diff --git a/raytracing/src/canvas.cpp b/raytracing/src/canvas.cpp
index 2c9caf1..77a0d65 100644
--- a/raytracing/src/canvas.cpp
+++ b/raytracing/src/canvas.cpp
@@ -38,12 +38,6 @@ using namespace Raytracer;
 
 /* ------------------------------------------------------------------------- */
 
-Canvas::Canvas(void) : m_width(0), m_height(0)
-{
-}
-
-/* ------------------------------------------------------------------------- */
-
 Canvas::Canvas(uint16_t a_width, uint16_t a_height) : m_width(a_width), m_height(a_height)
 {
     m_pixels = std::vector<std::vector<Color>>(m_width, std::vector<Color>(m_height));
diff --git a/raytracing/src/canvas.h b/raytracing/src/canvas.h
index 9bb18cd..743824c 100644
--- a/raytracing/src/canvas.h
+++ b/raytracing/src/canvas.h
@@ -42,7 +42,6 @@ namespace Raytracer
     class Canvas
     {
     public:
-        Canvas(void);
         Canvas(uint16_t a_width, uint16_t a_height);
 
         uint16_t width(void) const;
diff --git a/raytracing/src/intersections.cpp b/raytracing/src/intersections.cpp
index 27c274e..80f96e5 100644
--- a/raytracing/src/intersections.cpp
+++ b/raytracing/src/intersections.cpp
@@ -45,7 +45,8 @@ Intersections::Intersections(const std::initializer_list<Intersection> &a_list)
 
 Intersections::Intersections(Intersections &an_other)
 {
-    std::copy(an_other.m_data.begin(), an_other.m_data.end(), m_data.begin());
+    m_data.reserve(an_other.m_data.size());
+    m_data.assign(an_other.m_data.begin(), an_other.m_data.end());
 }
 
 /* ------------------------------------------------------------------------- */
@@ -64,7 +65,8 @@ const Intersections &Intersections::operator=(const Intersections &an_other)
         return *this;
     }
 
-    std::copy(an_other.m_data.begin(), an_other.m_data.end(), m_data.begin());
+    m_data.reserve(an_other.m_data.size());
+    m_data.assign(an_other.m_data.begin(), an_other.m_data.end());
 
     return *this;
 }
diff --git a/tests/05_rays.cpp b/tests/05_rays.cpp
index acf785a..ed0a0b9 100644
--- a/tests/05_rays.cpp
+++ b/tests/05_rays.cpp
@@ -379,6 +379,39 @@ SCENARIO("Aggregating intersections", "[features/intersections.feature]")
 
 /* ------------------------------------------------------------------------- */
 
+SCENARIO("Operations with intersections", "[features/intersections.feature]")
+{
+    GIVEN("xs <- intersections({})")
+    {
+        Intersections xs1({});
+        AND_GIVEN("s <- sphere()")
+        {
+            Sphere s;
+            Intersection i1(1, s);
+            AND_GIVEN("xs2 <- intersections({i1})")
+            {
+                Intersections xs2({i1});
+                WHEN("xs1 <- xs2")
+                {
+                    // xs2 = xs2;
+                    xs1 = xs2;
+                    THEN("xs1.count = 1")
+                    {
+                        REQUIRE(xs1.count() == 1);
+                    }
+                    Intersections xs3 = xs1;
+                    THEN("xs3.count = 1")
+                    {
+                        REQUIRE(xs3.count() == 1);
+                    }
+                }
+            }
+        }
+    }
+}
+
+/* ------------------------------------------------------------------------- */
+
 SCENARIO("Intersect sets the object on the intersection", "[features/spheres.feature]")
 {
     GIVEN("r <- ray(point(0, 0, 5), vector(0, 0, 1))")