Trying to fix coverage.

source/include/material.h

@@ -46,6 +46,7 @@ public:
                                                       double_equal(this->emissive, b.emissive) &&
                                                       double_equal(this->refractiveIndex, b.refractiveIndex) &&
                                                       (this->colour == b.colour); };
+    bool operator!=(const Material &b) const { return !(*this == b); };
 };
 
 

source/include/tuple.h

@@ -26,6 +26,7 @@ public:
                                                    double_equal(this->y, b.y) &&
                                                    double_equal(this->z, b.z) &&
                                                    double_equal(this->w, b.w); };
+    bool operator!=(const Tuple &b) const { return !(*this == b); };
 
     Tuple operator+(const Tuple &b) const { return Tuple(this->x + b.x, this->y + b.y,
                                                          this->z + b.z, this->w + b.w); };

source/math_helper.cpp

@@ -43,13 +43,8 @@ double min3(double a, double b, double c)
     if (b <= a)
     {
         if (c < b) return c;
-        return b;
     }
-    if (c <= a)
-    {
-        if (b < c) return b;
-    }
-    return c;
+    return b;
 }
 
 double max3(double a, double b, double c)
@@ -62,11 +57,6 @@ double max3(double a, double b, double c)
     if (b >= a)
     {
         if (c > b) return c;
-        return b;
     }
-    if (c >= a)
-    {
-        if (b > c) return b;
-    }
-    return c;
+    return b;
 }