Merge "Remove subtext when enrollment stage changes" into tm-qpr-dev

src/com/android/settings/biometrics/fingerprint/FingerprintEnrollEnrolling.java

@@ -676,7 +676,10 @@ public class FingerprintEnrollEnrolling extends BiometricsEnrollEnrolling {
         }
     }
 
-    private void configureEnrollmentStage(@RawRes int lottie) {
+    @VisibleForTesting void configureEnrollmentStage(@RawRes int lottie) {
+        if (!mCanAssumeSfps) {
+            setDescriptionText("");
+        }
         LottieCompositionFactory.fromRawRes(this, lottie)
                 .addListener((c) -> {
                     mIllustrationLottie.setComposition(c);

tests/robotests/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollEnrollingTest.java

@@ -283,6 +283,28 @@ public class FingerprintEnrollEnrollingTest {
         assertThat(getLayout().getDescriptionTextView().getVisibility()).isEqualTo(View.VISIBLE);
     }
 
+    @Test
+    public void testUdfpsConfigureEnrollmentStage_descriptionText() {
+        initializeActivityFor(TYPE_UDFPS_OPTICAL);
+
+        assertThat(getLayout().getDescriptionText()).isNotEqualTo("");
+
+        mActivity.configureEnrollmentStage(0 /* lottie */);
+
+        assertThat(getLayout().getDescriptionText()).isEqualTo("");
+    }
+
+    @Test
+    public void testSfpsConfigureEnrollmentStage_descriptionText() {
+        initializeActivityFor(TYPE_POWER_BUTTON);
+
+        assertThat(getLayout().getDescriptionTextView().getVisibility()).isEqualTo(View.GONE);
+
+        mActivity.configureEnrollmentStage(0 /* lottie */);
+
+        assertThat(getLayout().getDescriptionTextView().getVisibility()).isEqualTo(View.GONE);
+    }
+
     private GlifLayout getLayout() {
         return (GlifLayout) mActivity.findViewById(R.id.setup_wizard_layout);
     }