Android example source code file (ListOfShortShortTallShortShortTest.java)

This example Android source code file (ListOfShortShortTallShortShortTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

activityinstrumentationtestcase, android, exception, largetest, listofshortshorttallshortshorttest, listutil, listview, mediumtest, override, test, ui, util, utilities, view

The ListOfShortShortTallShortShortTest.java Android example source code

/*
 * Copyright (C) 2007 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.listview.arrowscroll;

import android.test.ActivityInstrumentationTestCase;
import android.test.suitebuilder.annotation.LargeTest;
import android.test.suitebuilder.annotation.MediumTest;
import android.view.KeyEvent;
import android.widget.ListView;
import android.widget.listview.ListOfShortShortTallShortShort;
import android.util.ListUtil;

public class ListOfShortShortTallShortShortTest extends ActivityInstrumentationTestCase<ListOfShortShortTallShortShort> {
    private ListView mListView;
    private ListUtil mListUtil;

    public ListOfShortShortTallShortShortTest() {
        super("com.android.frameworks.coretests", ListOfShortShortTallShortShort.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mListView = getActivity().getListView();
        mListUtil = new ListUtil(mListView, getInstrumentation());
    }

    @MediumTest
    public void testPreconditions() {
        assertEquals("list item count", 5, mListView.getCount());
        assertEquals("list visible child count", 3, mListView.getChildCount());
        int firstTwoHeight = mListView.getChildAt(0).getHeight() + mListView.getChildAt(1).getHeight();
        assertTrue("first two items should fit within fading edge",
                firstTwoHeight <= mListView.getVerticalFadingEdgeLength());
        assertTrue("first two items should fit within list max scroll",
                firstTwoHeight <= mListView.getMaxScrollAmount());
    }

    @MediumTest
    public void testFadeTopTwoItemsOut() {
        // put 2nd item selected
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);

        // one more to get two items scrolled off
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);

        assertEquals("selected item position", 2, mListView.getSelectedItemPosition());
        assertTrue("selected item top should be above list top",
                mListView.getSelectedView().getTop() < mListUtil.getListTop());
        assertTrue("selected item bottom should be below list bottom",
                mListView.getSelectedView().getBottom() > mListUtil.getListBottom());
        assertEquals("should only be 1 child of list (2 should have been scrolled off and removed",
                1, mListView.getChildCount());
    }

    @LargeTest
    public void testFadeInTwoBottomItems() {
        // put 2nd item selected
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);

        // one more to get two items scrolled off
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
        assertEquals("number of list children", 1, mListView.getChildCount());

        // last down brings bottom two items into view
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
        assertEquals("should have scrolled two extra views onto screen",
                3, mListView.getChildCount());
        assertEquals("new view position", 3, mListView.getChildAt(1).getId());
        assertEquals("new view position", 4, mListView.getChildAt(2).getId());

        assertTrue("bottom most view shouldn't be above list bottom",
                mListView.getChildAt(2).getBottom() >= mListUtil.getListBottom());
    }

    @LargeTest
    public void testFadeOutBottomTwoItems() throws Exception {
        mListUtil.arrowScrollToSelectedPosition(4);

        // go up to tall item
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);

        // one more time to scroll off bottom two items
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);


        assertEquals("selected item position", 2, mListView.getSelectedItemPosition());
        assertTrue("selected item top should be at or above list top",
                mListView.getSelectedView().getTop() <= mListUtil.getListTop());
        assertTrue("selected item bottom should be below list bottom",
                mListView.getSelectedView().getBottom() > mListUtil.getListBottom());
        assertEquals("should only be 1 child of list (2 should have been scrolled off and removed",
                1, mListView.getChildCount());        
    }

    @LargeTest
    public void testFadeInTopTwoItems() throws Exception {
        mListUtil.arrowScrollToSelectedPosition(4);

        // put 2nd item selected
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);

        // one more to get two items scrolled off
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
        assertEquals("number of list children", 1, mListView.getChildCount());

        // last down brings top two items into view
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
        assertEquals("should have scrolled two extra views onto screen",
                3, mListView.getChildCount());
        assertEquals("new view position", 0, mListView.getChildAt(0).getId());
        assertEquals("new view position", 1, mListView.getChildAt(1).getId());

        assertTrue("top most view shouldn't be above list top",
                mListView.getChildAt(0).getTop() <= mListUtil.getListTop());
    }

    
}