diff --git a/core/tests/overlaytests/host/Android.bp b/core/tests/overlaytests/host/Android.bp
index a2fcef56b7802..2b38cca2db36e 100644
--- a/core/tests/overlaytests/host/Android.bp
+++ b/core/tests/overlaytests/host/Android.bp
@@ -16,7 +16,7 @@ java_test_host {
     name: "OverlayHostTests",
     srcs: ["src/**/*.java"],
     libs: ["tradefed"],
-    test_suites: ["general-tests"],
+    test_suites: ["device-tests"],
     target_required: [
         "OverlayHostTests_NonPlatformSignatureOverlay",
         "OverlayHostTests_PlatformSignatureStaticOverlay",
diff --git a/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java b/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java
index eec7be22c78bc..d898d222b8de4 100644
--- a/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java
+++ b/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java
@@ -78,14 +78,9 @@ public class InstallOverlayTests extends BaseHostJUnit4Test {
     }
 
     @Test
-    public void failToInstallPlatformSignedStaticOverlay() throws Exception {
-        try {
-            installPackage("OverlayHostTests_PlatformSignatureStaticOverlay.apk");
-            fail("installed a static overlay");
-        } catch (Exception e) {
-            // Expected.
-        }
-        assertFalse(overlayManagerContainsPackage(SIG_OVERLAY_PACKAGE_NAME));
+    public void installedIsStaticOverlayIsMutable() throws Exception {
+        installPackage("OverlayHostTests_PlatformSignatureStaticOverlay.apk");
+        assertTrue(isOverlayMutable(SIG_OVERLAY_PACKAGE_NAME));
     }
 
     @Test
@@ -229,6 +224,10 @@ public class InstallOverlayTests extends BaseHostJUnit4Test {
         return shell("cmd overlay list").contains(pkg);
     }
 
+    private boolean isOverlayMutable(String pkg) throws Exception {
+        return shell("cmd overlay dump ismutable " + pkg).contains("true");
+    }
+
     private String shell(final String cmd) throws Exception {
         return getDevice().executeShellCommand(cmd);
     }
diff --git a/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk b/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk
index cc7704b0ce981..f3c0abd8293f1 100644
--- a/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk
+++ b/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk
@@ -20,7 +20,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_NonPlatformSignatureOverlay
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_bad
 include $(BUILD_PACKAGE)
 
@@ -28,7 +28,8 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_PlatformSignatureStaticOverlay
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
+LOCAL_CERTIFICATE := platform
 LOCAL_MANIFEST_FILE := static/AndroidManifest.xml
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_static
 include $(BUILD_PACKAGE)
@@ -37,7 +38,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_PlatformSignatureOverlay
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_CERTIFICATE := platform
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v1
 LOCAL_AAPT_FLAGS += --version-code 1 --version-name v1
diff --git a/core/tests/overlaytests/host/test-apps/UpdateOverlay/Android.mk b/core/tests/overlaytests/host/test-apps/UpdateOverlay/Android.mk
index f8607f44bda62..878f05d576621 100644
--- a/core/tests/overlaytests/host/test-apps/UpdateOverlay/Android.mk
+++ b/core/tests/overlaytests/host/test-apps/UpdateOverlay/Android.mk
@@ -19,7 +19,7 @@ LOCAL_MODULE_TAGS := tests
 LOCAL_SRC_FILES := $(call all-java-files-under,src)
 LOCAL_PACKAGE_NAME := OverlayHostTests_UpdateOverlay
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_STATIC_JAVA_LIBRARIES := androidx.test.rules
 LOCAL_USE_AAPT2 := true
 LOCAL_AAPT_FLAGS := --no-resource-removal
@@ -31,7 +31,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_FrameworkOverlayV1
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_CERTIFICATE := platform
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v1
 LOCAL_AAPT_FLAGS += --version-code 1 --version-name v1
@@ -43,7 +43,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_FrameworkOverlayV2
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_CERTIFICATE := platform
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v2
 LOCAL_AAPT_FLAGS += --version-code 2 --version-name v2
@@ -57,7 +57,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_AppOverlayV1
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v1
 LOCAL_AAPT_FLAGS += --version-code 1 --version-name v1
 LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/app/v1/res
@@ -68,7 +68,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := tests
 LOCAL_PACKAGE_NAME := OverlayHostTests_AppOverlayV2
 LOCAL_SDK_VERSION := current
-LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v2
 LOCAL_AAPT_FLAGS += --version-code 2 --version-name v2
 LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/app/v2/res
diff --git a/services/tests/servicestests/src/com/android/server/om/OverlayManagerServiceImplTestsBase.java b/services/tests/servicestests/src/com/android/server/om/OverlayManagerServiceImplTestsBase.java
index 820e61cb0a08c..9eda718ed922b 100644
--- a/services/tests/servicestests/src/com/android/server/om/OverlayManagerServiceImplTestsBase.java
+++ b/services/tests/servicestests/src/com/android/server/om/OverlayManagerServiceImplTestsBase.java
@@ -377,8 +377,7 @@ class OverlayManagerServiceImplTestsBase {
                 return false;
             }
             final String key = createKey(overlayPackage.packageName, userId);
-            mIdmapFiles.add(key);
-            return true;
+            return mIdmapFiles.add(key);
         }
 
         @Override