diff --git a/tests/Internal/Android.bp b/tests/Internal/Android.bp
index 827ff4f..ad98e47 100644
--- a/tests/Internal/Android.bp
+++ b/tests/Internal/Android.bp
@@ -24,6 +24,7 @@
         "flickerlib-parsers",
         "perfetto_trace_java_protos",
         "flickerlib-trace_processor_shell",
+        "ravenwood-junit",
     ],
     java_resource_dirs: ["res"],
     certificate: "platform",
@@ -39,6 +40,7 @@
         "platform-test-annotations",
     ],
     srcs: [
+        "src/com/android/internal/graphics/ColorUtilsTest.java",
         "src/com/android/internal/util/ParcellingTests.java",
     ],
     auto_gen_config: true,
diff --git a/tests/Internal/src/com/android/internal/graphics/ColorUtilsTest.java b/tests/Internal/src/com/android/internal/graphics/ColorUtilsTest.java
index d0bb8e3..38a22f2 100644
--- a/tests/Internal/src/com/android/internal/graphics/ColorUtilsTest.java
+++ b/tests/Internal/src/com/android/internal/graphics/ColorUtilsTest.java
@@ -19,14 +19,19 @@
 import static org.junit.Assert.assertTrue;
 
 import android.graphics.Color;
+import android.platform.test.ravenwood.RavenwoodRule;
 
 import androidx.test.filters.SmallTest;
 
+import org.junit.Rule;
 import org.junit.Test;
 
 @SmallTest
 public class ColorUtilsTest {
 
+    @Rule
+    public final RavenwoodRule mRavenwood = new RavenwoodRule();
+
     @Test
     public void calculateMinimumBackgroundAlpha_satisfiestContrast() {
 
diff --git a/tests/Internal/src/com/android/internal/util/ParcellingTests.java b/tests/Internal/src/com/android/internal/util/ParcellingTests.java
index 65a3436..fb63422 100644
--- a/tests/Internal/src/com/android/internal/util/ParcellingTests.java
+++ b/tests/Internal/src/com/android/internal/util/ParcellingTests.java
@@ -18,6 +18,7 @@
 
 import android.os.Parcel;
 import android.platform.test.annotations.Presubmit;
+import android.platform.test.ravenwood.RavenwoodRule;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
@@ -26,6 +27,7 @@
 
 import com.android.internal.util.Parcelling.BuiltIn.ForInstant;
 
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
@@ -38,6 +40,9 @@
 @RunWith(JUnit4.class)
 public class ParcellingTests {
 
+    @Rule
+    public final RavenwoodRule mRavenwood = new RavenwoodRule();
+
     private Parcel mParcel = Parcel.obtain();
 
     @Test