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Android | Testing Coroutines
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| plugins { | |
| ... | |
| } | |
| android { | |
| ... | |
| } | |
| dependencies { | |
| ... | |
| // KotlinX Coroutines for Testing | |
| testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.2' | |
| ... | |
| } |
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| package com.ahr.newsapp | |
| import kotlinx.coroutines.Dispatchers | |
| import kotlinx.coroutines.ExperimentalCoroutinesApi | |
| import kotlinx.coroutines.test.TestDispatcher | |
| import kotlinx.coroutines.test.UnconfinedTestDispatcher | |
| import kotlinx.coroutines.test.resetMain | |
| import kotlinx.coroutines.test.setMain | |
| import org.junit.rules.TestWatcher | |
| import org.junit.runner.Description | |
| @ExperimentalCoroutinesApi | |
| class MainDispatcherRule( | |
| private val testDispatcher: TestDispatcher = UnconfinedTestDispatcher() | |
| ) : TestWatcher() { | |
| override fun starting(description: Description) { | |
| Dispatchers.setMain(testDispatcher) | |
| } | |
| override fun finished(description: Description) { | |
| Dispatchers.resetMain() | |
| } | |
| } |
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| package com.ahr.newsapp.ui.detail | |
| import androidx.arch.core.executor.testing.InstantTaskExecutorRule | |
| import androidx.lifecycle.MutableLiveData | |
| import com.dicoding.newsapp.DataDummy | |
| import com.dicoding.newsapp.MainDispatcherRule | |
| import com.dicoding.newsapp.data.NewsRepository | |
| import com.dicoding.newsapp.getOrAwaitValue | |
| import kotlinx.coroutines.ExperimentalCoroutinesApi | |
| import kotlinx.coroutines.test.runTest | |
| import org.junit.Before | |
| import org.junit.Rule | |
| import org.junit.Test | |
| import org.junit.runner.RunWith | |
| import org.mockito.Mock | |
| import org.mockito.Mockito | |
| import org.mockito.Mockito.`when` | |
| import org.mockito.junit.MockitoJUnitRunner | |
| @ExperimentalCoroutinesApi | |
| @RunWith(MockitoJUnitRunner::class) | |
| class NewsDetailViewModelTest { | |
| ... | |
| @get:Rule | |
| val mainDispatcherRule = MainDispatcherRule() | |
| ... | |
| @Test | |
| fun `when bookmarkStatus false should call saveNews`() = runTest { | |
| ... | |
| } | |
| } |
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