diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
index b3f8f9114021..3fe6cca85271 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
@@ -49,9 +49,11 @@ import android.view.View;
 import androidx.test.filters.SmallTest;
 
 import com.android.internal.colorextraction.ColorExtractor.GradientColors;
+import com.android.keyguard.BouncerPanelExpansionCalculator;
 import com.android.keyguard.KeyguardUpdateMonitor;
 import com.android.systemui.DejankUtils;
 import com.android.systemui.SysuiTestCase;
+import com.android.systemui.animation.ShadeInterpolation;
 import com.android.systemui.dock.DockManager;
 import com.android.systemui.keyguard.KeyguardUnlockAnimationController;
 import com.android.systemui.scrim.ScrimView;
@@ -1235,39 +1237,114 @@ public class ScrimControllerTest extends SysuiTestCase {
     }
 
     @Test
-    public void testNotificationTransparency_followsPanelExpansionInShadeLockedState() {
+    public void expansionNotificationAlpha_shadeLocked_bouncerActive_usesBouncerInterpolator() {
         when(mStatusBarKeyguardViewManager.bouncerIsInTransit()).thenReturn(true);
 
         mScrimController.transitionTo(ScrimState.SHADE_LOCKED);
 
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 0f, /* expansion */ 0.8f);
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 0f, /* expansion */ 0.2f);
+        float expansion = 0.8f;
+        float expectedAlpha =
+                BouncerPanelExpansionCalculator.getBackScrimScaledExpansion(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, expectedAlpha, expansion);
+
+        expansion = 0.2f;
+        expectedAlpha = BouncerPanelExpansionCalculator.getBackScrimScaledExpansion(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, expectedAlpha, expansion);
     }
 
     @Test
-    public void testNotificationTransparency_unnocclusion() {
+    public void expansionNotificationAlpha_shadeLocked_bouncerNotActive_usesShadeInterpolator() {
+        when(mStatusBarKeyguardViewManager.bouncerIsInTransit()).thenReturn(false);
+
+        mScrimController.transitionTo(ScrimState.SHADE_LOCKED);
+
+        float expansion = 0.8f;
+        float expectedAlpha = ShadeInterpolation.getNotificationScrimAlpha(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, expectedAlpha, expansion);
+
+        expansion = 0.2f;
+        expectedAlpha = ShadeInterpolation.getNotificationScrimAlpha(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, expectedAlpha, expansion);
+    }
+
+    @Test
+    public void notificationAlpha_unnocclusionAnimating_bouncerActive_usesKeyguardNotifAlpha() {
         when(mStatusBarKeyguardViewManager.bouncerIsInTransit()).thenReturn(true);
 
         mScrimController.transitionTo(ScrimState.KEYGUARD);
         mScrimController.setUnocclusionAnimationRunning(true);
 
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 0f, /* expansion */ 0f);
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 0f, /* expansion */ 1.0f);
+        assertAlphaAfterExpansion(
+                mNotificationsScrim, ScrimState.KEYGUARD.getNotifAlpha(), /* expansion */ 0f);
+        assertAlphaAfterExpansion(
+                mNotificationsScrim, ScrimState.KEYGUARD.getNotifAlpha(), /* expansion */ 0.4f);
+        assertAlphaAfterExpansion(
+                mNotificationsScrim, ScrimState.KEYGUARD.getNotifAlpha(), /* expansion */ 1.0f);
 
         // Verify normal behavior after
         mScrimController.setUnocclusionAnimationRunning(false);
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 1f, /* expansion */ 0.4f);
+        float expansion = 0.4f;
+        float alpha = 1 - BouncerPanelExpansionCalculator.getBackScrimScaledExpansion(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
     }
 
     @Test
-    public void testNotificationTransparency_inKeyguardState() {
+    public void notificationAlpha_unnocclusionAnimating_bouncerNotActive_usesKeyguardNotifAlpha() {
+        when(mStatusBarKeyguardViewManager.bouncerIsInTransit()).thenReturn(false);
+
+        mScrimController.transitionTo(ScrimState.KEYGUARD);
+        mScrimController.setUnocclusionAnimationRunning(true);
+
+        assertAlphaAfterExpansion(
+                mNotificationsScrim, ScrimState.KEYGUARD.getNotifAlpha(), /* expansion */ 0f);
+        assertAlphaAfterExpansion(
+                mNotificationsScrim, ScrimState.KEYGUARD.getNotifAlpha(), /* expansion */ 0.4f);
+        assertAlphaAfterExpansion(
+                mNotificationsScrim, ScrimState.KEYGUARD.getNotifAlpha(), /* expansion */ 1.0f);
+
+        // Verify normal behavior after
+        mScrimController.setUnocclusionAnimationRunning(false);
+        float expansion = 0.4f;
+        float alpha = 1 - ShadeInterpolation.getNotificationScrimAlpha(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
+    }
+
+    @Test
+    public void notificationAlpha_inKeyguardState_bouncerActive_usesInvertedBouncerInterpolator() {
         when(mStatusBarKeyguardViewManager.bouncerIsInTransit()).thenReturn(true);
 
         mScrimController.transitionTo(ScrimState.KEYGUARD);
 
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 1f, /* expansion */ 0.8f);
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 1f, /* expansion */ 0.4f);
-        assertAlphaAfterExpansion(mNotificationsScrim, /* alpha */ 1f, /* expansion */ 0.2f);
+        float expansion = 0.8f;
+        float alpha = 1 - BouncerPanelExpansionCalculator.getBackScrimScaledExpansion(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
+
+        expansion = 0.4f;
+        alpha = 1 - BouncerPanelExpansionCalculator.getBackScrimScaledExpansion(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
+
+        expansion = 0.2f;
+        alpha = 1 - BouncerPanelExpansionCalculator.getBackScrimScaledExpansion(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
+    }
+
+    @Test
+    public void notificationAlpha_inKeyguardState_bouncerNotActive_usesInvertedShadeInterpolator() {
+        when(mStatusBarKeyguardViewManager.bouncerIsInTransit()).thenReturn(false);
+
+        mScrimController.transitionTo(ScrimState.KEYGUARD);
+
+        float expansion = 0.8f;
+        float alpha = 1 - ShadeInterpolation.getNotificationScrimAlpha(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
+
+        expansion = 0.4f;
+        alpha = 1 - ShadeInterpolation.getNotificationScrimAlpha(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
+
+        expansion = 0.2f;
+        alpha = 1 - ShadeInterpolation.getNotificationScrimAlpha(expansion);
+        assertAlphaAfterExpansion(mNotificationsScrim, alpha, expansion);
     }
 
     @Test
@@ -1387,7 +1464,7 @@ public class ScrimControllerTest extends SysuiTestCase {
         mScrimController.setRawPanelExpansionFraction(expansion);
         finishAnimationsImmediately();
         // alpha is not changing linearly thus 0.2 of leeway when asserting
-        assertEquals(expectedAlpha, mNotificationsScrim.getViewAlpha(), 0.2);
+        assertEquals(expectedAlpha, scrim.getViewAlpha(), 0.2);
     }
 
     private void assertScrimTinted(Map<ScrimView, Boolean> scrimToTint) {