Simplifies serviceSupportsAccessibilityButton by checking service info.

This should also address a bug where this method used to only check
class name instead of package+class.

Bug: 264307062
Test: atest ToggleAccessibilityServicePreferenceFragmentTest
Change-Id: Ia5f602c6fbc1d23c88dc3d5076c701445b692887

tests/robotests/src/com/android/settings/accessibility/ToggleAccessibilityServicePreferenceFragmentTest.java

@@ -22,13 +22,17 @@ import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.when;
 
+import android.accessibilityservice.AccessibilityServiceInfo;
+import android.annotation.NonNull;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
 import android.service.quicksettings.TileService;
+import android.view.accessibility.AccessibilityManager;
 
 import androidx.preference.PreferenceManager;
 import androidx.preference.PreferenceScreen;
@@ -45,13 +49,20 @@ import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.Shadows;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowAccessibilityManager;
 import org.robolectric.shadows.ShadowPackageManager;
 
+import java.util.List;
+
 /** Tests for {@link ToggleAccessibilityServicePreferenceFragment} */
 @RunWith(RobolectricTestRunner.class)
 public class ToggleAccessibilityServicePreferenceFragmentTest {
 
     private static final String PLACEHOLDER_PACKAGE_NAME = "com.placeholder.example";
+    private static final String PLACEHOLDER_PACKAGE_NAME2 = "com.placeholder.example2";
+    private static final String PLACEHOLDER_SERVICE_CLASS_NAME = "a11yservice1";
+    private static final String PLACEHOLDER_SERVICE_CLASS_NAME2 = "a11yservice2";
     private static final String PLACEHOLDER_TILE_CLASS_NAME =
             PLACEHOLDER_PACKAGE_NAME + "tile.placeholder";
     private static final String PLACEHOLDER_TILE_CLASS_NAME2 =
@@ -67,6 +78,7 @@ public class ToggleAccessibilityServicePreferenceFragmentTest {
     private PreferenceScreen mScreen;
     private Context mContext = ApplicationProvider.getApplicationContext();
 
+    private ShadowAccessibilityManager mShadowAccessibilityManager;
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     private PreferenceManager mPreferenceManager;
 
@@ -81,6 +93,7 @@ public class ToggleAccessibilityServicePreferenceFragmentTest {
         mScreen = spy(new PreferenceScreen(mContext, /* attrs= */ null));
         when(mScreen.getPreferenceManager()).thenReturn(mPreferenceManager);
         doReturn(mScreen).when(mFragment).getPreferenceScreen();
+        mShadowAccessibilityManager = Shadow.extract(AccessibilityManager.getInstance(mContext));
     }
 
     @Test
@@ -149,6 +162,57 @@ public class ToggleAccessibilityServicePreferenceFragmentTest {
                         R.string.accessibility_service_auto_added_qs_tooltip_content, tileName));
     }
 
+    @Test
+    public void getAccessibilityServiceInfo() throws Throwable {
+        final AccessibilityServiceInfo info1 = getFakeAccessibilityServiceInfo(
+                PLACEHOLDER_PACKAGE_NAME,
+                PLACEHOLDER_SERVICE_CLASS_NAME);
+        final AccessibilityServiceInfo info2 = getFakeAccessibilityServiceInfo(
+                PLACEHOLDER_PACKAGE_NAME,
+                PLACEHOLDER_SERVICE_CLASS_NAME2);
+        final AccessibilityServiceInfo info3 = getFakeAccessibilityServiceInfo(
+                PLACEHOLDER_PACKAGE_NAME2,
+                PLACEHOLDER_SERVICE_CLASS_NAME);
+        final AccessibilityServiceInfo info4 = getFakeAccessibilityServiceInfo(
+                PLACEHOLDER_PACKAGE_NAME2,
+                PLACEHOLDER_SERVICE_CLASS_NAME2);
+        mShadowAccessibilityManager.setInstalledAccessibilityServiceList(
+                List.of(info1, info2, info3, info4));
+
+        mFragment.mComponentName = info3.getComponentName();
+
+        assertThat(mFragment.getAccessibilityServiceInfo()).isEqualTo(info3);
+    }
+
+    @Test
+    public void getAccessibilityServiceInfo_notFound() throws Throwable {
+        mShadowAccessibilityManager.setInstalledAccessibilityServiceList(List.of());
+
+        mFragment.mComponentName = getFakeAccessibilityServiceInfo(PLACEHOLDER_PACKAGE_NAME,
+                PLACEHOLDER_SERVICE_CLASS_NAME).getComponentName();
+
+        assertThat(mFragment.getAccessibilityServiceInfo()).isNull();
+    }
+
+    @Test
+    public void serviceSupportsAccessibilityButton() throws Throwable {
+        final AccessibilityServiceInfo infoWithA11yButton = getFakeAccessibilityServiceInfo(
+                PLACEHOLDER_PACKAGE_NAME,
+                PLACEHOLDER_SERVICE_CLASS_NAME);
+        infoWithA11yButton.flags = AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON;
+        final AccessibilityServiceInfo infoWithoutA11yButton = getFakeAccessibilityServiceInfo(
+                PLACEHOLDER_PACKAGE_NAME2,
+                PLACEHOLDER_SERVICE_CLASS_NAME2);
+        infoWithoutA11yButton.flags = 0;
+        mShadowAccessibilityManager.setInstalledAccessibilityServiceList(
+                List.of(infoWithA11yButton, infoWithoutA11yButton));
+
+        mFragment.mComponentName = infoWithA11yButton.getComponentName();
+        assertThat(mFragment.serviceSupportsAccessibilityButton()).isTrue();
+        mFragment.mComponentName = infoWithoutA11yButton.getComponentName();
+        assertThat(mFragment.serviceSupportsAccessibilityButton()).isFalse();
+    }
+
     private void setupTileService(String packageName, String name, String tileName) {
         final Intent tileProbe = new Intent(TileService.ACTION_QS_TILE);
         final ResolveInfo info = new ResolveInfo();
@@ -172,6 +236,23 @@ public class ToggleAccessibilityServicePreferenceFragmentTest {
         }
     }
 
+    @NonNull
+    private AccessibilityServiceInfo getFakeAccessibilityServiceInfo(String packageName,
+            String className) throws Throwable {
+        final ApplicationInfo applicationInfo = new ApplicationInfo();
+        final ServiceInfo serviceInfo = new ServiceInfo();
+        applicationInfo.packageName = packageName;
+        serviceInfo.packageName = packageName;
+        serviceInfo.name = className;
+        serviceInfo.applicationInfo = applicationInfo;
+        final ResolveInfo resolveInfo = new ResolveInfo();
+        resolveInfo.serviceInfo = serviceInfo;
+        final AccessibilityServiceInfo info = new AccessibilityServiceInfo(resolveInfo, mContext);
+        ComponentName componentName = ComponentName.createRelative(packageName, className);
+        info.setComponentName(componentName);
+        return info;
+    }
+
     private static class TestToggleAccessibilityServicePreferenceFragment
             extends ToggleAccessibilityServicePreferenceFragment {