Add a bunch of tests for Vector3

test/test_basics.cc

@@ -10,11 +10,149 @@
 #include "basics.h"
 
 
-TEST(Vector3Test, OperatorAdd)
+class Vector3Test
+    : public ::testing::Test
 {
-    Vector3 v1(3, 2, 1), v2(4, 5, 6);
-    Vector3 sum = v1 + v2;
-    EXPECT_EQ(7, sum.x);
-    EXPECT_EQ(7, sum.y);
-    EXPECT_EQ(7, sum.z);
+public:
+    virtual void SetUp();
+
+protected:
+    Vector3 v1, v2;
+};
+
+
+void
+Vector3Test::SetUp()
+{
+    v1 = Vector3(1, 3, 5);
+    v2 = Vector3(7, 13, 17);
+}
+
+
+TEST_F(Vector3Test, OperatorEq)
+{
+    v1 = v2;
+    EXPECT_EQ(v2, v1);
+}
+
+
+TEST_F(Vector3Test, OperatorMul)
+{
+    Vector3 out;
+
+    out = v1 * 5;
+    EXPECT_EQ(5, out.x);
+    EXPECT_EQ(15, out.y);
+    EXPECT_EQ(25, out.z);
+
+    out = v1 * -7;
+    EXPECT_EQ(-7, out.x);
+    EXPECT_EQ(-21, out.y);
+    EXPECT_EQ(-35, out.z);
+
+    out = v1;
+    out *= 5;
+    EXPECT_EQ(5, out.x);
+    EXPECT_EQ(15, out.y);
+    EXPECT_EQ(25, out.z);
+
+    out = v1;
+    out *= -7;
+    EXPECT_EQ(-7, out.x);
+    EXPECT_EQ(-21, out.y);
+    EXPECT_EQ(-35, out.z);
+}
+
+
+// TODO: Test divison.
+#if 0
+TEST_F(Vector3Test, OperatorDiv)
+{
+    Vector3 out;
+
+    out = v1 / 5.0;
+    EXPECT_EQ(1.0/5.0, out.x);
+    EXPECT_EQ(3.0/5.0, out.y);
+    EXPECT_EQ(5.0/5.0, out.z);
+
+    out = v1 / -7.0;
+    EXPECT_EQ(1.0/-7.0, out.x);
+    EXPECT_EQ(3.0/-7.0, out.y);
+    EXPECT_EQ(5.0/-7.0, out.z);
+
+    out = v1;
+    out /= 5.0;
+    EXPECT_EQ(1.0/5.0, out.x);
+    EXPECT_EQ(3.0/5.0, out.y);
+    EXPECT_EQ(5.0/5.0, out.z);
+
+    out = v1;
+    out /= -7.0;
+    EXPECT_EQ(1.0/-7.0, out.x);
+    EXPECT_EQ(3.0/-7.0, out.y);
+    EXPECT_EQ(5.0/-7.0, out.z);
+}
+#endif
+
+
+TEST_F(Vector3Test, OperatorAdd)
+{
+    Vector3 out;
+
+    out = v1 + v2;
+    EXPECT_EQ(8, out.x);
+    EXPECT_EQ(16, out.y);
+    EXPECT_EQ(22, out.z);
+
+    out = v1;
+    out += v2;
+    EXPECT_EQ(8, out.x);
+    EXPECT_EQ(16, out.y);
+    EXPECT_EQ(22, out.z);
+}
+
+
+TEST_F(Vector3Test, OperatorSub)
+{
+    Vector3 out;
+
+    out = v1 - v2;
+    EXPECT_EQ(-6, out.x);
+    EXPECT_EQ(-10, out.y);
+    EXPECT_EQ(-12, out.z);
+
+    v1 -= v2;
+    EXPECT_EQ(-6, v1.x);
+    EXPECT_EQ(-10, v1.y);
+    EXPECT_EQ(-12, v1.z);
+}
+
+
+TEST_F(Vector3Test, OperatorBoolEq)
+{
+    EXPECT_EQ(v1, v1);
+    EXPECT_EQ(v2, v2);
+}
+
+
+TEST_F(Vector3Test, OperatorBoolNe)
+{
+    EXPECT_NE(v1, v2);
+    EXPECT_NE(v2, v1);
+}
+
+
+TEST_F(Vector3Test, Length2)
+{
+    EXPECT_EQ(35.0, v1.length2());
+    EXPECT_EQ(507.0, v2.length2());
+}
+
+
+// TODO: Test length()
+
+
+TEST_F(Vector3Test, DotProduct)
+{
+    EXPECT_EQ(131.0, v1.dot(v2));
 }