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-rw-r--r--test/test_mixramp.cxx82
1 files changed, 82 insertions, 0 deletions
diff --git a/test/test_mixramp.cxx b/test/test_mixramp.cxx
new file mode 100644
index 000000000..83d266d48
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+++ b/test/test_mixramp.cxx
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+/*
+ * Unit tests for mixramp_interpolate()
+ */
+
+#include "config.h"
+#include "CrossFade.cxx"
+
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <cppunit/ui/text/TestRunner.h>
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <string.h>
+
+class MixRampTest : public CppUnit::TestFixture {
+ CPPUNIT_TEST_SUITE(MixRampTest);
+ CPPUNIT_TEST(TestInterpolate);
+ CPPUNIT_TEST_SUITE_END();
+
+public:
+ void TestInterpolate() {
+ const char *input = "1.0 0.00;3.0 0.10;6.0 2.50;";
+
+ char *foo = strdup(input);
+ CPPUNIT_ASSERT(!std::isnan(mixramp_interpolate(foo, 0)));
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_EQUAL(float(0),
+ mixramp_interpolate(foo, 1));
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_EQUAL(float(0.1),
+ mixramp_interpolate(foo, 3));
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_EQUAL(float(2.5),
+ mixramp_interpolate(foo, 6));
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT(!std::isnan(mixramp_interpolate(foo, 3)));
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(float(0.05),
+ mixramp_interpolate(foo, 2),
+ 0.05);
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(float(1.3),
+ mixramp_interpolate(foo, 4.5),
+ 0.05);
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(float(0.9),
+ mixramp_interpolate(foo, 4),
+ 0.05);
+ free(foo);
+
+ foo = strdup(input);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(float(1.7),
+ mixramp_interpolate(foo, 5),
+ 0.05);
+ free(foo);
+ }
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(MixRampTest);
+
+int
+main(gcc_unused int argc, gcc_unused char **argv)
+{
+ CppUnit::TextUi::TestRunner runner;
+ auto &registry = CppUnit::TestFactoryRegistry::getRegistry();
+ runner.addTest(registry.makeTest());
+ return runner.run() ? EXIT_SUCCESS : EXIT_FAILURE;
+}