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Commit cfd02742 authored by Fan Zhang's avatar Fan Zhang
Browse files

Add helper method to override flag 

Bug: 36222960
Test: atest FrameworksCoreFeatureFlagTests
Change-Id: I45edc5171e66e4ac8e84cfc58a9fdf9bae2b136a
parent d96b97b8

core/java/android/util/FeatureFlagUtils.java

+7 −0
Original line number Diff line number Diff line
@@ -49,6 +49,13 @@ public class FeatureFlagUtils { 
        return Boolean.parseBoolean(value);

    }



    /**

     * Override feature flag to new state.

     */

    public static void setEnabled(String feature, boolean enabled) {

        SystemProperties.set(FFLAG_OVERRIDE_PREFIX + feature, enabled ? "true" : "false");

    }



    /**

     * Returns all feature flags in their raw form.

     */

core/tests/featureflagtests/src/android/util/FeatureFlagUtilsTest.java

+13 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 


package android.util;



import static junit.framework.Assert.assertEquals;

import static junit.framework.Assert.assertFalse;

import static junit.framework.Assert.assertTrue;
@@ -64,6 +65,18 @@ public class FeatureFlagUtilsTest { 
        assertTrue(FeatureFlagUtils.isEnabled(TEST_FEATURE_NAME));

    }



    @Test

    public void testSetEnabled_shouldSetOverrideFlag() {

        assertFalse(FeatureFlagUtils.isEnabled(TEST_FEATURE_NAME));



        FeatureFlagUtils.setEnabled(TEST_FEATURE_NAME, true);



        assertEquals(SystemProperties.get(FeatureFlagUtils.FFLAG_PREFIX + TEST_FEATURE_NAME, null),

                "");

        assertTrue(Boolean.parseBoolean(SystemProperties.get(

                FeatureFlagUtils.FFLAG_OVERRIDE_PREFIX + TEST_FEATURE_NAME, "")));

    }



    @Test

    public void testGetFlag_notSet_shouldReturnFalse() {

        assertFalse(FeatureFlagUtils.isEnabled(TEST_FEATURE_NAME));