Add a test for the memchecker.

2 files changed, 124 insertions, 1 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
index 8a746a6..9a7fa82 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -2,7 +2,8 @@
 include $(top_srcdir)/src/Makefile.am.drumgizmo
 
 TESTS = resource engine gui resampler lv2 configfile audiocache \
-	audiocachefile audiocacheidmanager audiocacheeventhandler
+	audiocachefile audiocacheidmanager audiocacheeventhandler \
+	memchecker
 
 check_PROGRAMS = $(TESTS)
 
@@ -117,5 +118,15 @@ configfile_SOURCES = \
 	test.cc \
 	configtest.cc
 
+memchecker_CXXFLAGS = -DOUTPUT=\"memchecker\" $(CPPUNIT_CFLAGS) \
+	-I$(top_srcdir)/src -I$(top_srcdir)/include \
+	-I$(top_srcdir)/hugin -DDISABLE_HUGIN
+memcheckere_CFLAGS = -DDISABLE_HUGIN
+memchecker_LDFLAGS = $(CPPUNIT_LIBS) $(DRUMGIZMO_LIBS)
+memchecker_SOURCES = \
+	$(DRUMGIZMO_SOURCES) \
+	test.cc \
+	memcheckertest.cc
+
 EXTRA_DIST = \
 	lv2_test_host.h
diff --git a/test/memcheckertest.cc b/test/memcheckertest.cc
new file mode 100644
index 0000000..b2aab27
--- /dev/null
+++ b/test/memcheckertest.cc
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            memcheckertest.cc
+ *
+ *  Mon Jan 18 15:08:31 CET 2016
+ *  Copyright 2016 André Nusser
+ *  andre.nusser@googlemail.com
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+
+// This test should include:
+// -------------------------
+// * Load a small drumkit and check that the memchecker doesn't warn.
+//	-> this assumes that the system is not already swapping which is sane imo.
+// * Load a huge drumkit and check that the memchecker does warn.
+// * Load a kit where we exactly know the size of the audio files and check if it's correct.
+// * Check if the amount of free ram is in a realistic range.
+//
+// NOTE: This test will fail if your system is currently swapping or has an extremely small amount of RAM.
+
+#include <cppunit/extensions/HelperMacros.h>
+
+#include "../src/memchecker.h"
+#include "../src/drumkit.h"
+#include "../src/drumkitparser.h"
+
+class test_memchecker
+	: public CppUnit::TestFixture
+	, public Memchecker
+{
+	CPPUNIT_TEST_SUITE(test_memchecker);
+	CPPUNIT_TEST(small_drumkit);
+	CPPUNIT_TEST(huge_drumkit);
+	CPPUNIT_TEST(correct_size);
+	CPPUNIT_TEST(check_free_ram);
+	CPPUNIT_TEST_SUITE_END();
+private:
+	DrumKit kit;
+
+	const std::string smallKitPath = "kit/small_kit.xml";
+	const std::string hugeKitPath = "kit/huge_kit.xml";
+	const std::string audiofile = "kit/ride-multi-channel.wav";
+public:
+	void setUp()
+	{
+		// just to be sure
+		kit.clear();
+	}
+
+	void tearDown()
+	{}
+
+	void small_drumkit()
+	{
+		// load the small kit
+		DrumKitParser parser(smallKitPath, kit);
+		CPPUNIT_ASSERT(!parser.parse());
+
+		// check if the memchecker thinks it fits into memory
+		CPPUNIT_ASSERT(enoughFreeMemory(kit));
+	}
+
+	void huge_drumkit()
+	{
+		// load the huge kit
+		DrumKitParser parser(hugeKitPath, kit);
+		CPPUNIT_ASSERT(!parser.parse());
+
+		// check if the memchecker thinks it doesn't fit into memory
+		CPPUNIT_ASSERT(!enoughFreeMemory(kit));
+	}
+
+	void correct_size()
+	{
+		// check if the memchecker reports the right audiofile size
+		CPPUNIT_ASSERT_EQUAL((size_t)2199332, calcBytesPerChannel(audiofile));
+
+		// load the huge kit
+		DrumKitParser parser(hugeKitPath, kit);
+		CPPUNIT_ASSERT(!parser.parse());
+
+		// check if the protected method of the memchecker reports the correct size
+		CPPUNIT_ASSERT_EQUAL((size_t)71478290000, calcNeededMemory(kit));
+	}
+
+	void check_free_ram()
+	{
+		// check if the protected method reports a sane value of free ram
+		size_t free_memory = calcFreeMemory();
+		CPPUNIT_ASSERT(free_memory >= (size_t)1000 && free_memory <= (size_t)50000000000);
+	}
+};
+
+// Registers the fixture into the 'registry'
+CPPUNIT_TEST_SUITE_REGISTRATION(test_memchecker);