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Refactoring android tests to use utils/android (pt4). (#396)
* Refactoring android tests to use utils/android (pt4). * Fix coverage.
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112 changes: 52 additions & 60 deletions
112
formula-android-tests/src/test/java/com/instacart/formula/FragmentLifecycleTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,93 +1,85 @@ | ||
| package com.instacart.formula | ||
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||
| import android.content.Context | ||
| import android.content.Intent | ||
| import android.os.Bundle | ||
| import androidx.test.core.app.ActivityScenario | ||
| import androidx.test.core.app.ApplicationProvider | ||
| import androidx.test.ext.junit.runners.AndroidJUnit4 | ||
| import com.google.common.truth.Truth.assertThat | ||
| import com.instacart.formula.android.ActivityStore | ||
| import com.instacart.formula.android.Feature | ||
| import com.instacart.formula.android.FeatureFactory | ||
| import com.instacart.formula.android.FormulaFragment | ||
| import com.instacart.formula.android.FragmentStore | ||
| import com.instacart.formula.android.ViewFactory | ||
| import com.instacart.formula.test.TestFragmentActivity | ||
| import com.instacart.formula.test.TestFragmentLifecycleCallback | ||
| import com.instacart.testutils.android.TestFragmentLifecycleCallback | ||
| import com.instacart.formula.test.TestLifecycleKey | ||
| import com.instacart.testutils.android.R as TestR | ||
| import io.reactivex.rxjava3.core.Observable | ||
| import org.junit.Rule | ||
| import com.instacart.testutils.android.NoOpFeatureFactory | ||
| import com.instacart.testutils.android.TestFormulaActivity | ||
| import com.instacart.testutils.android.TestViewFactory | ||
| import com.instacart.testutils.android.showFragment | ||
| import com.instacart.testutils.android.withFormulaAndroid | ||
| import org.junit.Test | ||
| import org.junit.runner.RunWith | ||
|
|
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| @RunWith(AndroidJUnit4::class) | ||
| class FragmentLifecycleTest { | ||
|
|
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| private lateinit var lifecycleCallback: TestFragmentLifecycleCallback | ||
|
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| @get:Rule val formulaRule = TestFormulaRule(initFormula = { app -> | ||
| FormulaAndroid.init(app) { | ||
| activity<TestFragmentActivity> { | ||
| lifecycleCallback = TestFragmentLifecycleCallback() | ||
| ActivityStore( | ||
| configureActivity = { activity -> | ||
| activity.initialKey = TestLifecycleKey() | ||
| }, | ||
| fragmentStore = FragmentStore.init { | ||
| val featureFactory = object : FeatureFactory<Unit, TestLifecycleKey> { | ||
| override fun initialize(dependencies: Unit, key: TestLifecycleKey): Feature { | ||
| return Feature( | ||
| state = Observable.empty(), | ||
| viewFactory = ViewFactory.fromLayout(TestR.layout.test_fragment_layout) { | ||
| featureView(lifecycleCallback) {} | ||
| } | ||
| ) | ||
| } | ||
| } | ||
| bind(featureFactory) | ||
| }, | ||
| ) | ||
| private fun runTest( | ||
| continuation: (ActivityScenario<TestFormulaActivity>, TestFragmentLifecycleCallback) -> Unit | ||
| ) { | ||
| val lifecycleCallback = TestFragmentLifecycleCallback() | ||
| withFormulaAndroid( | ||
| configure = { | ||
| activity<TestFormulaActivity> { | ||
| ActivityStore( | ||
| fragmentStore = FragmentStore.init { | ||
| val featureFactory = NoOpFeatureFactory<TestLifecycleKey>( | ||
| viewFactory = TestViewFactory(lifecycleCallback) | ||
| ) | ||
| bind(featureFactory) | ||
| }, | ||
| ) | ||
| } | ||
| } | ||
| ) { | ||
| val scenario = ActivityScenario.launch(TestFormulaActivity::class.java) | ||
| scenario.showFragment(TestLifecycleKey()) | ||
| continuation(scenario, lifecycleCallback) | ||
| } | ||
| }) | ||
| } | ||
|
|
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| @Test fun `creation callbacks`() { | ||
| ActivityScenario.launch(TestFragmentActivity::class.java) | ||
|
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| assertThat(lifecycleCallback.hasOnViewCreated).isTrue() | ||
| assertThat(lifecycleCallback.hasOnActivityCreated).isTrue() | ||
| assertThat(lifecycleCallback.hasOnStart).isTrue() | ||
| assertThat(lifecycleCallback.hasOnResume).isTrue() | ||
| runTest { _, lifecycleCallback -> | ||
| assertThat(lifecycleCallback.hasOnViewCreated).isTrue() | ||
| assertThat(lifecycleCallback.hasOnActivityCreated).isTrue() | ||
| assertThat(lifecycleCallback.hasOnStart).isTrue() | ||
| assertThat(lifecycleCallback.hasOnResume).isTrue() | ||
| } | ||
| } | ||
|
|
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| @Test fun `destroy callbacks`() { | ||
| val scenario = ActivityScenario.launch(TestFragmentActivity::class.java) | ||
| scenario.close() | ||
| runTest { scenario, lifecycleCallback -> | ||
| scenario.close() | ||
|
|
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| assertThat(lifecycleCallback.hasOnPauseEvent).isTrue() | ||
| assertThat(lifecycleCallback.hasOnStop).isTrue() | ||
| assertThat(lifecycleCallback.hasOnDestroyView).isTrue() | ||
| assertThat(lifecycleCallback.hasOnPauseEvent).isTrue() | ||
| assertThat(lifecycleCallback.hasOnStop).isTrue() | ||
| assertThat(lifecycleCallback.hasOnDestroyView).isTrue() | ||
| } | ||
| } | ||
|
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| @Test fun `save instance state callback`() { | ||
| val scenario = ActivityScenario.launch(TestFragmentActivity::class.java) | ||
|
|
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| assertThat(lifecycleCallback.hasOnSaveInstanceState).isFalse() | ||
| scenario.recreate() | ||
| assertThat(lifecycleCallback.hasOnSaveInstanceState).isTrue() | ||
| runTest { scenario, lifecycleCallback -> | ||
| assertThat(lifecycleCallback.hasOnSaveInstanceState).isFalse() | ||
| scenario.recreate() | ||
| assertThat(lifecycleCallback.hasOnSaveInstanceState).isTrue() | ||
| } | ||
| } | ||
|
|
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| @Test fun `low memory`() { | ||
| val scenario = ActivityScenario.launch(TestFragmentActivity::class.java) | ||
| scenario.onActivity { | ||
| val fragment = it.supportFragmentManager.fragments | ||
| .filterIsInstance<FormulaFragment>() | ||
| .first() | ||
| runTest { scenario, lifecycleCallback -> | ||
| scenario.onActivity { | ||
| val fragment = it.supportFragmentManager.fragments | ||
| .filterIsInstance<FormulaFragment>() | ||
| .first() | ||
|
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| fragment.onLowMemory() | ||
| fragment.onLowMemory() | ||
| } | ||
| assertThat(lifecycleCallback.hasCalledLowMemory).isTrue() | ||
| } | ||
| assertThat(lifecycleCallback.hasCalledLowMemory).isTrue() | ||
| } | ||
| } |
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