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Android example source code file (ProviderTestCase.java)

This example Android source code file (ProviderTestCase.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

android, class, content, contentprovider, database, deprecated, illegalaccessexception, instantiationexception, instrumentationtestcase, isolatedcontext, mockcontentresolver, mockcontext, override, providertestcase, renamingdelegatingcontext, string, test, the

The ProviderTestCase.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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package android.test;

import android.content.ContentProvider;
import android.content.ContentResolver;
import android.content.Context;
import android.test.mock.MockContext;
import android.test.mock.MockContentResolver;
import android.database.DatabaseUtils;

 * If you would like to test a single content provider with an
 * {@link InstrumentationTestCase}, this provides some of the boiler plate in {@link #setUp} and
 * {@link #tearDown}.
 * @deprecated this class extends InstrumentationTestCase but should extend AndroidTestCase. Use
 * ProviderTestCase2, which corrects this problem, instead.
public abstract class ProviderTestCase<T extends ContentProvider>
       extends InstrumentationTestCase {

    Class<T> mProviderClass;
    String mProviderAuthority;

    private IsolatedContext mProviderContext;
    private MockContentResolver mResolver;

    public ProviderTestCase(Class<T> providerClass, String providerAuthority) {
        mProviderClass = providerClass;
        mProviderAuthority = providerAuthority;

     * The content provider that will be set up for use in each test method.
    private T mProvider;

    public T getProvider() {
        return mProvider;

    protected void setUp() throws Exception {

        mResolver = new MockContentResolver();
        final String filenamePrefix = "test.";
        RenamingDelegatingContext targetContextWrapper = new RenamingDelegatingContext(
                new MockContext(), // The context that most methods are delegated to
                getInstrumentation().getTargetContext(), // The context that file methods are delegated to
        mProviderContext = new IsolatedContext(mResolver, targetContextWrapper);

        mProvider = mProviderClass.newInstance();
        mProvider.attachInfo(mProviderContext, null);
        mResolver.addProvider(mProviderAuthority, getProvider());

    public MockContentResolver getMockContentResolver() {
        return mResolver;

    public IsolatedContext getMockContext() {
        return mProviderContext;

    public static <T extends ContentProvider> ContentResolver newResolverWithContentProviderFromSql(
            Context targetContext, Class<T> providerClass, String authority,
            String databaseName, int databaseVersion, String sql)
            throws IllegalAccessException, InstantiationException {
        final String filenamePrefix = "test.";
        MockContentResolver resolver = new MockContentResolver();
        RenamingDelegatingContext targetContextWrapper = new RenamingDelegatingContext(
                new MockContext(), // The context that most methods are delegated to
                targetContext, // The context that file methods are delegated to
        Context context = new IsolatedContext(
                resolver, targetContextWrapper);
        DatabaseUtils.createDbFromSqlStatements(context, databaseName, databaseVersion, sql);

        T provider = providerClass.newInstance();
        provider.attachInfo(context, null);
        resolver.addProvider(authority, provider);

        return resolver;

Other Android examples (source code examples)

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