[SettingsProvider] GenerationRegistry test for Global settings

BUG: 228619157
Test: atest com.android.providers.settings.GenerationRegistryTest
Change-Id: I5e050b4834d75ab9112efdcd25621ab88e16eb5c

2 files changed, 23 insertions, 0 deletions

diff --git a/packages/SettingsProvider/test/AndroidTest.xml b/packages/SettingsProvider/test/AndroidTest.xml
index 9d2352670ddd..0bf53ccf81a6 100644
--- a/packages/SettingsProvider/test/AndroidTest.xml
+++ b/packages/SettingsProvider/test/AndroidTest.xml
@@ -14,6 +14,12 @@
      limitations under the License.
 -->
 <configuration description="Run Settings Provider Tests.">
+    <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
+        <option name="set-global-setting" key="verifier_verify_adb_installs" value="0" />
+        <option name="restore-settings" value="true" />
+        <option name="force-skip-system-props" value="true" />
+    </target_preparer>
+
     <target_preparer class="com.android.tradefed.targetprep.TestAppInstallSetup">
         <option name="test-file-name" value="SettingsProviderTest.apk" />
     </target_preparer>
diff --git a/packages/SettingsProvider/test/src/com/android/providers/settings/GenerationRegistryTest.java b/packages/SettingsProvider/test/src/com/android/providers/settings/GenerationRegistryTest.java
index 6ec8146baee0..586d6f73baad 100644
--- a/packages/SettingsProvider/test/src/com/android/providers/settings/GenerationRegistryTest.java
+++ b/packages/SettingsProvider/test/src/com/android/providers/settings/GenerationRegistryTest.java
@@ -170,6 +170,23 @@ public class GenerationRegistryTest {
         checkBundle(b, 1, 2, false);
     }
 
+    @Test
+    public void testGlobalSettings() throws IOException {
+        final GenerationRegistry generationRegistry = new GenerationRegistry(new Object());
+        final int globalKey = SettingsState.makeKey(SettingsState.SETTINGS_TYPE_GLOBAL, 0);
+        final String testGlobalSetting = "test_global_setting";
+        final Bundle b = new Bundle();
+        generationRegistry.addGenerationData(b, globalKey, testGlobalSetting);
+        checkBundle(b, 0, 1, false);
+        final MemoryIntArray array = getArray(b);
+        final int globalKey2 = SettingsState.makeKey(SettingsState.SETTINGS_TYPE_GLOBAL, 10);
+        b.clear();
+        generationRegistry.addGenerationData(b, globalKey2, testGlobalSetting);
+        checkBundle(b, 0, 1, false);
+        final MemoryIntArray array2 = getArray(b);
+        // Check that user10 and user0 use the same array to store global settings' generations
+        assertThat(array).isEqualTo(array2);
+    }
 
     private void checkBundle(Bundle b, int expectedIndex, int expectedGeneration, boolean isNull)
             throws IOException {