Merge "Fix document stack."

    }

    }

    public void pushDocument(DocumentInfo info) {

    public void pushDocument(DocumentInfo info) {

        stack.add(info);

        stack.push(info);

        mStackTouched = true;

        mStackTouched = true;

    }

    }

/*

 * 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 com.android.documentsui;

import android.test.AndroidTestCase;

import android.test.suitebuilder.annotation.SmallTest;

import com.android.documentsui.model.DocumentInfo;

@SmallTest

public class StateTest extends AndroidTestCase {

    public void testPushDocument() {

        final State state = new State();

        final DocumentInfo infoFirst = new DocumentInfo();

        infoFirst.displayName = "firstDirectory";

        final DocumentInfo infoSecond = new DocumentInfo();

        infoSecond.displayName = "secondDirectory";

        assertFalse(state.hasLocationChanged());

        state.pushDocument(infoFirst);

        state.pushDocument(infoSecond);

        assertTrue(state.hasLocationChanged());

        assertEquals("secondDirectory", state.stack.getFirst().displayName);

        state.popDocument();

        assertEquals("firstDirectory", state.stack.getFirst().displayName);

    }

}