Split CacheManager into several AudioCache classes and refactored the lot of them. Unit tests added.

1 files changed, 189 insertions, 0 deletions

diff --git a/test/audiocachefiletest.cc b/test/audiocachefiletest.cc
new file mode 100644
index 0000000..a70091c
--- /dev/null
+++ b/test/audiocachefiletest.cc
@@ -0,0 +1,189 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            audiocachefiletest.cc
+ *
+ *  Thu Jan  7 15:43:12 CET 2016
+ *  Copyright 2016 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  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.
+ */
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <cstring>
+
+#include <audiocachefile.h>
+#include <audiofile.h>
+
+class TestableAudioCacheFiles : public AudioCacheFiles
+{
+public:
+	//CacheAudioFile& getAudioFile(const std::string& filename);
+	//void release(const std::string& filename);
+	int getRef(const std::string& filename)
+	{
+		if(audiofiles.find(filename) == audiofiles.end())
+		{
+			return -1;
+		}
+
+		return audiofiles[filename]->ref;
+	}
+};
+
+class AudioCacheFileTest : public CppUnit::TestFixture
+{
+	CPPUNIT_TEST_SUITE(AudioCacheFileTest);
+	CPPUNIT_TEST(refTest);
+	CPPUNIT_TEST(readTest);
+	CPPUNIT_TEST_SUITE_END();
+
+public:
+	void setUp() {}
+	void tearDown() {}
+
+	void refTest()
+	{
+		TestableAudioCacheFiles audiofiles;
+		std::string filename = "kit/ride-single-channel.wav";
+		CPPUNIT_ASSERT_EQUAL(-1, audiofiles.getRef(filename));
+
+		audiofiles.getFile(filename);
+		CPPUNIT_ASSERT_EQUAL(1, audiofiles.getRef(filename));
+
+		audiofiles.getFile(filename);
+		CPPUNIT_ASSERT_EQUAL(2, audiofiles.getRef(filename));
+
+		audiofiles.releaseFile(filename);
+		CPPUNIT_ASSERT_EQUAL(1, audiofiles.getRef(filename));
+
+		audiofiles.releaseFile(filename);
+		CPPUNIT_ASSERT_EQUAL(-1, audiofiles.getRef(filename));
+	}
+
+	void readTestHelper(size_t bufferSize)
+	{
+		printf("Test buffer size: %d samples\n", bufferSize);
+
+		std::string filename = "kit/ride-multi-channel.wav";
+		AudioFile* refFile[13];
+		for(size_t c = 0; c < 13; ++c)
+		{
+			refFile[c] = new AudioFile(filename, c);
+			refFile[c]->load();
+		}
+
+		AudioCacheFile file(filename);
+		CPPUNIT_ASSERT_EQUAL(filename, file.getFilename());
+		CPPUNIT_ASSERT_EQUAL(13, (int)file.getChannelCount()); // Sanity check
+
+		CacheChannels channels;
+
+		sample_t samples[13][bufferSize];
+		volatile bool ready[13];
+		for(size_t c = 0; c < 13; ++c)
+		{
+			for(int c = 0; c < 13; ++c)
+			{
+				for(int i = 0; i < bufferSize; ++i)
+				{
+					samples[c][i] = 42;
+				}
+			}
+
+			channels.push_back(
+				{
+					c, // channel
+					samples[c], // samples
+					bufferSize, // max_num_samples
+					&ready[c] // ready
+				}
+			);
+		}
+
+		for(size_t offset = 0; offset < file.getSize(); offset += bufferSize)
+		{
+			for(size_t c = 0; c < 13; ++c)
+			{
+				ready[c] = false;
+			}
+
+			size_t readSize = file.getSize() - offset;
+			if(readSize > bufferSize)
+			{
+				readSize = bufferSize;
+			}
+			else
+			{
+				printf("Last read: %d samples\n", readSize);
+			}
+
+			file.readChunk(channels, offset, readSize);
+
+			for(size_t c = 0; c < 13; ++c)
+			{
+				CPPUNIT_ASSERT_EQUAL(true, ready[c]?true:false);
+			}
+
+			sample_t diff[13] = {0.0};
+			for(int c = 0; c < 13; ++c)
+			{
+				for(int i = 0; i < readSize; ++i)
+				{
+					diff[c] += abs(refFile[c]->data[i + offset] - samples[c][i]);
+				}
+			}
+
+			for(int c = 0; c < 13; ++c)
+			{
+				CPPUNIT_ASSERT_EQUAL((sample_t)0.0, diff[c]);
+			}
+		}
+
+		for(size_t c = 0; c < 13; ++c)
+		{
+			delete refFile[c];
+		}
+	}
+
+	void readTest()
+	{
+		// Exhaustive test for 1...64
+		for(size_t bufferSize = 1; bufferSize < 64; ++bufferSize)
+		{
+			readTestHelper(bufferSize);
+		}
+
+		// Binary test for 64 .. 4096
+		for(size_t bufferSize = 64; bufferSize < 4096; bufferSize *= 2)
+		{
+			readTestHelper(bufferSize);
+		}
+
+		// And some sporadic tests for some "wierd" sizes.
+		for(size_t bufferSize = 65; bufferSize < 4096; bufferSize *= 1.1)
+		{
+			readTestHelper(bufferSize);
+		}
+	}
+
+};
+
+// Registers the fixture into the 'registry'
+CPPUNIT_TEST_SUITE_REGISTRATION(AudioCacheFileTest);