[FEAT] Add test and Tuplus object

tests/chapitre01_tuples.cpp

@@ -17,7 +17,7 @@
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  * MA 02110-1301 USA
- * 
+ *
  * @Author:  NADAL Jean-Baptiste
  * @Date: 07/02/2021
  *
@@ -30,10 +30,13 @@
 
 #include <gtest/gtest.h>
 
-// Demonstrate some basic assertions.
-TEST(HelloTest, BasicAssertions) {
-  // Expect two strings not to be equal.
-  EXPECT_STRNE("hello", "world");
-  // Expect equality.
-  EXPECT_EQ(7 * 6, 42);
+#include "tuple.h"
+
+TEST(RaytracerTuple, CreateBasicTuple)
+{
+  Raytracer::Tuple t(4.3, -4.2, 3.1, 1.0);
+  EXPECT_FLOAT_EQ(t.x(), 4.3);
+  EXPECT_FLOAT_EQ(t.y(), -4.2);
+  EXPECT_FLOAT_EQ(t.z(), 3.1);
+  EXPECT_FLOAT_EQ(t.w(), 1.0);
 }