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Introduced helpers for tests

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This commit is contained in:
Sad Ellie 2022-12-08 13:10:09 +04:00
parent aad5c40ffd
commit 7d2917d942
2 changed files with 68 additions and 38 deletions
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61
app/src/test/java/com/sadellie/unitto/CoroutinesTestUtils.kt Normal file
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@ -0,0 +1,61 @@
/*
* Unitto is a unit converter for Android
* Copyright (c) 2022 Elshan Agaev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.sadellie.unitto
import android.os.StrictMode
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.test.TestDispatcher
import kotlinx.coroutines.test.TestResult
import kotlinx.coroutines.test.TestScope
import kotlinx.coroutines.test.UnconfinedTestDispatcher
import kotlinx.coroutines.test.resetMain
import kotlinx.coroutines.test.runTest
import kotlinx.coroutines.test.setMain
import org.junit.Test
import org.junit.rules.TestWatcher
import org.junit.runner.Description
@ExperimentalCoroutinesApi
class CoroutineTestRule(private val dispatcher: TestDispatcher = UnconfinedTestDispatcher()) :
TestWatcher() {
override fun starting(description: Description) {
super.starting(description)
Dispatchers.setMain(dispatcher)
}
override fun finished(description: Description) {
super.finished(description)
Dispatchers.resetMain()
}
}
@OptIn(ExperimentalCoroutinesApi::class)
@Test
fun testInViewModel(testBody: suspend TestScope.(CoroutineScope) -> Unit): TestResult = runTest {
// https://github.com/robolectric/robolectric/issues/6377#issuecomment-843779001
StrictMode.enableDefaults()
val testDispatcher = UnconfinedTestDispatcher(testScheduler)
Dispatchers.setMain(testDispatcher)
testBody(CoroutineScope(testDispatcher))
Dispatchers.resetMain()
}

43
app/src/test/java/com/sadellie/unitto/screens/MainViewModelTest.kt
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@ -18,8 +18,8 @@
package com.sadellie.unitto.screens
import android.os.StrictMode
import androidx.room.Room
import com.sadellie.unitto.CoroutineTestRule
import com.sadellie.unitto.data.KEY_0
import com.sadellie.unitto.data.KEY_1
import com.sadellie.unitto.data.KEY_2
@ -46,44 +46,21 @@ import com.sadellie.unitto.data.units.AllUnitsRepository
import com.sadellie.unitto.data.units.database.MyBasedUnitDatabase
import com.sadellie.unitto.data.units.database.MyBasedUnitsRepository
import com.sadellie.unitto.screens.main.MainViewModel
import kotlinx.coroutines.CoroutineScope
import com.sadellie.unitto.testInViewModel
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.test.TestDispatcher
import kotlinx.coroutines.test.UnconfinedTestDispatcher
import kotlinx.coroutines.test.resetMain
import kotlinx.coroutines.test.runTest
import kotlinx.coroutines.test.setMain
import org.junit.Assert.assertEquals
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import org.junit.rules.TestWatcher
import org.junit.runner.Description
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.RuntimeEnvironment
import org.robolectric.annotation.Config
@ExperimentalCoroutinesApi
class CoroutineTestRule(private val dispatcher: TestDispatcher = UnconfinedTestDispatcher()) :
TestWatcher() {
override fun starting(description: Description) {
super.starting(description)
Dispatchers.setMain(dispatcher)
}
override fun finished(description: Description) {
super.finished(description)
Dispatchers.resetMain()
}
}
@OptIn(ExperimentalCoroutinesApi::class)
@Config(manifest = Config.NONE)
@RunWith(RobolectricTestRunner::class)
@ -112,12 +89,8 @@ class MainViewModelTest {
}
@Test
fun processInputTest() = runTest {
// https://github.com/robolectric/robolectric/issues/6377#issuecomment-843779001
StrictMode.enableDefaults()
val testDispatcher = UnconfinedTestDispatcher(testScheduler)
Dispatchers.setMain(testDispatcher)
viewModel.mainFlow.launchIn(CoroutineScope(testDispatcher))
fun processInputTest() = testInViewModel { coroutineScope ->
viewModel.mainFlow.launchIn(coroutineScope)
/**
* For simplicity comments will have structure:
@ -360,12 +333,8 @@ class MainViewModelTest {
}
@Test
fun deleteSymbolTest() = runTest {
// https://github.com/robolectric/robolectric/issues/6377#issuecomment-843779001
StrictMode.enableDefaults()
val testDispatcher = UnconfinedTestDispatcher(testScheduler)
Dispatchers.setMain(testDispatcher)
viewModel.mainFlow.launchIn(CoroutineScope(testDispatcher))
fun deleteSymbolTest() = testInViewModel { coroutineScope ->
viewModel.mainFlow.launchIn(coroutineScope)
listOf(
KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0,