// Make sure we can still delete after adding/updating stuff
//
// Student: Uncomment this test after you have completed writing the delete functionality
// in your provider. It relies on insertions with testInsertReadProvider, so insert and
// query functionality must also be complete before this test can be used.
public void testDeleteRecords() {
testInsertReadProvider();
// Register a content observer for our location delete.
TestUtilities.TestContentObserver locationObserver = TestUtilities.getTestContentObserver();
mContext
.getContentResolver()
.registerContentObserver(LocationEntry.CONTENT_URI, true, locationObserver);
// Register a content observer for our weather delete.
TestUtilities.TestContentObserver weatherObserver = TestUtilities.getTestContentObserver();
mContext
.getContentResolver()
.registerContentObserver(WeatherEntry.CONTENT_URI, true, weatherObserver);
deleteAllRecordsFromProvider();
// Students: If either of these fail, you most-likely are not calling the
// getContext().getContentResolver().notifyChange(uri, null); in the ContentProvider
// delete. (only if the insertReadProvider is succeeding)
locationObserver.waitForNotificationOrFail();
weatherObserver.waitForNotificationOrFail();
mContext.getContentResolver().unregisterContentObserver(locationObserver);
mContext.getContentResolver().unregisterContentObserver(weatherObserver);
}
/*
This test uses the provider to insert and then update the data. Uncomment this test to
see if your update location is functioning correctly.
*/
public void testUpdateLocation() {
// Create a new map of values, where column names are the keys
ContentValues values = TestUtilities.createNorthPoleLocationValues();
Uri locationUri = mContext.getContentResolver().insert(LocationEntry.CONTENT_URI, values);
long locationRowId = ContentUris.parseId(locationUri);
// Verify we got a row back.
assertTrue(locationRowId != -1);
Log.d(LOG_TAG, "New row id: " + locationRowId);
ContentValues updatedValues = new ContentValues(values);
updatedValues.put(LocationEntry._ID, locationRowId);
updatedValues.put(LocationEntry.COLUMN_CITY_NAME, "Santa's Village");
// Create a cursor with observer to make sure that the content provider is notifying
// the observers as expected
Cursor locationCursor =
mContext.getContentResolver().query(LocationEntry.CONTENT_URI, null, null, null, null);
TestUtilities.TestContentObserver tco = TestUtilities.getTestContentObserver();
locationCursor.registerContentObserver(tco);
int count =
mContext
.getContentResolver()
.update(
LocationEntry.CONTENT_URI,
updatedValues,
LocationEntry._ID + "= ?",
new String[] {Long.toString(locationRowId)});
assertEquals(count, 1);
// Test to make sure our observer is called. If not, we throw an assertion.
//
// Students: If your code is failing here, it means that your content provider
// isn't calling getContext().getContentResolver().notifyChange(uri, null);
tco.waitForNotificationOrFail();
locationCursor.unregisterContentObserver(tco);
locationCursor.close();
// A cursor is your primary interface to the query results.
Cursor cursor =
mContext
.getContentResolver()
.query(
LocationEntry.CONTENT_URI,
null, // projection
LocationEntry._ID + " = " + locationRowId,
null, // Values for the "where" clause
null // sort order
);
TestUtilities.validateCursor(
"testUpdateLocation. Error validating location entry update.", cursor, updatedValues);
cursor.close();
}
// Student: Uncomment this test after you have completed writing the BulkInsert functionality
// in your provider. Note that this test will work with the built-in (default) provider
// implementation, which just inserts records one-at-a-time, so really do implement the
// BulkInsert ContentProvider function.
public void testBulkInsert() {
// first, let's create a location value
ContentValues testValues = TestUtilities.createNorthPoleLocationValues();
Uri locationUri = mContext.getContentResolver().insert(LocationEntry.CONTENT_URI, testValues);
long locationRowId = ContentUris.parseId(locationUri);
// Verify we got a row back.
assertTrue(locationRowId != -1);
// Data's inserted. IN THEORY. Now pull some out to stare at it and verify it made
// the round trip.
// A cursor is your primary interface to the query results.
Cursor cursor =
mContext
.getContentResolver()
.query(
LocationEntry.CONTENT_URI,
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
null // sort order
);
TestUtilities.validateCursor(
"testBulkInsert. Error validating LocationEntry.", cursor, testValues);
// Now we can bulkInsert some weather. In fact, we only implement BulkInsert for weather
// entries. With ContentProviders, you really only have to implement the features you
// use, after all.
ContentValues[] bulkInsertContentValues = createBulkInsertWeatherValues(locationRowId);
// Register a content observer for our bulk insert.
TestUtilities.TestContentObserver weatherObserver = TestUtilities.getTestContentObserver();
mContext
.getContentResolver()
.registerContentObserver(WeatherEntry.CONTENT_URI, true, weatherObserver);
int insertCount =
mContext.getContentResolver().bulkInsert(WeatherEntry.CONTENT_URI, bulkInsertContentValues);
// Students: If this fails, it means that you most-likely are not calling the
// getContext().getContentResolver().notifyChange(uri, null); in your BulkInsert
// ContentProvider method.
weatherObserver.waitForNotificationOrFail();
mContext.getContentResolver().unregisterContentObserver(weatherObserver);
assertEquals(insertCount, BULK_INSERT_RECORDS_TO_INSERT);
// A cursor is your primary interface to the query results.
cursor =
mContext
.getContentResolver()
.query(
WeatherEntry.CONTENT_URI,
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
WeatherEntry.COLUMN_DATE + " ASC" // sort order == by DATE ASCENDING
);
// we should have as many records in the database as we've inserted
assertEquals(cursor.getCount(), BULK_INSERT_RECORDS_TO_INSERT);
// and let's make sure they match the ones we created
cursor.moveToFirst();
for (int i = 0; i < BULK_INSERT_RECORDS_TO_INSERT; i++, cursor.moveToNext()) {
TestUtilities.validateCurrentRecord(
"testBulkInsert. Error validating WeatherEntry " + i,
cursor,
bulkInsertContentValues[i]);
}
cursor.close();
}
// Make sure we can still delete after adding/updating stuff
//
// Student: Uncomment this test after you have completed writing the insert functionality
// in your provider. It relies on insertions with testInsertReadProvider, so insert and
// query functionality must also be complete before this test can be used.
public void testInsertReadProvider() {
ContentValues testValues = TestUtilities.createNorthPoleLocationValues();
// Register a content observer for our insert. This time, directly with the content resolver
TestUtilities.TestContentObserver tco = TestUtilities.getTestContentObserver();
mContext.getContentResolver().registerContentObserver(LocationEntry.CONTENT_URI, true, tco);
Uri locationUri = mContext.getContentResolver().insert(LocationEntry.CONTENT_URI, testValues);
// Did our content observer get called? Students: If this fails, your insert location
// isn't calling getContext().getContentResolver().notifyChange(uri, null);
tco.waitForNotificationOrFail();
mContext.getContentResolver().unregisterContentObserver(tco);
long locationRowId = ContentUris.parseId(locationUri);
// Verify we got a row back.
assertTrue(locationRowId != -1);
// Data's inserted. IN THEORY. Now pull some out to stare at it and verify it made
// the round trip.
// A cursor is your primary interface to the query results.
Cursor cursor =
mContext
.getContentResolver()
.query(
LocationEntry.CONTENT_URI,
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
null // sort order
);
TestUtilities.validateCursor(
"testInsertReadProvider. Error validating LocationEntry.", cursor, testValues);
// Fantastic. Now that we have a location, add some weather!
ContentValues weatherValues = TestUtilities.createWeatherValues(locationRowId);
// The TestContentObserver is a one-shot class
tco = TestUtilities.getTestContentObserver();
mContext.getContentResolver().registerContentObserver(WeatherEntry.CONTENT_URI, true, tco);
Uri weatherInsertUri =
mContext.getContentResolver().insert(WeatherEntry.CONTENT_URI, weatherValues);
assertTrue(weatherInsertUri != null);
// Did our content observer get called? Students: If this fails, your insert weather
// in your ContentProvider isn't calling
// getContext().getContentResolver().notifyChange(uri, null);
tco.waitForNotificationOrFail();
mContext.getContentResolver().unregisterContentObserver(tco);
// A cursor is your primary interface to the query results.
Cursor weatherCursor =
mContext
.getContentResolver()
.query(
WeatherEntry.CONTENT_URI, // Table to Query
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
null // columns to group by
);
TestUtilities.validateCursor(
"testInsertReadProvider. Error validating WeatherEntry insert.",
weatherCursor,
weatherValues);
// Add the location values in with the weather data so that we can make
// sure that the join worked and we actually get all the values back
weatherValues.putAll(testValues);
// Get the joined Weather and Location data
weatherCursor =
mContext
.getContentResolver()
.query(
WeatherEntry.buildWeatherLocation(TestUtilities.TEST_LOCATION),
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
null // sort order
);
TestUtilities.validateCursor(
"testInsertReadProvider. Error validating joined Weather and Location Data.",
weatherCursor,
weatherValues);
// Get the joined Weather and Location data with a start date
weatherCursor =
mContext
.getContentResolver()
.query(
WeatherEntry.buildWeatherLocationWithStartDate(
TestUtilities.TEST_LOCATION, TestUtilities.TEST_DATE),
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
null // sort order
);
TestUtilities.validateCursor(
"testInsertReadProvider. Error validating joined Weather and Location Data with start date.",
weatherCursor,
weatherValues);
// Get the joined Weather data for a specific date
weatherCursor =
mContext
.getContentResolver()
.query(
WeatherEntry.buildWeatherLocationWithDate(
TestUtilities.TEST_LOCATION, TestUtilities.TEST_DATE),
null,
null,
null,
null);
TestUtilities.validateCursor(
"testInsertReadProvider. Error validating joined Weather and Location data for a specific date.",
weatherCursor,
weatherValues);
}