Start quaternions.

test/quaternion_test.cc

@@ -0,0 +1,23 @@
+#include <gtest/gtest.h>
+#include <wrmath/geom/quaternion.h>
+
+using namespace std;
+using namespace wr;
+
+
+TEST(Quaterniond, Addition)
+{
+	geom::Quaterniond	p(geom::Vector3d {1.0, -2.0, 1.0}, 3.0);
+	geom::Quaterniond	q(geom::Vector3d {-1.0, 2.0, 3.0}, 2.0);
+	geom::Quaterniond	expected(geom::Vector3d{-9.0, -2.0, 11.0}, 8.0);
+
+	EXPECT_EQ(p * q, expected);
+}
+
+
+int
+main(int argc, char **argv)
+{
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}