()58    }59}60class TestCoroutineScope : CoroutineScope {

CoroutinesTest

Using AI Code Generation

1@RunWith(RobolectricTestRunner::class)2@Config(manifest = Config.NONE)3class TestCoroutineRuleTest {4    val testCoroutineRule = TestCoroutineRule()5    fun `test coroutine`() = testCoroutineRule.runBlockingTest {6    }7}

CoroutinesTest

Using AI Code Generation

1@RunWith(AndroidJUnit4::class)2class MyViewModelTest {3    val instantExecutorRule = InstantTaskExecutorRule()4    val mainCoroutineRule = MainCoroutineRule()5    val hiltRule = HiltAndroidRule(this)6    val hiltAndroidTestRule = HiltAndroidTestRule(this)7    fun setup() {8        hiltAndroidTestRule.inject()9        MockKAnnotations.init(this)10    }11    fun testMyViewModel() {12        mainCoroutineRule.runBlockingTest {13            val myViewModel = MyViewModel(myRepository)14            val myData = MyData("MyData")15            coEvery { myRepository.getMyData() } returns myData16            myViewModel.getMyData()17            Assert.assertEquals(myViewModel.myData.getOrAwaitValue(), myData)18        }19    }20}21class MainCoroutineRule(val dispatcher: TestCoroutineDispatcher = TestCoroutineDispatcher()) :22    TestWatcher() {23    override fun starting(description: Description?) {24        super.starting(description)25        Dispatchers.setMain(dispatcher)26    }27    override fun finished(description: Description?) {28        super.finished(description)29        Dispatchers.resetMain()30        dispatcher.cleanupTestCoroutines()31    }32    fun runBlockingTest(block: suspend TestCoroutineScope.() -> Unit) =33        dispatcher.runBlockingTest {34            block()35        }36}37class InstantTaskExecutorRule : TestWatcher() {38    override fun starting(description: Description?) {39        super.starting(description)40        InstantTaskExecutorRule().apply {

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