New ImageCache class for reusing Image resources.

1 files changed, 98 insertions, 0 deletions

diff --git a/test/imagecachetest.cc b/test/imagecachetest.cc
new file mode 100644
index 0000000..2a5b6ed
--- /dev/null
+++ b/test/imagecachetest.cc
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            imagecachetest.cc
+ *
+ *  Thu Jun  2 18:54:31 CEST 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 Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser 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 <cassert>
+
+#include <imagecache.h>
+#include <image.h>
+
+class TestableImageCache
+	: public GUI::ImageCache
+{
+public:
+	std::size_t count(const std::string& filename)
+	{
+		if(imageCache.find(filename) == imageCache.end())
+		{
+			return 0;
+		}
+
+		auto it = imageCache.find(filename);
+		auto& val = it->second;
+		return val.first;
+	}
+};
+
+class ImageCacheTest
+	: public CppUnit::TestFixture
+{
+	CPPUNIT_TEST_SUITE(ImageCacheTest);
+	CPPUNIT_TEST(refCountTest);
+	CPPUNIT_TEST_SUITE_END();
+
+public:
+	void setUp() {}
+	void tearDown() {}
+
+	void refCountTest()
+	{
+		TestableImageCache imageCache;
+		CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 0u);
+		CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 0u);
+
+		{
+			auto image1{imageCache.getImage("foo")};
+			(void)image1;
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 1u);
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 0u);
+
+			auto image2 = imageCache.getImage("bar");
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 1u);
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 1u);
+
+			auto image3 = imageCache.getImage("foo");
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 2u);
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 1u);
+
+			{
+				auto image4 = imageCache.getImage("foo");
+				CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 3u);
+				CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 1u);
+			}
+
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 2u);
+			CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 1u);
+		}
+
+		CPPUNIT_ASSERT_EQUAL(imageCache.count("foo"), 0u);
+		CPPUNIT_ASSERT_EQUAL(imageCache.count("bar"), 0u);
+	}
+};
+
+// Registers the fixture into the 'registry'
+CPPUNIT_TEST_SUITE_REGISTRATION(ImageCacheTest);