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Fix Dimensions not updating on Android
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ReactAndroid/src/test/java/com/facebook/react/modules/deviceinfo/DeviceInfoModuleTest.java
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
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| package com.facebook.react.modules.deviceinfo; | ||
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| import com.facebook.react.bridge.Arguments; | ||
| import com.facebook.react.bridge.CatalystInstance; | ||
| import com.facebook.react.bridge.JavaOnlyMap; | ||
| import com.facebook.react.bridge.ReactApplicationContext; | ||
| import com.facebook.react.bridge.ReactTestHelper; | ||
| import com.facebook.react.bridge.WritableMap; | ||
| import com.facebook.react.modules.core.DeviceEventManagerModule; | ||
| import com.facebook.react.uimanager.DisplayMetricsHolder; | ||
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| import junit.framework.TestCase; | ||
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| import org.junit.After; | ||
| import org.junit.Before; | ||
| import org.junit.Rule; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
| import org.mockito.ArgumentCaptor; | ||
| import org.mockito.invocation.InvocationOnMock; | ||
| import org.mockito.stubbing.Answer; | ||
| import org.powermock.core.classloader.annotations.PowerMockIgnore; | ||
| import org.powermock.core.classloader.annotations.PrepareForTest; | ||
| import org.powermock.modules.junit4.rule.PowerMockRule; | ||
| import org.robolectric.RobolectricTestRunner; | ||
| import org.robolectric.RuntimeEnvironment; | ||
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|
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| import java.util.Arrays; | ||
| import java.util.List; | ||
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| import static org.fest.assertions.api.Assertions.assertThat; | ||
| import static org.mockito.ArgumentMatchers.eq; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.spy; | ||
| import static org.mockito.Mockito.times; | ||
| import static org.mockito.Mockito.verify; | ||
| import static org.mockito.Mockito.verifyNoMoreInteractions; | ||
| import static org.mockito.Mockito.when; | ||
| import static org.powermock.api.mockito.PowerMockito.mockStatic; | ||
|
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| @RunWith(RobolectricTestRunner.class) | ||
| @PrepareForTest({ | ||
| Arguments.class, | ||
| DisplayMetricsHolder.class | ||
| }) | ||
| @PowerMockIgnore({"org.mockito.*", "org.robolectric.*", "androidx.*", "android.*"}) | ||
| public class DeviceInfoModuleTest extends TestCase { | ||
|
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| @Rule | ||
| public PowerMockRule rule = new PowerMockRule(); | ||
|
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| private DeviceInfoModule mDeviceInfoModule; | ||
| private DeviceEventManagerModule.RCTDeviceEventEmitter mRCTDeviceEventEmitterMock; | ||
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| private WritableMap fakePortraitDisplayMetrics; | ||
| private WritableMap fakeLandscapeDisplayMetrics; | ||
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| @Before | ||
| public void setUp() { | ||
| initTestData(); | ||
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| mockStatic(DisplayMetricsHolder.class); | ||
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| mRCTDeviceEventEmitterMock = mock(DeviceEventManagerModule.RCTDeviceEventEmitter.class); | ||
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| final ReactApplicationContext context = spy(new ReactApplicationContext(RuntimeEnvironment.application)); | ||
| CatalystInstance catalystInstanceMock = ReactTestHelper.createMockCatalystInstance(); | ||
| context.initializeWithInstance(catalystInstanceMock); | ||
| when(context.getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)) | ||
| .thenReturn(mRCTDeviceEventEmitterMock); | ||
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| mDeviceInfoModule = new DeviceInfoModule(context); | ||
| } | ||
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| @After | ||
| public void teardown() { | ||
| DisplayMetricsHolder.setWindowDisplayMetrics(null); | ||
| DisplayMetricsHolder.setScreenDisplayMetrics(null); | ||
| } | ||
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| @Test | ||
| public void test_itDoesNotEmitAnEvent_whenDisplayMetricsNotChanged() { | ||
| givenDisplayMetricsHolderContains(fakePortraitDisplayMetrics); | ||
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| mDeviceInfoModule.getTypedExportedConstants(); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
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| verifyNoMoreInteractions(mRCTDeviceEventEmitterMock); | ||
| } | ||
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| @Test | ||
| public void test_itEmitsOneEvent_whenDisplayMetricsChangedOnce() { | ||
| givenDisplayMetricsHolderContains(fakePortraitDisplayMetrics); | ||
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| mDeviceInfoModule.getTypedExportedConstants(); | ||
| givenDisplayMetricsHolderContains(fakeLandscapeDisplayMetrics); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
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| verifyUpdateDimensionsEventsEmitted(mRCTDeviceEventEmitterMock, fakeLandscapeDisplayMetrics); | ||
| } | ||
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| @Test | ||
| public void test_itEmitsJustOneEvent_whenUpdateRequestedMultipleTimes() { | ||
| givenDisplayMetricsHolderContains(fakePortraitDisplayMetrics); | ||
| mDeviceInfoModule.getTypedExportedConstants(); | ||
| givenDisplayMetricsHolderContains(fakeLandscapeDisplayMetrics); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
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| verifyUpdateDimensionsEventsEmitted(mRCTDeviceEventEmitterMock, fakeLandscapeDisplayMetrics); | ||
| } | ||
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| @Test | ||
| public void test_itEmitsMultipleEvents_whenDisplayMetricsChangedBetweenUpdates() { | ||
| givenDisplayMetricsHolderContains(fakePortraitDisplayMetrics); | ||
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| mDeviceInfoModule.getTypedExportedConstants(); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
| givenDisplayMetricsHolderContains(fakeLandscapeDisplayMetrics); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
| givenDisplayMetricsHolderContains(fakePortraitDisplayMetrics); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
| givenDisplayMetricsHolderContains(fakeLandscapeDisplayMetrics); | ||
| mDeviceInfoModule.emitUpdateDimensionsEvent(); | ||
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| verifyUpdateDimensionsEventsEmitted(mRCTDeviceEventEmitterMock, | ||
| fakeLandscapeDisplayMetrics, | ||
| fakePortraitDisplayMetrics, | ||
| fakeLandscapeDisplayMetrics | ||
| ); | ||
| } | ||
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| private static void givenDisplayMetricsHolderContains(final WritableMap fakeDisplayMetrics) { | ||
| when(DisplayMetricsHolder.getDisplayMetricsWritableMap(1.0)) | ||
| .thenReturn(fakeDisplayMetrics); | ||
| } | ||
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| private static void verifyUpdateDimensionsEventsEmitted( | ||
| DeviceEventManagerModule.RCTDeviceEventEmitter emitter, | ||
| WritableMap... expectedEvents | ||
| ) { | ||
| List<WritableMap> expectedEventList = Arrays.asList(expectedEvents); | ||
| ArgumentCaptor<WritableMap> captor = ArgumentCaptor.forClass(WritableMap.class); | ||
| verify(emitter, times(expectedEventList.size())).emit(eq("didUpdateDimensions"), captor.capture()); | ||
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| List<WritableMap> actualEvents = captor.getAllValues(); | ||
| assertThat(actualEvents).isEqualTo(expectedEventList); | ||
| } | ||
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| private void initTestData() { | ||
| mockStatic(Arguments.class); | ||
| when(Arguments.createMap()) | ||
| .thenAnswer( | ||
| new Answer<Object>() { | ||
| @Override | ||
| public Object answer(InvocationOnMock invocation) throws Throwable { | ||
| return new JavaOnlyMap(); | ||
| } | ||
| }); | ||
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| fakePortraitDisplayMetrics = Arguments.createMap(); | ||
| fakePortraitDisplayMetrics.putInt("width", 100); | ||
| fakePortraitDisplayMetrics.putInt("height", 200); | ||
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| fakeLandscapeDisplayMetrics = Arguments.createMap(); | ||
| fakeLandscapeDisplayMetrics.putInt("width", 200); | ||
| fakeLandscapeDisplayMetrics.putInt("height", 100); | ||
| } | ||
| } |