[FEAT] Add Extra Tests to update code coverage of current code.

.vscode/settings.json

@@ -92,5 +92,10 @@
                 }
             }
         }
+    ],
+    "gcovViewer.buildDirectories": [
+        "/home/jbnadal/sources/jb/raytracing_challenge/build/raytracing/CMakeFiles/raytracing.dir/src",
+        "/home/jbnadal/sources/jb/raytracing_challenge/build/apps/CMakeFiles/chapter_05.dir",
+        "/home/jbnadal/sources/jb/raytracing_challenge/build/tests/CMakeFiles/raytracing_test.dir"
     ]
 }

tests/05_rays.cpp

@@ -276,6 +276,75 @@ SCENARIO("An intersection encapsulates t and object", "[features/intersections.f
 
 /* ------------------------------------------------------------------------- */
 
+SCENARIO("An intersection could be affected", "[features/intersections.feature]")
+{
+    GIVEN("s <- sphere()")
+    {
+        Sphere s;
+        AND_GIVEN("i1 <- intersection(3.5,s) and i2 <- intersection()")
+        {
+            Intersection i1(3.5, s);
+            Intersection i2;
+
+            WHEN("i2 <- i1")
+            {
+                i1 = i1;
+                i2 = i1;
+                THEN("i2.t = 3.5")
+                {
+                    REQUIRE(i2.distance_t() == 3.5);
+                }
+                AND_THEN("i2.object = s")
+                {
+                    REQUIRE(i2.object() == s);
+                }
+            }
+        }
+    }
+}
+
+/* ------------------------------------------------------------------------- */
+
+SCENARIO("Intersection could be compared", "[features/intersections.feature]")
+{
+    GIVEN("s <- sphere()")
+    {
+        Sphere s;
+        AND_GIVEN("i1 <- intersection(3,s) and i2 <- intersection(4,s)")
+        {
+            Intersection i1(3.0, s);
+            Intersection i2(4.0, s);
+
+            THEN("i2 > i1")
+            {
+                REQUIRE(i2 > i1);
+            }
+            AND_THEN("i1 < i2")
+            {
+                REQUIRE(i1 < i2);
+            }
+            AND_THEN("i2 > 2")
+            {
+                REQUIRE(i2 > 2.0);
+            }
+            AND_THEN("i2 >= 4")
+            {
+                REQUIRE(i2 >= 4.0);
+            }
+            AND_THEN("i2 < 6")
+            {
+                REQUIRE(i2 < 6.0);
+            }
+            AND_THEN("i2 <= 4")
+            {
+                REQUIRE(i2 <= 4.0);
+            }
+        }
+    }
+}
+
+/* ------------------------------------------------------------------------- */
+
 SCENARIO("Aggregating intersections", "[features/intersections.feature]")
 {
     GIVEN("s <- sphere()")
@@ -420,6 +489,7 @@ SCENARIO("The hit, when all intersections have negative t", "[features/intersect
                         THEN("i is nothing")
                         {
                             REQUIRE(i.is_nothing());
+                            REQUIRE(!i.is_defined());
                         }
                     }
                 }