Android example source code file (ActivityTestCase.java)

This example Android source code file (ActivityTestCase.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

activity, activitytestcase, android, app, application, class, could, error, field, illegalaccessexception, instrumentationtestcase, reflection, testcase

The ActivityTestCase.java Android example source code

/*
 * 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.test;

import android.app.Activity;

import java.lang.reflect.Field;

/**
 * This is common code used to support Activity test cases.  For more useful classes, please see
 * {@link android.test.ActivityUnitTestCase} and 
 * {@link android.test.ActivityInstrumentationTestCase}.
 */
public abstract class ActivityTestCase extends InstrumentationTestCase {

    /**
     * The activity that will be set up for use in each test method.
     */
    private Activity mActivity;

    /**
     * @return Returns the activity under test.
     */
    protected Activity getActivity() {
        return mActivity;
    }
    
    /**
     * Set the activity under test.
     * @param testActivity The activity under test
     */
    protected void setActivity(Activity testActivity) {
        mActivity = testActivity;
    }
    
    /**
     * This function is called by various TestCase implementations, at tearDown() time, in order
     * to scrub out any class variables.  This protects against memory leaks in the case where a
     * test case creates a non-static inner class (thus referencing the test case) and gives it to
     * someone else to hold onto.
     * 
     * @param testCaseClass The class of the derived TestCase implementation.
     * 
     * @throws IllegalAccessException
     */
    protected void scrubClass(final Class<?> testCaseClass)
    throws IllegalAccessException {
        final Field[] fields = getClass().getDeclaredFields();
        for (Field field : fields) {
            final Class<?> fieldClass = field.getDeclaringClass();
            if (testCaseClass.isAssignableFrom(fieldClass) && !field.getType().isPrimitive()) {
                try {
                    field.setAccessible(true);
                    field.set(this, null);
                } catch (Exception e) {
                    android.util.Log.d("TestCase", "Error: Could not nullify field!");
                }

                if (field.get(this) != null) {
                    android.util.Log.d("TestCase", "Error: Could not nullify field!");
                }
            }
        }
    }

    

}