runner/src/androidTest/java/android/support/test/JUnit4HogTest.java

package android.support.test;
/*
 * 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.
 */


import android.test.suitebuilder.annotation.SmallTest;

import org.junit.Before;
import org.junit.Test;

/**
 * A set of JUnit4 tests that allocates substantial memory into a member variable.
 * <p/>
 * Intended to ensure test objects references are not retained by runner, and can get garbage
 * collected.
 */
@SmallTest
public class JUnit4HogTest {

    @SuppressWarnings("unused")
    private byte[] mByteBuffer;

    @Before
    public void setUp() {
        mByteBuffer = new byte[20 * 1024 * 1024];
    }

    // have 10 sample tests - means 200MB total mem if mByteBuffer not freed

    @Test
    public void test1() {
    }

    @Test
    public void test2() {
    }

    @Test
    public void test3() {
    }

    @Test
    public void test4() {
    }

    @Test
    public void test5() {
    }

    @Test
    public void test6() {
    }

    @Test
    public void test7() {
    }

    @Test
    public void test8() {
    }

    @Test
    public void test9() {
    }
}