| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.camera.core |
| |
| import android.content.Context |
| import android.graphics.Rect |
| import android.graphics.SurfaceTexture |
| import android.os.Build |
| import android.os.Handler |
| import android.os.HandlerThread |
| import android.os.Looper.getMainLooper |
| import android.util.Rational |
| import android.util.Size |
| import android.view.Surface |
| import androidx.camera.core.CameraEffect.IMAGE_CAPTURE |
| import androidx.camera.core.CameraEffect.PREVIEW |
| import androidx.camera.core.CameraEffect.VIDEO_CAPTURE |
| import androidx.camera.core.CameraSelector.LENS_FACING_FRONT |
| import androidx.camera.core.MirrorMode.MIRROR_MODE_ON_FRONT_ONLY |
| import androidx.camera.core.SurfaceRequest.TransformationInfo |
| import androidx.camera.core.impl.CameraFactory |
| import androidx.camera.core.impl.CameraThreadConfig |
| import androidx.camera.core.impl.OptionsBundle |
| import androidx.camera.core.impl.PreviewConfig |
| import androidx.camera.core.impl.SessionConfig |
| import androidx.camera.core.impl.StreamSpec |
| import androidx.camera.core.impl.UseCaseConfig |
| import androidx.camera.core.impl.UseCaseConfigFactory |
| import androidx.camera.core.impl.utils.executor.CameraXExecutors |
| import androidx.camera.core.impl.utils.executor.CameraXExecutors.mainThreadExecutor |
| import androidx.camera.core.internal.CameraUseCaseAdapter |
| import androidx.camera.core.internal.utils.SizeUtil |
| import androidx.camera.core.resolutionselector.ResolutionSelector |
| import androidx.camera.testing.CameraUtil |
| import androidx.camera.testing.CameraXUtil |
| import androidx.camera.testing.fakes.FakeAppConfig |
| import androidx.camera.testing.fakes.FakeCamera |
| import androidx.camera.testing.fakes.FakeCameraDeviceSurfaceManager |
| import androidx.camera.testing.fakes.FakeCameraFactory |
| import androidx.camera.testing.fakes.FakeCameraInfoInternal |
| import androidx.camera.testing.fakes.FakeSurfaceEffect |
| import androidx.camera.testing.fakes.FakeSurfaceProcessorInternal |
| import androidx.camera.testing.fakes.FakeUseCase |
| import androidx.test.core.app.ApplicationProvider |
| import com.google.common.truth.Truth.assertThat |
| import java.util.Collections |
| import java.util.concurrent.ExecutionException |
| import org.junit.After |
| import org.junit.Assert |
| import org.junit.Before |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.robolectric.RobolectricTestRunner |
| import org.robolectric.Shadows.shadowOf |
| import org.robolectric.annotation.Config |
| import org.robolectric.annotation.internal.DoNotInstrument |
| |
| private val TEST_CAMERA_SELECTOR = CameraSelector.DEFAULT_BACK_CAMERA |
| |
| /** |
| * Unit tests for [Preview]. |
| */ |
| @RunWith(RobolectricTestRunner::class) |
| @DoNotInstrument |
| @Config( |
| minSdk = Build.VERSION_CODES.LOLLIPOP |
| ) |
| class PreviewTest { |
| |
| private var cameraUseCaseAdapter: CameraUseCaseAdapter? = null |
| |
| private lateinit var appSurface: Surface |
| private lateinit var appSurfaceTexture: SurfaceTexture |
| private lateinit var backCamera: FakeCamera |
| private lateinit var frontCamera: FakeCamera |
| private lateinit var cameraXConfig: CameraXConfig |
| private lateinit var context: Context |
| private lateinit var previewToDetach: Preview |
| private lateinit var processor: FakeSurfaceProcessorInternal |
| private lateinit var effect: CameraEffect |
| |
| private val handlersToRelease = mutableListOf<Handler>() |
| |
| @Before |
| @Throws(ExecutionException::class, InterruptedException::class) |
| fun setUp() { |
| appSurfaceTexture = SurfaceTexture(0) |
| appSurface = Surface(appSurfaceTexture) |
| backCamera = FakeCamera("back") |
| frontCamera = FakeCamera("front", null, FakeCameraInfoInternal(0, LENS_FACING_FRONT)) |
| |
| val cameraFactoryProvider = |
| CameraFactory.Provider { _: Context?, _: CameraThreadConfig?, _: CameraSelector? -> |
| val cameraFactory = FakeCameraFactory() |
| cameraFactory.insertDefaultBackCamera( |
| backCamera.cameraInfoInternal.cameraId |
| ) { backCamera } |
| cameraFactory.insertDefaultFrontCamera( |
| frontCamera.cameraInfoInternal.cameraId |
| ) { frontCamera } |
| cameraFactory |
| } |
| cameraXConfig = CameraXConfig.Builder.fromConfig( |
| FakeAppConfig.create() |
| ).setCameraFactoryProvider(cameraFactoryProvider).build() |
| context = ApplicationProvider.getApplicationContext<Context>() |
| CameraXUtil.initialize(context, cameraXConfig).get() |
| processor = FakeSurfaceProcessorInternal(mainThreadExecutor()) |
| effect = FakeSurfaceEffect(processor) |
| } |
| |
| @After |
| @Throws(ExecutionException::class, InterruptedException::class) |
| fun tearDown() { |
| appSurfaceTexture.release() |
| appSurface.release() |
| with(cameraUseCaseAdapter) { |
| this?.removeUseCases(useCases) |
| } |
| cameraUseCaseAdapter = null |
| if (::previewToDetach.isInitialized) { |
| previewToDetach.onUnbind() |
| } |
| processor.release() |
| CameraXUtil.shutdown().get() |
| for (handler in handlersToRelease) { |
| handler.looper.quitSafely() |
| } |
| } |
| |
| @Test |
| fun verifySupportedEffects() { |
| val preview = Preview.Builder().build() |
| assertThat(preview.isEffectTargetsSupported(PREVIEW)).isTrue() |
| assertThat(preview.isEffectTargetsSupported(PREVIEW or VIDEO_CAPTURE)).isTrue() |
| assertThat( |
| preview.isEffectTargetsSupported(PREVIEW or VIDEO_CAPTURE or IMAGE_CAPTURE) |
| ).isTrue() |
| assertThat(preview.isEffectTargetsSupported(VIDEO_CAPTURE)).isFalse() |
| assertThat(preview.isEffectTargetsSupported(IMAGE_CAPTURE)).isFalse() |
| assertThat(preview.isEffectTargetsSupported(IMAGE_CAPTURE or VIDEO_CAPTURE)).isFalse() |
| } |
| |
| @Test |
| fun viewPortSet_cropRectIsBasedOnViewPort() { |
| val transformationInfo = bindToLifecycleAndGetTransformationInfo( |
| ViewPort.Builder(Rational(1, 1), Surface.ROTATION_0).build() |
| ) |
| // The expected value is based on fitting the 1:1 view port into a rect with the size of |
| // FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE. |
| val expectedPadding = ( |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.width - |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.height |
| ) / 2 |
| assertThat(transformationInfo.cropRect).isEqualTo( |
| Rect( |
| expectedPadding, |
| 0, |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.width - expectedPadding, |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.height |
| ) |
| ) |
| } |
| |
| @Test |
| fun viewPortNotSet_cropRectIsFullSurface() { |
| val transformationInfo = bindToLifecycleAndGetTransformationInfo( |
| null |
| ) |
| |
| assertThat(transformationInfo.cropRect).isEqualTo( |
| Rect( |
| 0, |
| 0, |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.width, |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.height |
| ) |
| ) |
| } |
| |
| @Test |
| fun surfaceRequestSize_isSurfaceSize() { |
| assertThat(bindToLifecycleAndGetSurfaceRequest().resolution).isEqualTo( |
| Size( |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.width, |
| FakeCameraDeviceSurfaceManager.MAX_OUTPUT_SIZE.height |
| ) |
| ) |
| } |
| |
| @Test |
| fun defaultMirrorModeIsOnFrontOnly() { |
| val preview = Preview.Builder().build() |
| assertThat(preview.mirrorModeInternal).isEqualTo(MIRROR_MODE_ON_FRONT_ONLY) |
| } |
| |
| @Test(expected = UnsupportedOperationException::class) |
| fun setMirrorMode_throwException() { |
| Preview.Builder().setMirrorMode(MIRROR_MODE_ON_FRONT_ONLY) |
| } |
| |
| @Test |
| fun setTargetRotation_rotationIsChanged() { |
| // Arrange. |
| val preview = Preview.Builder().setTargetRotation(Surface.ROTATION_0).build() |
| |
| // Act: set target rotation. |
| preview.targetRotation = Surface.ROTATION_180 |
| |
| // Assert: target rotation is updated. |
| assertThat(preview.targetRotation).isEqualTo(Surface.ROTATION_180) |
| } |
| |
| @Test |
| fun attachUseCase_transformationInfoUpdates() { |
| // Arrange: attach Preview without a SurfaceProvider. |
| // Build and bind use case. |
| val sessionOptionUnpacker = |
| { _: Size, _: UseCaseConfig<*>?, _: SessionConfig.Builder? -> } |
| val preview = Preview.Builder() |
| .setTargetRotation(Surface.ROTATION_0) |
| .setSessionOptionUnpacker(sessionOptionUnpacker) |
| .build() |
| cameraUseCaseAdapter = CameraUtil.createCameraUseCaseAdapter( |
| ApplicationProvider.getApplicationContext(), TEST_CAMERA_SELECTOR |
| ) |
| val rational1 = Rational(1, 1) |
| cameraUseCaseAdapter!!.setViewPort(ViewPort.Builder(rational1, Surface.ROTATION_0).build()) |
| cameraUseCaseAdapter!!.addUseCases(Collections.singleton<UseCase>(preview)) |
| |
| // Set SurfaceProvider |
| var receivedTransformationInfo: TransformationInfo? = null |
| preview.setSurfaceProvider { request -> |
| request.setTransformationInfoListener( |
| CameraXExecutors.directExecutor(), |
| SurfaceRequest.TransformationInfoListener { |
| receivedTransformationInfo = it |
| } |
| ) |
| } |
| shadowOf(getMainLooper()).idle() |
| assertThat(receivedTransformationInfo!!.cropRect.getAspectRatio()).isEqualTo(rational1) |
| |
| // Act: bind another use case with a different viewport. |
| val fakeUseCase = FakeUseCase() |
| val rational2 = Rational(2, 1) |
| cameraUseCaseAdapter!!.setViewPort(ViewPort.Builder(rational2, Surface.ROTATION_0).build()) |
| cameraUseCaseAdapter!!.addUseCases(listOf(preview, fakeUseCase)) |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: received viewport's aspect ratio is the latest one. |
| assertThat(receivedTransformationInfo!!.cropRect.getAspectRatio()).isEqualTo(rational2) |
| } |
| |
| private fun Rect.getAspectRatio(): Rational { |
| return Rational(width(), height()) |
| } |
| |
| @Test |
| fun createSurfaceRequestWithProcessor_noCameraTransform() { |
| // Arrange: attach Preview without a SurfaceProvider. |
| var transformationInfo: TransformationInfo? = null |
| |
| // Act: create pipeline in Preview and provide Surface. |
| val preview = createPreview(effect) |
| preview.mCurrentSurfaceRequest!!.setTransformationInfoListener(mainThreadExecutor()) { |
| transformationInfo = it |
| } |
| shadowOf(getMainLooper()).idle() |
| |
| // Get pending SurfaceRequest created by pipeline. |
| assertThat(transformationInfo!!.hasCameraTransform()).isFalse() |
| } |
| |
| @Test |
| fun createSurfaceRequestWithoutProcessor_hasCameraTransform() { |
| // Arrange: attach Preview without a SurfaceProvider. |
| var transformationInfo: TransformationInfo? = null |
| |
| // Act: create pipeline in Preview and provide Surface. |
| val preview = createPreview() |
| preview.mCurrentSurfaceRequest!!.setTransformationInfoListener(mainThreadExecutor()) { |
| transformationInfo = it |
| } |
| shadowOf(getMainLooper()).idle() |
| |
| // Get pending SurfaceRequest created by pipeline. |
| assertThat(transformationInfo!!.hasCameraTransform()).isTrue() |
| } |
| |
| @Test |
| fun backCameraWithProcessor_notMirrored() { |
| // Act: create pipeline |
| val preview = createPreview(effect, backCamera) |
| // Assert |
| assertThat(preview.cameraEdge.mirroring).isFalse() |
| } |
| |
| @Test |
| fun frontCameraWithProcessor_mirrored() { |
| // Act: create pipeline |
| val preview = createPreview(effect, frontCamera) |
| // Assert |
| assertThat(preview.cameraEdge.mirroring).isTrue() |
| } |
| |
| @Test |
| fun setTargetRotationWithProcessor_rotationChangesOnSurfaceEdge() { |
| // Act: create pipeline |
| val preview = createPreview(effect) |
| // Act: update target rotation |
| preview.targetRotation = Surface.ROTATION_0 |
| shadowOf(getMainLooper()).idle() |
| // Assert that the rotation of the SettableFuture is updated based on ROTATION_0. |
| assertThat(preview.cameraEdge.rotationDegrees).isEqualTo(0) |
| |
| // Act: update target rotation again. |
| preview.targetRotation = Surface.ROTATION_180 |
| shadowOf(getMainLooper()).idle() |
| // Assert: the rotation of the SettableFuture is updated based on ROTATION_90. |
| assertThat(preview.cameraEdge.rotationDegrees).isEqualTo(180) |
| } |
| |
| @Test |
| fun setTargetRotationWithProcessorOnBackground_rotationChangesOnSurfaceEdge() { |
| // Act: create pipeline |
| val preview = createPreview(effect) |
| // Act: update target rotation |
| preview.targetRotation = Surface.ROTATION_0 |
| shadowOf(getMainLooper()).idle() |
| // Assert that the rotation of the SettableFuture is updated based on ROTATION_0. |
| assertThat(preview.cameraEdge.rotationDegrees).isEqualTo(0) |
| |
| // Act: update target rotation again. |
| val backgroundHandler = createBackgroundHandler() |
| backgroundHandler.post { preview.targetRotation = Surface.ROTATION_180 } |
| shadowOf(backgroundHandler.looper).idle() |
| shadowOf(getMainLooper()).idle() |
| // Assert: the rotation of the SettableFuture is updated based on ROTATION_90. |
| assertThat(preview.cameraEdge.rotationDegrees).isEqualTo(180) |
| } |
| |
| @Test |
| fun invalidateAppSurfaceRequestWithProcessing_cameraNotReset() { |
| // Arrange: create Preview with processing. |
| val surfaceRequest = createPreview(effect).mCurrentSurfaceRequest |
| // Act: invalidate. |
| surfaceRequest!!.invalidate() |
| shadowOf(getMainLooper()).idle() |
| // Assert: preview is not reset. |
| assertThat(backCamera.useCaseResetHistory).isEmpty() |
| } |
| |
| @Test |
| fun invalidateNodeSurfaceRequest_cameraReset() { |
| // Arrange: create Preview with processing. |
| val preview = createPreview(effect) |
| // Act: invalidate. |
| processor.surfaceRequest!!.invalidate() |
| shadowOf(getMainLooper()).idle() |
| // Assert: preview is reset. |
| assertThat(backCamera.useCaseResetHistory).containsExactly(preview) |
| } |
| |
| @Test |
| fun invalidateAppSurfaceRequestWithoutProcessing_cameraReset() { |
| // Arrange: create Preview without processing. |
| val preview = createPreview() |
| val surfaceRequest = preview.mCurrentSurfaceRequest |
| // Act: invalidate |
| surfaceRequest!!.invalidate() |
| shadowOf(getMainLooper()).idle() |
| // Assert: preview is reset. |
| assertThat(backCamera.useCaseResetHistory).containsExactly(preview) |
| } |
| |
| @Test |
| fun invalidateWhenDetached_deferrableSurfaceClosed() { |
| // Arrange: create Preview with processing then detach. |
| val preview = createPreview(effect) |
| val surfaceRequest = processor.surfaceRequest!! |
| preview.unbindFromCamera(backCamera) |
| // Act: invalidate. |
| surfaceRequest.invalidate() |
| shadowOf(getMainLooper()).idle() |
| // Assert: preview is not reset and the DeferrableSurface is closed. |
| assertThat(backCamera.useCaseResetHistory).isEmpty() |
| assertThat(surfaceRequest.deferrableSurface.isClosed).isTrue() |
| } |
| |
| @Test |
| fun hasCameraTransform_rotationDegreesNotFlipped() { |
| // Act: create preview with hasCameraTransform == true |
| val preview = createPreview( |
| effect, |
| frontCamera, |
| targetRotation = Surface.ROTATION_90 |
| ) |
| assertThat(preview.cameraEdge.hasCameraTransform()).isTrue() |
| // Assert: rotationDegrees is not flipped. |
| assertThat(preview.cameraEdge.rotationDegrees).isEqualTo(90) |
| } |
| |
| @Test |
| fun noCameraTransform_rotationDegreesFlipped() { |
| // Act: create preview with hasCameraTransform == false |
| frontCamera.hasTransform = false |
| val preview = createPreview( |
| effect, |
| frontCamera, |
| targetRotation = Surface.ROTATION_90 |
| ) |
| // Assert: rotationDegrees is flipped |
| assertThat(preview.cameraEdge.rotationDegrees).isEqualTo(270) |
| } |
| |
| @Test |
| fun setNoCameraTransform_propagatesToCameraEdge() { |
| // Act: create preview with hasCameraTransform == false |
| frontCamera.hasTransform = false |
| val preview = createPreview( |
| effect, |
| frontCamera, |
| targetRotation = Surface.ROTATION_90 |
| ) |
| // Assert |
| assertThat(preview.cameraEdge.hasCameraTransform()).isFalse() |
| assertThat(preview.cameraEdge.mirroring).isFalse() |
| } |
| |
| @Test |
| fun frontCameraWithoutCameraTransform_noMirroring() { |
| // Act: create preview with hasCameraTransform == false |
| frontCamera.hasTransform = false |
| val preview = createPreview( |
| effect, |
| frontCamera, |
| targetRotation = Surface.ROTATION_90 |
| ) |
| // Assert |
| assertThat(preview.cameraEdge.mirroring).isFalse() |
| } |
| |
| @Test |
| fun cameraEdgeHasTransformByDefault() { |
| assertThat(createPreview(effect).cameraEdge.hasCameraTransform()).isTrue() |
| } |
| |
| @Test |
| fun bindAndUnbindPreview_surfacesPropagated() { |
| // Act: create pipeline in Preview and provide Surface. |
| val preview = createPreview(effect) |
| val surfaceRequest = preview.mCurrentSurfaceRequest!! |
| var appSurfaceReadyToRelease = false |
| surfaceRequest.provideSurface(appSurface, mainThreadExecutor()) { |
| appSurfaceReadyToRelease = true |
| } |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: surfaceOutput received. |
| assertThat(processor.surfaceOutputs).hasSize(1) |
| assertThat(processor.isReleased).isFalse() |
| assertThat(processor.isOutputSurfaceRequestedToClose[PREVIEW]).isNull() |
| assertThat(processor.isInputSurfaceReleased).isFalse() |
| assertThat(appSurfaceReadyToRelease).isFalse() |
| // processor surface is provided to camera. |
| assertThat(preview.sessionConfig.surfaces[0].surface.get()) |
| .isEqualTo(processor.inputSurface) |
| |
| // Act: unbind Preview. |
| preview.onUnbind() |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: processor and processor surface is released. |
| assertThat(processor.isReleased).isTrue() |
| assertThat(processor.isOutputSurfaceRequestedToClose[PREVIEW]).isTrue() |
| assertThat(processor.isInputSurfaceReleased).isTrue() |
| assertThat(appSurfaceReadyToRelease).isTrue() |
| } |
| |
| @Test |
| fun invokedErrorListener_recreatePipeline() { |
| // Arrange: create pipeline and get a reference of the SessionConfig. |
| val preview = createPreview(effect) |
| val originalSessionConfig = preview.sessionConfig |
| |
| // Act: invoke the error listener. |
| preview.sessionConfig.errorListeners[0].onError( |
| preview.sessionConfig, SessionConfig.SessionError.SESSION_ERROR_UNKNOWN |
| ) |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: the SessionConfig changed. |
| assertThat(preview.sessionConfig).isNotEqualTo(originalSessionConfig) |
| } |
| |
| @Test |
| fun setTargetRotation_transformationInfoUpdated() { |
| // Arrange: set up preview and verify target rotation in TransformationInfo. |
| val sessionOptionUnpacker = |
| { _: Size, _: UseCaseConfig<*>?, _: SessionConfig.Builder? -> } |
| val preview = Preview.Builder() |
| .setTargetRotation(Surface.ROTATION_0) |
| .setSessionOptionUnpacker(sessionOptionUnpacker) |
| .build() |
| cameraUseCaseAdapter = CameraUtil.createCameraUseCaseAdapter( |
| ApplicationProvider.getApplicationContext(), TEST_CAMERA_SELECTOR |
| ) |
| cameraUseCaseAdapter!!.addUseCases(Collections.singleton<UseCase>(preview)) |
| var receivedTransformationInfo: TransformationInfo? = null |
| preview.setSurfaceProvider { request -> |
| request.setTransformationInfoListener( |
| CameraXExecutors.directExecutor(), |
| SurfaceRequest.TransformationInfoListener { |
| receivedTransformationInfo = it |
| } |
| ) |
| } |
| shadowOf(getMainLooper()).idle() |
| assertThat(receivedTransformationInfo!!.targetRotation).isEqualTo(Surface.ROTATION_0) |
| |
| // Act: set target rotation to a different value. |
| preview.targetRotation = Surface.ROTATION_180 |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: target rotation changed. |
| assertThat(receivedTransformationInfo!!.targetRotation).isEqualTo(Surface.ROTATION_180) |
| } |
| |
| @Test |
| fun setSurfaceProviderAfterAttachment_receivesSurfaceProviderCallbacks() { |
| // Arrange: attach Preview without a SurfaceProvider. |
| val sessionOptionUnpacker = |
| { _: Size, _: UseCaseConfig<*>?, _: SessionConfig.Builder? -> } |
| val preview = Preview.Builder() |
| .setTargetRotation(Surface.ROTATION_0) |
| .setSessionOptionUnpacker(sessionOptionUnpacker) |
| .build() |
| val cameraUseCaseAdapter = CameraUtil.createCameraUseCaseAdapter( |
| ApplicationProvider |
| .getApplicationContext(), |
| TEST_CAMERA_SELECTOR |
| ) |
| cameraUseCaseAdapter.addUseCases(Collections.singleton<UseCase>(preview)) |
| |
| // Get pending SurfaceRequest created by pipeline. |
| val pendingSurfaceRequest = preview.mCurrentSurfaceRequest |
| var receivedSurfaceRequest: SurfaceRequest? = null |
| var receivedTransformationInfo: TransformationInfo? = null |
| |
| // Act: set a SurfaceProvider after attachment. |
| preview.setSurfaceProvider { request -> |
| request.setTransformationInfoListener( |
| CameraXExecutors.directExecutor(), |
| SurfaceRequest.TransformationInfoListener { |
| receivedTransformationInfo = it |
| } |
| ) |
| receivedSurfaceRequest = request |
| } |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: received SurfaceRequest is not the pending SurfaceRequest. |
| assertThat(receivedSurfaceRequest).isNotSameInstanceAs(pendingSurfaceRequest) |
| assertThat(receivedTransformationInfo).isNotNull() |
| |
| // Act: set a different SurfaceProvider. |
| preview.setSurfaceProvider { request -> |
| request.setTransformationInfoListener( |
| CameraXExecutors.directExecutor(), |
| SurfaceRequest.TransformationInfoListener { |
| receivedTransformationInfo = it |
| } |
| ) |
| receivedSurfaceRequest = request |
| } |
| shadowOf(getMainLooper()).idle() |
| |
| // Assert: received a different SurfaceRequest. |
| assertThat(receivedSurfaceRequest).isNotSameInstanceAs(pendingSurfaceRequest) |
| } |
| |
| @Test |
| fun setSurfaceProviderAfterDetach_receivesSurfaceRequestAfterAttach() { |
| // Arrange: attach Preview without a SurfaceProvider. |
| val sessionOptionUnpacker = |
| { _: Size, _: UseCaseConfig<*>?, _: SessionConfig.Builder? -> } |
| val preview = Preview.Builder() |
| .setTargetRotation(Surface.ROTATION_0) |
| .setSessionOptionUnpacker(sessionOptionUnpacker) |
| .build() |
| cameraUseCaseAdapter = CameraUtil.createCameraUseCaseAdapter( |
| ApplicationProvider |
| .getApplicationContext(), |
| TEST_CAMERA_SELECTOR |
| ) |
| // Attach |
| cameraUseCaseAdapter!!.addUseCases(Collections.singleton<UseCase>(preview)) |
| // Detach |
| cameraUseCaseAdapter!!.removeUseCases(Collections.singleton<UseCase>(preview)) |
| |
| // Act: set a SurfaceProvider after detaching |
| var receivedSurfaceRequest = false |
| preview.setSurfaceProvider { receivedSurfaceRequest = true } |
| shadowOf(getMainLooper()).idle() |
| |
| val receivedWhileDetached = receivedSurfaceRequest |
| |
| // Attach |
| cameraUseCaseAdapter!!.addUseCases(Collections.singleton<UseCase>(preview)) |
| shadowOf(getMainLooper()).idle() |
| |
| val receivedAfterAttach = receivedSurfaceRequest |
| |
| // Assert: received a SurfaceRequest. |
| assertThat(receivedWhileDetached).isFalse() |
| assertThat(receivedAfterAttach).isTrue() |
| } |
| |
| @Test |
| fun throwException_whenSetBothTargetResolutionAndAspectRatio() { |
| Assert.assertThrows(IllegalArgumentException::class.java) { |
| Preview.Builder().setTargetResolution(SizeUtil.RESOLUTION_VGA) |
| .setTargetAspectRatio(AspectRatio.RATIO_4_3).build() |
| } |
| } |
| |
| @Test |
| fun throwException_whenSetTargetResolutionWithResolutionSelector() { |
| Assert.assertThrows(IllegalArgumentException::class.java) { |
| Preview.Builder().setTargetResolution(SizeUtil.RESOLUTION_VGA) |
| .setResolutionSelector(ResolutionSelector.Builder().build()) |
| .build() |
| } |
| } |
| |
| @Test |
| fun throwException_whenSetTargetAspectRatioWithResolutionSelector() { |
| Assert.assertThrows(IllegalArgumentException::class.java) { |
| Preview.Builder().setTargetAspectRatio(AspectRatio.RATIO_4_3) |
| .setResolutionSelector(ResolutionSelector.Builder().build()) |
| .build() |
| } |
| } |
| |
| private fun bindToLifecycleAndGetSurfaceRequest(): SurfaceRequest { |
| return bindToLifecycleAndGetResult(null).first |
| } |
| |
| private fun bindToLifecycleAndGetTransformationInfo(viewPort: ViewPort?): TransformationInfo { |
| return bindToLifecycleAndGetResult(viewPort).second |
| } |
| |
| private fun bindToLifecycleAndGetResult(viewPort: ViewPort?): Pair<SurfaceRequest, |
| TransformationInfo> { |
| // Arrange. |
| val sessionOptionUnpacker = |
| { _: Size, _: UseCaseConfig<*>?, _: SessionConfig.Builder? -> } |
| val preview = Preview.Builder() |
| .setTargetRotation(Surface.ROTATION_0) |
| .setSessionOptionUnpacker(sessionOptionUnpacker) |
| .build() |
| var surfaceRequest: SurfaceRequest? = null |
| var transformationInfo: TransformationInfo? = null |
| preview.setSurfaceProvider { request -> |
| request.setTransformationInfoListener( |
| CameraXExecutors.directExecutor(), |
| SurfaceRequest.TransformationInfoListener { |
| transformationInfo = it |
| } |
| ) |
| surfaceRequest = request |
| } |
| |
| // Act. |
| cameraUseCaseAdapter = CameraUtil.createCameraUseCaseAdapter( |
| ApplicationProvider.getApplicationContext(), TEST_CAMERA_SELECTOR |
| ) |
| cameraUseCaseAdapter!!.setViewPort(viewPort) |
| cameraUseCaseAdapter!!.addUseCases(Collections.singleton<UseCase>(preview)) |
| shadowOf(getMainLooper()).idle() |
| return Pair(surfaceRequest!!, transformationInfo!!) |
| } |
| |
| private fun createPreview( |
| effect: CameraEffect? = null, |
| camera: FakeCamera = backCamera, |
| targetRotation: Int = Surface.ROTATION_0 |
| ): Preview { |
| previewToDetach = Preview.Builder() |
| .setTargetRotation(targetRotation) |
| .build() |
| previewToDetach.effect = effect |
| previewToDetach.setSurfaceProvider(CameraXExecutors.directExecutor()) {} |
| val previewConfig = PreviewConfig( |
| cameraXConfig.getUseCaseConfigFactoryProvider(null)!!.newInstance(context).getConfig( |
| UseCaseConfigFactory.CaptureType.PREVIEW, |
| ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY |
| )!! as OptionsBundle |
| ) |
| previewToDetach.bindToCamera(camera, null, previewConfig) |
| |
| val streamSpec = StreamSpec.builder(Size(640, 480)).build() |
| previewToDetach.onSuggestedStreamSpecUpdated(streamSpec) |
| return previewToDetach |
| } |
| |
| private fun createBackgroundHandler(): Handler { |
| val handler = Handler(HandlerThread("PreviewTest").run { |
| start() |
| looper |
| }) |
| handlersToRelease.add(handler) |
| return handler |
| } |
| } |
