hostsidetests/services/activitymanager/src/android/server/cts/ActivityManagerConfigChangeTests.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.server.cts;

public class ActivityManagerConfigChangeTests extends ActivityManagerTestBase {

    private static final String TEST_ACTIVITY_NAME = "TestActivity";
    private static final String NO_RELAUNCH_ACTIVITY_NAME = "NoRelaunchActivity";

    public void testRotation90Relaunch() throws Exception{
        // Should relaunch on every rotation and receive no onConfigurationChanged()
        testRotation(TEST_ACTIVITY_NAME, 1, 1, 0);
    }

    public void testRotation90NoRelaunch() throws Exception {
        // Should receive onConfigurationChanged() on every rotation and no relaunch
        testRotation(NO_RELAUNCH_ACTIVITY_NAME, 1, 0, 1);
    }

    public void testRotation180Relaunch() throws Exception {
        // Should receive nothing
        testRotation(TEST_ACTIVITY_NAME, 2, 0, 0);
    }

    public void testRotation180NoRelaunch() throws Exception {
        // Should receive nothing
        testRotation(NO_RELAUNCH_ACTIVITY_NAME, 2, 0, 0);
    }

    public void testChangeFontScaleRelaunch() throws Exception {
        // Should relaunch and receive no onConfigurationChanged()
        testChangeFontScale(TEST_ACTIVITY_NAME, true);
    }

    public void testChangeFontScaleNoRelaunch() throws Exception {
        // Should receive onConfigurationChanged() and no relaunch
        testChangeFontScale(NO_RELAUNCH_ACTIVITY_NAME, false);
    }

    private void testRotation(
            String activityName, int rotationStep, int numRelaunch, int numConfigChange)
                    throws Exception {
        executeShellCommand(getAmStartCmd(activityName));

        final String[] waitForActivitiesVisible = new String[] {activityName};
        mAmWmState.computeState(mDevice, waitForActivitiesVisible);
        mAmWmState.assertContainsStack(
                "Must contain fullscreen stack.", FULLSCREEN_WORKSPACE_STACK_ID);

        setDeviceRotation(4 - rotationStep);
        mAmWmState.computeState(mDevice, waitForActivitiesVisible);

        for (int rotation = 0; rotation < 4; rotation += rotationStep) {
            clearLogcat();
            setDeviceRotation(rotation);
            mAmWmState.computeState(mDevice, waitForActivitiesVisible);
            assertRelaunchOrConfigChanged(activityName, numRelaunch, numConfigChange);
        }
    }

    private void testChangeFontScale(
            String activityName, boolean relaunch) throws Exception {
        executeShellCommand(getAmStartCmd(activityName));
        final String[] waitForActivitiesVisible = new String[] {activityName};
        mAmWmState.computeState(mDevice, waitForActivitiesVisible);
        mAmWmState.assertContainsStack(
                "Must contain fullscreen stack.", FULLSCREEN_WORKSPACE_STACK_ID);

        setFontScale(1.0f);
        mAmWmState.computeState(mDevice, waitForActivitiesVisible);

        for (float fontScale = 0.85f; fontScale <= 1.3f; fontScale += 0.15f) {
            clearLogcat();
            setFontScale(fontScale);
            mAmWmState.computeState(mDevice, waitForActivitiesVisible);
            assertRelaunchOrConfigChanged(activityName, relaunch ? 1 : 0, relaunch ? 0 : 1);
        }
    }
}