Add a few test util functions and refactor existing test code

libs/ardour/test/session_test.cc

@@ -21,38 +21,6 @@ using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-static TextReceiver text_receiver ("test");
-
-void
-SessionTest::setUp ()
-{
-	SessionEvent::create_per_thread_pool ("session_test", 512);
-
-	text_receiver.listen_to (error);
-	text_receiver.listen_to (info);
-	text_receiver.listen_to (fatal);
-	text_receiver.listen_to (warning);
-
-	AudioEngine* engine = AudioEngine::create ();
-
-	CPPUNIT_ASSERT (engine);
-
-	CPPUNIT_ASSERT (engine->set_backend ("Dummy", "", ""));
-
-	init_post_engine ();
-
-	CPPUNIT_ASSERT (engine->start () == 0);
-}
-
-void
-SessionTest::tearDown ()
-{
-	// this is needed or there is a crash in MIDI::Manager::destroy
-	AudioEngine::instance()->remove_session ();
-	AudioEngine::instance()->stop ();
-	AudioEngine::destroy ();
-}
-
 void
 SessionTest::new_session ()
 {
@@ -61,20 +29,16 @@ SessionTest::new_session ()
 
 	CPPUNIT_ASSERT (!Glib::file_test (new_session_dir, Glib::FILE_TEST_EXISTS));
 
-	Session* new_session = 0;
-	AudioEngine::create ();
+	create_and_start_dummy_backend ();
 
-	new_session = new Session (*AudioEngine::instance (), new_session_dir, session_name);
+	ARDOUR::Session* new_session = load_session (new_session_dir, "test_session");
 
 	CPPUNIT_ASSERT (new_session);
 
-	// shouldn't need to do this as it is done in Session constructor
-	// via Session::when_engine_running
-	//AudioEngine::instance->set_session (new_session);
-
 	new_session->save_state ("");
 
 	delete new_session;
+	stop_and_destroy_backend ();
 }
 
 void
@@ -94,7 +58,8 @@ SessionTest::new_session_from_template ()
 
 	Session* new_session = 0;
 	BusProfile* bus_profile = 0;
-	AudioEngine::create ();
+
+	create_and_start_dummy_backend ();
 
 	// create a new session based on session template
 	new_session = new Session (*AudioEngine::instance (), new_session_dir, session_name,
@@ -105,6 +70,10 @@ SessionTest::new_session_from_template ()
 	new_session->save_state ("");
 
 	delete new_session;
+	stop_and_destroy_backend ();
+
+	// keep the same audio backend
+	create_and_start_dummy_backend ();
 
 	Session* template_session = 0;
 
@@ -114,4 +83,5 @@ SessionTest::new_session_from_template ()
 	CPPUNIT_ASSERT (template_session);
 
 	delete template_session;
+	stop_and_destroy_backend ();
 }

libs/ardour/test/session_test.h

@@ -10,8 +10,6 @@ class SessionTest : public CppUnit::TestFixture
 	CPPUNIT_TEST_SUITE_END ();
 
 public:
-	virtual void setUp ();
-	virtual void tearDown ();
 
 	void new_session ();
 	void new_session_from_template ();

libs/ardour/test/test_needing_session.cc

@@ -16,6 +16,7 @@ TestNeedingSession::setUp ()
 {
 	const string session_name("test_session");
 	std::string new_session_dir = Glib::build_filename (new_test_output_dir(), session_name);
+	create_and_start_dummy_backend ();
 	_session = load_session (new_session_dir, "test_session");
 }
 
@@ -23,8 +24,6 @@ void
 TestNeedingSession::tearDown ()
 {
 	delete _session;
-	AudioEngine::instance()->remove_session ();
-	AudioEngine::instance()->stop ();
-	AudioEngine::destroy ();
+	stop_and_destroy_backend ();
 	_session = 0;
 }

libs/ardour/test/test_util.cc

@@ -135,11 +135,8 @@ protected:
 
 TestReceiver test_receiver;
 
-/** @param dir Session directory.
- *  @param state Session state file, without .ardour suffix.
- */
-Session *
-load_session (string dir, string state)
+bool
+test_init ()
 {
 	SessionEvent::create_per_thread_pool ("test", 512);
 
@@ -152,17 +149,39 @@ load_session (string dir, string state)
 	   required bits in gtk2_ardour.
 	*/
 	Config->set_use_lxvst (false);
+	return true;
+}
 
+void
+create_and_start_dummy_backend ()
+{
 	AudioEngine* engine = AudioEngine::create ();
 
+	CPPUNIT_ASSERT (AudioEngine::instance ());
+	CPPUNIT_ASSERT (engine);
 	CPPUNIT_ASSERT (engine->set_backend ("Dummy", "", ""));
 
 	init_post_engine ();
 
 	CPPUNIT_ASSERT (engine->start () == 0);
+}
 
-	Session* session = new Session (*engine, dir, state);
-	engine->set_session (session);
+void
+stop_and_destroy_backend ()
+{
+	AudioEngine::instance()->remove_session ();
+	AudioEngine::instance()->stop ();
+	AudioEngine::destroy ();
+}
+
+/** @param dir Session directory.
+ *  @param state Session state file, without .ardour suffix.
+ */
+Session *
+load_session (string dir, string state)
+{
+	Session* session = new Session (*AudioEngine::instance(), dir, state);
+	AudioEngine::instance ()->set_session (session);
 	return session;
 }
 

libs/ardour/test/test_util.h

@@ -31,6 +31,8 @@ namespace ARDOUR {
 	class Session;
 }
 
+bool test_init ();
+
 PBD::Searchpath test_search_path ();
 
 std::string new_test_output_dir (std::string prefix = "");
@@ -39,6 +41,8 @@ int get_test_sample_rate ();
 
 extern void check_xml (XMLNode *, std::string, std::list<std::string> const &);
 extern bool write_ref (XMLNode *, std::string);
+extern void create_and_start_dummy_backend ();
+extern void stop_and_destroy_backend ();
 extern ARDOUR::Session* load_session (std::string, std::string);
 
 #endif

libs/ardour/test/testrunner.cc

@@ -3,6 +3,7 @@
 
 #include <cppunit/CompilerOutputter.h>
 #include <cppunit/extensions/TestFactoryRegistry.h>
+#include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/TestResult.h>
 #include <cppunit/TestResultCollector.h>
 #include <cppunit/TestRunner.h>
@@ -10,6 +11,7 @@
 
 #include "pbd/debug.h"
 #include "ardour/ardour.h"
+#include "test_util.h"
 
 static const char* localedir = LOCALEDIR;
 
@@ -47,7 +49,9 @@ main(int argc, char* argv[])
 		}
 	}
 
-	ARDOUR::init (false, true, localedir);
+	CPPUNIT_ASSERT (ARDOUR::init (false, true, localedir));
+
+	CPPUNIT_ASSERT (test_init ());
 	
 	CppUnit::TestResult testresult;