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Fix Dimensions not updating on Android #31973
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168 changes: 168 additions & 0 deletions
168
ReactAndroid/src/test/java/com/facebook/react/modules/deviceinfo/DeviceInfoModuleTest.java
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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 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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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; | ||
import java.util.Arrays; | ||
import java.util.List; | ||
import junit.framework.TestCase; | ||
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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@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); | ||
} | ||
} |
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What was the logic behind
WritableNativeMap
andWritableMap
? Sorry I'm not familiar with the differenceThere was a problem hiding this comment.
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WritableNativeMap
is an implementation of theWritableMap
interface (and that is the implementation that is returned fromDisplayMetricsHolder
). But in Java-only test code,WritableNativeMap
is not supported and needs to be switched out forJavaOnlyMap
. So in order to test this class, it needs to depend onWritableMap
instead.