gistfile1.txt

[exportSession exportAsynchronouslyWithCompletionHandler:^{
	NSLog( @"exported to %@", [exportSession.outputURL path] );
}];

TEST_WAIT_UNTIL_TRUE( (exportSession.status == AVAssetExportSessionStatusCancelled ||
					   exportSession.status == AVAssetExportSessionStatusFailed    ||
					   exportSession.status == AVAssetExportSessionStatusCompleted) );

STAssertTrue( exportSession.status == AVAssetExportSessionStatusCompleted, @"export failed" );