Javadoc for test case classes (7d433aab) · Commits · e / os / android_frameworks_base

test-runner/src/android/test/ProviderTestCase2.java

+105 −16

Original line number	Diff line number	Diff line
		@@ -27,15 +27,44 @@ import android.database.DatabaseUtils;
		import java.io.File;

		/**
		* This TestCase class provides a framework for isolated testing of a single
		* ContentProvider. It uses a {@link android.test.mock.MockContentResolver} to
		* access the provider, restricts the provider to an isolated area of the
		* filesystem (for safely creating & modifying databases & files), and injects
		* {@link android.test.IsolatedContext} to isolate the ContentProvider from the
		* rest of the running system.
		*
		* <p>This environment is created automatically by {@link #setUp} and {@link
		* #tearDown}.
		* This test case class provides a framework for testing a single
		* {@link ContentProvider} and for testing your app code with an
		* isolated content provider. Instead of using the system map of
		* providers that is based on the manifests of other applications, the test
		* case creates its own internal map. It then uses this map to resolve providers
		* given an authority. This allows you to inject test providers and to null out
		* providers that you do not want to use.
		* <p>
		* This test case also sets up the following mock objects:
		* </p>
		* <ul>
		* <li>
		* An {@link android.test.IsolatedContext} that stubs out Context methods that might
		* affect the rest of the running system, while allowing tests to do real file and
		* database work.
		* </li>
		* <li>
		* A {@link android.test.mock.MockContentResolver} that provides the functionality of a
		* regular content resolver, but uses {@link IsolatedContext}. It stubs out
		* {@link ContentResolver#notifyChange(Uri, ContentObserver, boolean)} to
		* prevent the test from affecting the running system.
		* </li>
		* <li>
		* An instance of the provider under test, running in an {@link IsolatedContext}.
		* </li>
		* </ul>
		* <p>
		* This framework is set up automatically by the base class' {@link #setUp()} method. If you
		* override this method, you must call the super method as the first statement in
		* your override.
		* </p>
		* <p>
		* In order for their tests to be run, concrete subclasses must provide their own
		* constructor with no arguments. This constructor must call
		* {@link #ProviderTestCase2(Class, String)} as its first operation.
		* </p>
		* For more information on content provider testing, please see
		* <a href="{@docRoot}guide/topics/testing/provider_testing.html">Content Provider Testing</a>.
		*/
		public abstract class ProviderTestCase2<T extends ContentProvider> extends AndroidTestCase {

		@@ -54,34 +83,53 @@ public abstract class ProviderTestCase2<T extends ContentProvider> extends Andro

		@Override
		public File getDir(String name, int mode) {
		// name the directory so the directory will be seperated from
		// name the directory so the directory will be separated from
		// one created through the regular Context
		return getContext().getDir("mockcontext2_" + name, mode);
		}
		}

		/**
		* Constructor.
		*
		* @param providerClass The class name of the provider under test
		* @param providerAuthority The provider's authority string
		*/
		public ProviderTestCase2(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;

		/**
		* Returns the content provider created by this class in the {@link #setUp()} method.
		* @return T An instance of the provider class given as a parameter to the test case class.
		*/
		public T getProvider() {
		return mProvider;
		}

		/**
		* Sets up the environment for the test fixture.
		* <p>
		* Creates a new
		* {@link android.test.mock.MockContentResolver}, a new IsolatedContext
		* that isolates the provider's file operations, and a new instance of
		* the provider under test within the isolated environment.
		* </p>
		*
		* @throws Exception
		*/
		@Override
		protected void setUp() throws Exception {
		super.setUp();

		mResolver = new MockContentResolver();
		final String filenamePrefix = "test.";
		RenamingDelegatingContext targetContextWrapper = new RenamingDelegatingContext(
		new MockContext2(), // The context that most methods are delegated to
		RenamingDelegatingContext targetContextWrapper = new
		RenamingDelegatingContext(
		new MockContext2(), // The context that most methods are
		//delegated to
		getContext(), // The context that file methods are delegated to
		filenamePrefix);
		mProviderContext = new IsolatedContext(mResolver, targetContextWrapper);
		@@ -92,14 +140,55 @@ public abstract class ProviderTestCase2<T extends ContentProvider> extends Andro
		mResolver.addProvider(mProviderAuthority, getProvider());
		}

		/**
		* Gets the {@link MockContentResolver} created by this class during initialization. You
		* must use the methods of this resolver to access the provider under test.
		*
		* @return A {@link MockContentResolver} instance.
		*/
		public MockContentResolver getMockContentResolver() {
		return mResolver;
		}

		/**
		* Gets the {@link IsolatedContext} created by this class during initialization.
		* @return The {@link IsolatedContext} instance
		*/
		public IsolatedContext getMockContext() {
		return mProviderContext;
		}

		/**
		* <p>
		* Creates a new content provider of the same type as that passed to the test case class,
		* with an authority name set to the authority parameter, and using an SQLite database as
		* the underlying data source. The SQL statement parameter is used to create the database.
		* This method also creates a new {@link MockContentResolver} and adds the provider to it.
		* </p>
		* <p>
		* Both the new provider and the new resolver are put into an {@link IsolatedContext}
		* that uses the targetContext parameter for file operations and a {@link MockContext}
		* for everything else. The IsolatedContext prepends the filenamePrefix parameter to
		* file, database, and directory names.
		* </p>
		* <p>
		* This is a convenience method for creating a "mock" provider that can contain test data.
		* </p>
		*
		* @param targetContext The context to use as the basis of the IsolatedContext
		* @param filenamePrefix A string that is prepended to file, database, and directory names
		* @param providerClass The type of the provider being tested
		* @param authority The authority string to associated with the test provider
		* @param databaseName The name assigned to the database
		* @param databaseVersion The version assigned to the database
		* @param sql A string containing the SQL statements that are needed to create the desired
		* database and its tables. The format is the same as that generated by the
		* <a href="http://www.sqlite.org/sqlite.html">sqlite3</a> tool's <code>.dump</code> command.
		* @return ContentResolver A new {@link MockContentResolver} linked to the provider
		*
		* @throws IllegalAccessException
		* @throws InstantiationException
		*/
		public static <T extends ContentProvider> ContentResolver newResolverWithContentProviderFromSql(
		Context targetContext, String filenamePrefix, Class<T> providerClass, String authority,
		String databaseName, int databaseVersion, String sql)

test-runner/src/android/test/ServiceTestCase.java

+154 −95

Original line number	Diff line number	Diff line
		@@ -31,42 +31,64 @@ import java.util.Random;
		/**
		* This test case provides a framework in which you can test Service classes in
		* a controlled environment. It provides basic support for the lifecycle of a
		* Service, and hooks by which you can inject various dependencies and control
		* Service, and hooks with which you can inject various dependencies and control
		* the environment in which your Service is tested.
		*
		* <p><b>Lifecycle Support.</b>
		* Every Service is designed to be accessed within a specific sequence of
		* calls. <insert link to Service lifecycle doc here>.
		* In order to support the lifecycle of a Service, this test case will make the
		* following calls at the following times.
		* A Service is accessed with a specific sequence of
		* calls, as documented in the section
		* <a href="http://developer.android.com/guide/topics/fundamentals.html#servlife">
		* Service lifecycle</a> in the Developer Guide. In order to support the lifecycle of a Service,
		* <code>ServiceTestCase</code> enforces this protocol:
		*
		* <ul><li>The test case will not call onCreate() until your test calls
		* {@link #startService} or {@link #bindService}. This gives you a chance
		* to set up or adjust any additional framework or test logic before
		* onCreate().</li>
		* <li>When your test calls {@link #startService} or {@link #bindService}
		* the test case will call onCreate(), and then call the corresponding entry point in your service.
		* It will record any parameters or other support values necessary to support the lifecycle.</li>
		* <li>After your test completes, the test case {@link #tearDown} function is
		* automatically called, and it will stop and destroy your service with the appropriate
		* calls (depending on how your test invoked the service.)</li>
		* <ul>
		* <li>
		* The {@link #setUp()} method is called before each test method. The base implementation
		* gets the system context. If you override <code>setUp()</code>, you must call
		* <code>super.setUp()</code> as the first statement in your override.
		* </li>
		* <li>
		* The test case waits to call {@link android.app.Service#onCreate()} until one of your
		* test methods calls {@link #startService} or {@link #bindService}. This gives you an
		* opportunity to set up or adjust any additional framework or test logic before you test
		* the running service.
		* </li>
		* <li>
		* When one of your test methods calls {@link #startService ServiceTestCase.startService()}
		* or {@link #bindService ServiceTestCase.bindService()}, the test case calls
		* {@link android.app.Service#onCreate() Service.onCreate()} and then calls either
		* {@link android.app.Service#startService(Intent) Service.startService(Intent)} or
		* {@link android.app.Service#bindService(Intent, ServiceConnection, int)
		* Service.bindService(Intent, ServiceConnection, int)}, as appropriate. It also stores
		* values needed to track and support the lifecycle.
		* </li>
		* <li>
		* After each test method finishes, the test case calls the {@link #tearDown} method. This
		* method stops and destroys the service with the appropriate calls, depending on how the
		* service was started. If you override <code>tearDown()</code>, your must call the
		* <code>super.tearDown()</code> as the last statement in your override.
		* </li>
		* </ul>
		*
		* <p><b>Dependency Injection.</b>
		* Every service has two inherent dependencies, the {@link android.content.Context Context} in
		* which it runs, and the {@link android.app.Application Application} with which it is associated.
		* This framework allows you to inject modified, mock, or isolated replacements for these
		* dependencies, and thus perform a true unit test.
		*
		* <p>If simply run your tests as-is, your Service will be injected with a fully-functional
		* Context, and a generic {@link android.test.mock.MockApplication MockApplication} object.
		* You can create and inject alternatives to either of these by calling
		* <p>
		* <strong>Dependency Injection.</strong>
		* A service has two inherent dependencies, its {@link android.content.Context Context} and its
		* associated {@link android.app.Application Application}. The ServiceTestCase framework
		* allows you to inject modified, mock, or isolated replacements for these dependencies, and
		* thus perform unit tests with controlled dependencies in an isolated environment.
		* </p>
		* <p>
		* By default, the test case is injected with a full system context and a generic
		* {@link android.test.mock.MockApplication MockApplication} object. You can inject
		* alternatives to either of these by invoking
		* {@link AndroidTestCase#setContext(Context) setContext()} or
		* {@link #setApplication setApplication()}. You must do this <i>before</i> calling
		* {@link #setApplication setApplication()}. You must do this <em>before</em> calling
		* startService() or bindService(). The test framework provides a
		* number of alternatives for Context, including {link android.test.mock.MockContext MockContext},
		* {@link android.test.RenamingDelegatingContext RenamingDelegatingContext}, and
		* {@link android.content.ContextWrapper ContextWrapper}.
		* number of alternatives for Context, including
		* {link android.test.mock.MockContext MockContext},
		* {@link android.test.RenamingDelegatingContext RenamingDelegatingContext},
		* {@link android.content.ContextWrapper ContextWrapper}, and
		* {@link android.test.IsolatedContext}.
		*/
		public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase {

		@@ -75,6 +97,10 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		private Context mSystemContext;
		private Application mApplication;

		/**
		* Constructor
		* @param serviceClass The type of the service under test.
		*/
		public ServiceTestCase(Class<T> serviceClass) {
		mServiceClass = serviceClass;
		}
		@@ -88,15 +114,19 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		private int mServiceId;

		/**
		* @return Returns the actual service under test.
		* @return An instance of the service under test. This instance is created automatically when
		* a test calls {@link #startService} or {@link #bindService}.
		*/
		public T getService() {
		return mService;
		}

		/**
		* This will do the work to instantiate the Service under test. After this, your test
		* code must also start and stop the service.
		* Gets the current system context and stores it.
		*
		* Extend this method to do your own test initialization. If you do so, you
		* must call <code>super.setUp()</code> as the first statement in your override. The method is
		* called before each test method is executed.
		*/
		@Override
		protected void setUp() throws Exception {
		@@ -108,10 +138,11 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* Create the service under test and attach all injected dependencies (Context, Application) to
		* it. This will be called automatically by {@link #startService} or by {@link #bindService}.
		* If you wish to call {@link AndroidTestCase#setContext(Context) setContext()} or
		* {@link #setApplication setApplication()}, you must do so before calling this function.
		* Creates the service under test and attaches all injected dependencies
		* (Context, Application) to it. This is called automatically by {@link #startService} or
		* by {@link #bindService}.
		* If you need to call {@link AndroidTestCase#setContext(Context) setContext()} or
		* {@link #setApplication setApplication()}, do so before calling this method.
		*/
		protected void setupService() {
		mService = null;
		@@ -139,12 +170,14 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* Start the service under test, in the same way as if it was started by
		* {@link android.content.Context#startService Context.startService()}, providing the
		* arguments it supplied. If you use this method to start the service, it will automatically
		* be stopped by {@link #tearDown}.
		* Starts the service under test, in the same way as if it were started by
		* {@link android.content.Context#startService(Intent) Context.startService(Intent)} with
		* an {@link android.content.Intent} that identifies a service.
		* If you use this method to start the service, it is automatically stopped by
		* {@link #tearDown}.
		*
		* @param intent The Intent as if supplied to {@link android.content.Context#startService}.
		* @param intent An Intent that identifies a service, of the same form as the Intent passed to
		* {@link android.content.Context#startService(Intent) Context.startService(Intent)}.
		*/
		protected void startService(Intent intent) {
		if (!mServiceAttached) {
		@@ -162,22 +195,34 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* Start the service under test, in the same way as if it was started by
		* {@link android.content.Context#bindService Context.bindService()}, providing the
		* arguments it supplied.
		*
		* Return the communication channel to the service. May return null if
		* clients can not bind to the service. The returned
		* {@link android.os.IBinder} is usually for a complex interface
		* that has been <a href="{@docRoot}guide/developing/tools/aidl.html">described using
		* aidl</a>.
		* <p>
		* Starts the service under test, in the same way as if it were started by
		* {@link android.content.Context#bindService(Intent, ServiceConnection, int)
		* Context.bindService(Intent, ServiceConnection, flags)} with an
		* {@link android.content.Intent} that identifies a service.
		* </p>
		* <p>
		* Notice that the parameters are different. You do not provide a
		* {@link android.content.ServiceConnection} object or the flags parameter. Instead,
		* you only provide the Intent. The method returns an object whose type is a
		* subclass of {@link android.os.IBinder}, or null if the method fails. An IBinder
		* object refers to a communication channel between the application and
		* the service. The flag is assumed to be {@link android.content.Context#BIND_AUTO_CREATE}.
		* </p>
		* <p>
		* See <a href="{@docRoot}guide/developing/tools/aidl.html">Designing a Remote Interface
		* Using AIDL</a> for more information about the communication channel object returned
		* by this method.
		* </p>
		* Note: To be able to use bindService in a test, the service must implement getService()
		* method. An example of this is in the ApiDemos sample application, in the
		* LocalService demo.
		*
		* Note: In order to test with this interface, your service must implement a getService()
		* method, as shown in samples.ApiDemos.app.LocalService.

		* @param intent The Intent as if supplied to {@link android.content.Context#bindService}.
		* @param intent An Intent object of the form expected by
		* {@link android.content.Context#bindService}.
		*
		* @return Return an IBinder for making further calls into the Service.
		* @return An object whose type is a subclass of IBinder, for making further calls into
		* the service.
		*/
		protected IBinder bindService(Intent intent) {
		if (!mServiceAttached) {
		@@ -198,9 +243,9 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* This will make the necessary calls to stop (or unbind) the Service under test, and
		* call onDestroy(). Ordinarily this will be called automatically (by {@link #tearDown}, but
		* you can call it directly from your test in order to check for proper shutdown behaviors.
		* Makes the necessary calls to stop (or unbind) the service under test, and
		* calls onDestroy(). Ordinarily this is called automatically (by {@link #tearDown}, but
		* you can call it directly from your test in order to check for proper shutdown behavior.
		*/
		protected void shutdownService() {
		if (mServiceStarted) {
		@@ -216,10 +261,15 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* Shuts down the Service under test. Also makes sure all resources are cleaned up and
		* garbage collected before moving on to the next
		* test. Subclasses that override this method should make sure they call super.tearDown()
		* at the end of the overriding method.
		* <p>
		* Shuts down the service under test. Ensures all resources are cleaned up and
		* garbage collected before moving on to the next test. This method is called after each
		* test method.
		* </p>
		* <p>
		* Subclasses that override this method must call <code>super.tearDown()</code> as their
		* last statement.
		* </p>
		*
		* @throws Exception
		*/
		@@ -237,19 +287,21 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* Set the application for use during the test. If your test does not call this function,
		* a new {@link android.test.mock.MockApplication MockApplication} object will be generated.
		* Sets the application that is used during the test. If you do not call this method,
		* a new {@link android.test.mock.MockApplication MockApplication} object is used.
		*
		* @param application The Application object that will be injected into the Service under test.
		* @param application The Application object that is used by the service under test.
		*
		* @see #getApplication()
		*/
		public void setApplication(Application application) {
		mApplication = application;
		}

		/**
		* Return the Application object being used by the Service under test.
		* Returns the Application object in use by the service under test.
		*
		* @return Returns the application object.
		* @return The application object.
		*
		* @see #setApplication
		*/
		@@ -258,15 +310,22 @@ public abstract class ServiceTestCase<T extends Service> extends AndroidTestCase
		}

		/**
		* Return a real (not mocked or instrumented) system Context that can be used when generating
		* Mock or other Context objects for your Service under test.
		* Returns the real system context that is saved by {@link #setUp()}. Use it to create
		* mock or other types of context objects for the service under test.
		*
		* @return Returns a reference to a normal Context.
		* @return A normal system context.
		*/
		public Context getSystemContext() {
		return mSystemContext;
		}

		/**
		* Tests that {@link #setupService()} runs correctly and issues an
		* {@link junit.framework.Assert#assertNotNull(String, Object)} if it does.
		* You can override this test method if you wish.
		*
		* @throws Exception
		*/
		public void testServiceTestCaseSetUpProperly() throws Exception {
		setupService();
		assertNotNull("service should be launched successfully", mService);

test-runner/src/android/test/mock/MockContentResolver.java

+48 −7

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