chartlib/src/test/java/com/android/tools/chartlib/CircularArrayListTest.java

/*
 * Copyright (C) 2014 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.tools.chartlib;

import junit.framework.TestCase;

public class CircularArrayListTest extends TestCase {

    private CircularArrayList<Integer> mList;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        mList = new CircularArrayList<Integer>(3);
        mList.add(0);
        mList.add(1);
    }

    public void testGetAndAdd() throws Exception {
        assertEquals(0, mList.get(0).intValue());
        assertEquals(1, mList.get(1).intValue());

        try {
            mList.get(-1);
            fail("IndexOutOfBoundsException expected");
        } catch (IndexOutOfBoundsException e) {
            // Expected.
        }

        try {
            mList.get(2);
            fail("IndexOutOfBoundsException expected");
        } catch (IndexOutOfBoundsException e) {
            // Expected.
        }

        mList.add(2);
        mList.add(3);

        assertEquals(1, mList.get(0).intValue());
        assertEquals(2, mList.get(1).intValue());
        assertEquals(3, mList.get(2).intValue());
    }

    public void testSize() throws Exception {
        assertEquals(2, mList.size());
        mList.add(2);
        assertEquals(3, mList.size());

        mList.add(3);
        assertEquals(3, mList.size());
    }

    public void testClear() throws Exception {
        assertEquals(2, mList.size());

        mList.clear();

        assertEquals(0, mList.size());
    }
}