core/tests/coretests/src/android/widget/focus/DescendantFocusabilityTest.java

/*
 * Copyright (C) 2008 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.widget.focus;

import android.test.ActivityInstrumentationTestCase;
import android.test.TouchUtils;
import android.view.ViewGroup;

import androidx.test.annotation.UiThreadTest;
import androidx.test.filters.LargeTest;
import androidx.test.filters.MediumTest;

public class DescendantFocusabilityTest extends ActivityInstrumentationTestCase<DescendantFocusability> {

    private DescendantFocusability a;

    public DescendantFocusabilityTest() {
        super("com.android.frameworks.coretests", DescendantFocusability.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        a = getActivity();

    }

    @MediumTest
    public void testPreconditions() {
        assertEquals(ViewGroup.FOCUS_BEFORE_DESCENDANTS,
            a.beforeDescendants.getDescendantFocusability());
        assertEquals(ViewGroup.FOCUS_AFTER_DESCENDANTS,
            a.afterDescendants.getDescendantFocusability());
        assertEquals(ViewGroup.FOCUS_BLOCK_DESCENDANTS,
            a.blocksDescendants.getDescendantFocusability());

        assertTrue(a.beforeDescendantsChild.isFocusable());
        assertTrue(a.afterDescendantsChild.isFocusable());
        assertTrue(a.blocksDescendantsChild.isFocusable());
    }

    @UiThreadTest
    @MediumTest
    public void testBeforeDescendants() {
        a.beforeDescendants.setFocusable(true);

        assertTrue(a.beforeDescendants.requestFocus());
        assertTrue(a.beforeDescendants.isFocused());

        a.beforeDescendants.setFocusable(false);
        a.beforeDescendants.requestFocus();
        assertTrue(a.beforeDescendantsChild.isFocused());
    }

    @UiThreadTest
    @MediumTest
    public void testAfterDescendants() {
        a.afterDescendants.setFocusable(true);

        assertTrue(a.afterDescendants.requestFocus());
        assertTrue(a.afterDescendantsChild.isFocused());

        a.afterDescendants.setFocusable(false);
        assertTrue(a.afterDescendants.requestFocus());
        assertTrue(a.afterDescendantsChild.isFocused());
    }

    @UiThreadTest
    @MediumTest
    public void testBlocksDescendants() {
        a.blocksDescendants.setFocusable(true);
        assertTrue(a.blocksDescendants.requestFocus());
        assertTrue(a.blocksDescendants.isFocused());
        assertFalse(a.blocksDescendantsChild.isFocused());

        a.blocksDescendants.setFocusable(false);
        assertFalse(a.blocksDescendants.requestFocus());
        assertFalse(a.blocksDescendants.isFocused());
        assertFalse(a.blocksDescendantsChild.isFocused());
    }

    @UiThreadTest
    @MediumTest
    public void testChildOfDescendantBlockerRequestFocusFails() {
        assertFalse(a.blocksDescendantsChild.requestFocus());
    }

    @LargeTest
    public void testBeforeDescendantsEnterTouchMode() {
        a.runOnUiThread(new Runnable() {
            public void run() {
                a.beforeDescendants.setFocusableInTouchMode(true);
                a.beforeDescendantsChild.requestFocus();
            }
        });
        getInstrumentation().waitForIdleSync();
        assertTrue(a.beforeDescendantsChild.isFocused());
        assertFalse(a.beforeDescendantsChild.isInTouchMode());

        TouchUtils.clickView(this, a.beforeDescendantsChild);
        assertTrue(a.beforeDescendantsChild.isInTouchMode());
        assertFalse(a.beforeDescendants.isFocused());        
    }

    @LargeTest
    public void testAfterDescendantsEnterTouchMode() {
        a.runOnUiThread(new Runnable() {
            public void run() {
                a.afterDescendants.setFocusableInTouchMode(true);
                a.afterDescendantsChild.requestFocus();
            }
        });
        getInstrumentation().waitForIdleSync();
        assertTrue(a.afterDescendantsChild.isFocused());
        assertFalse(a.afterDescendantsChild.isInTouchMode());

        TouchUtils.clickView(this, a.afterDescendantsChild);
        assertTrue(a.afterDescendantsChild.isInTouchMode());
        assertTrue(a.afterDescendants.isFocused());
    }


}