Add FingerprintEnrollProgressViewModelTest

Bug: 259664912
Test: m RunSettingsRoboTests
      ROBOTEST_FILTER=FingerprintEnrollProgressViewModelTest
Change-Id: I10605a9f179c20c3a1ba23373485855a0cbb7099

tests/robotests/src/com/android/settings/biometrics2/OWNERS

@@ -0,0 +1 @@
+include /src/com/android/settings/biometrics/OWNERS

tests/robotests/src/com/android/settings/biometrics2/ui/viewmodel/FingerprintEnrollProgressViewModelTest.java

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+/*
+ * Copyright (C) 2023 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 com.android.settings.biometrics2.ui.viewmodel;
+
+import static android.hardware.fingerprint.FingerprintManager.ENROLL_ENROLL;
+import static android.hardware.fingerprint.FingerprintManager.ENROLL_FIND_SENSOR;
+import static android.hardware.fingerprint.FingerprintManager.EnrollReason;
+import static android.hardware.fingerprint.FingerprintManager.EnrollmentCallback;
+
+import static com.android.settings.biometrics2.ui.model.EnrollmentProgress.INITIAL_STEPS;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.only;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.app.Application;
+import android.content.res.Resources;
+import android.os.CancellationSignal;
+
+import com.android.settings.R;
+import com.android.settings.biometrics.fingerprint.FingerprintUpdater;
+import com.android.settings.biometrics2.ui.model.EnrollmentProgress;
+import com.android.settings.testutils.InstantTaskExecutorRule;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.RobolectricTestRunner;
+
+@RunWith(RobolectricTestRunner.class)
+public class FingerprintEnrollProgressViewModelTest {
+
+    @Rule public final MockitoRule mockito = MockitoJUnit.rule();
+    @Rule public final InstantTaskExecutorRule mTaskExecutorRule = new InstantTaskExecutorRule();
+
+    @Mock private Application mApplication;
+    @Mock private Resources mResources;
+    @Mock private FingerprintUpdater mFingerprintUpdater;
+
+    private FingerprintEnrollProgressViewModel mViewModel;
+
+    @Before
+    public void setUp() {
+        when(mApplication.getResources()).thenReturn(mResources);
+        when(mResources.getBoolean(R.bool.enrollment_message_display_controller_flag))
+                .thenReturn(false);
+        mViewModel = new FingerprintEnrollProgressViewModel(mApplication, mFingerprintUpdater);
+    }
+
+    @Test
+    public void testStartEnrollment() {
+        @EnrollReason final int enrollReason = ENROLL_FIND_SENSOR;
+        final int userId = 334;
+        final byte[] token = new byte[] { 1, 2, 3 };
+        mViewModel.setToken(token);
+        mViewModel.setUserId(userId);
+
+        // Start enrollment
+        final boolean ret = mViewModel.startEnrollment(enrollReason);
+
+        assertThat(ret).isTrue();
+        verify(mFingerprintUpdater, only()).enroll(eq(token), any(CancellationSignal.class),
+                eq(userId), any(EnrollmentCallback.class), eq(enrollReason));
+    }
+
+    @Test
+    public void testStartEnrollmentFailBecauseOfNoToken() {
+        // Start enrollment
+        final boolean ret = mViewModel.startEnrollment(ENROLL_FIND_SENSOR);
+
+        assertThat(ret).isFalse();
+        verify(mFingerprintUpdater, never()).enroll(any(byte[].class),
+                any(CancellationSignal.class), anyInt(), any(EnrollmentCallback.class), anyInt());
+    }
+
+    @Test
+    public void testCancelEnrollment() {
+        @EnrollReason final int enrollReason = ENROLL_ENROLL;
+        final int userId = 334;
+        final byte[] token = new byte[] { 1, 2, 3 };
+        mViewModel.setToken(token);
+        mViewModel.setUserId(userId);
+
+        final TestWrapper<CancellationSignal> signalWrapper = new TestWrapper<>();
+        doAnswer(invocation -> {
+            signalWrapper.mValue = invocation.getArgument(1);
+            return null;
+        }).when(mFingerprintUpdater).enroll(any(byte[].class), any(CancellationSignal.class),
+                eq(userId), any(EnrollmentCallback.class), anyInt());
+
+        // Start enrollment
+        final boolean ret = mViewModel.startEnrollment(enrollReason);
+        assertThat(ret).isTrue();
+        assertThat(signalWrapper.mValue).isNotNull();
+
+        // Cancel enrollment
+        mViewModel.cancelEnrollment();
+
+        assertThat(signalWrapper.mValue.isCanceled()).isTrue();
+    }
+
+    @Test
+    public void testProgressUpdate() {
+        @EnrollReason final int enrollReason = ENROLL_ENROLL;
+        final int userId = 334;
+        final byte[] token = new byte[] { 1, 2, 3 };
+        mViewModel.setToken(token);
+        mViewModel.setUserId(userId);
+
+        final TestWrapper<EnrollmentCallback> callbackWrapper = new TestWrapper<>();
+        doAnswer(invocation -> {
+            callbackWrapper.mValue = invocation.getArgument(3);
+            return null;
+        }).when(mFingerprintUpdater).enroll(any(byte[].class), any(CancellationSignal.class),
+                eq(userId), any(EnrollmentCallback.class), anyInt());
+
+        // Start enrollment
+        final boolean ret = mViewModel.startEnrollment(enrollReason);
+        assertThat(ret).isTrue();
+        assertThat(callbackWrapper.mValue).isNotNull();
+
+        // Update first progress
+        callbackWrapper.mValue.onEnrollmentProgress(25);
+        EnrollmentProgress progress = mViewModel.getProgressLiveData().getValue();
+        assertThat(progress).isNotNull();
+        assertThat(progress.getSteps()).isEqualTo(25);
+        // TODO(b/260957933) verify getRemaining() when it is really used
+        //assertThat(progress.getRemaining()).isEqualTo(25);
+
+        // Update second progress
+        callbackWrapper.mValue.onEnrollmentProgress(20);
+        progress = mViewModel.getProgressLiveData().getValue();
+        assertThat(progress).isNotNull();
+        assertThat(progress.getSteps()).isEqualTo(25);
+        // TODO(b/260957933) verify getRemaining() when it is really used
+        //assertThat(progress.getRemaining()).isEqualTo(20);
+
+        // Clear progress
+        mViewModel.clearProgressLiveData();
+        progress = mViewModel.getProgressLiveData().getValue();
+        assertThat(progress).isNotNull();
+        assertThat(progress.getSteps()).isEqualTo(INITIAL_STEPS);
+        // TODO(b/260957933) verify getRemaining() when it is really used
+        //assertThat(progress.getRemaining()).isEqualTo(INITIAL_REMAINING);
+    }
+
+    // TODO(b/260957933): FingerprintEnrollProgressViewModel::getErrorLiveData() and
+    // FingerprintEnrollProgressViewModel::getHelpLiveData() doesn't built into apk because no one
+    // uses it. We shall test it when new FingerprintEnrollEnrolling has used these 2 methods.
+
+    private static class TestWrapper<T> {
+        T mValue;
+    }
+}

tests/robotests/src/com/android/settings/testutils/InstantTaskExecutorRule.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2023 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 com.android.settings.testutils;
+
+import androidx.arch.core.executor.ArchTaskExecutor;
+import androidx.arch.core.executor.TaskExecutor;
+
+import org.junit.rules.TestWatcher;
+import org.junit.runner.Description;
+
+/**
+ * A JUnit Test Rule that swaps the background executor used by the Architecture Components with a
+ * different one which executes each task synchronously.
+ *
+ * We can't refer it in prebuilt androidX library.
+ * Copied it from androidx/arch/core/executor/testing/InstantTaskExecutorRule.java
+ */
+public class InstantTaskExecutorRule extends TestWatcher {
+    @Override
+    protected void starting(Description description) {
+        super.starting(description);
+        ArchTaskExecutor.getInstance().setDelegate(new TaskExecutor() {
+            @Override
+            public void executeOnDiskIO(Runnable runnable) {
+                runnable.run();
+            }
+
+            @Override
+            public void postToMainThread(Runnable runnable) {
+                runnable.run();
+            }
+
+            @Override
+            public boolean isMainThread() {
+                return true;
+            }
+        });
+    }
+
+    @Override
+    protected void finished(Description description) {
+        super.finished(description);
+        ArchTaskExecutor.getInstance().setDelegate(null);
+    }
+}