Test for non-default constructor in bases.

tests/run/cpp_classes.pyx

@@ -7,7 +7,10 @@ cdef extern from "shapes.h" namespace "shapes":
     cdef cppclass Shape:
         float area()
 
-    cdef cppclass Circle(Shape):
+    cdef cppclass Ellipse(Shape):
+        Ellipse(int a, int b) except +
+
+    cdef cppclass Circle(Ellipse):
         int radius
         Circle(int r) except +
 

tests/run/shapes.h

@@ -41,10 +41,16 @@ namespace shapes {
         int side;
     };
     
-    class Circle : public Shape {
+    class Ellipse : public Shape {
     public:
-        Circle(int radius) { this->radius = radius; }
-        float area() const { return 3.1415926535897931f * radius; }
+        Ellipse(int a, int b) { this->a = a; this->b = b; }
+        float area() const { return 3.1415926535897931f * a * b; }
+        int a, b;
+    };
+    
+    class Circle : public Ellipse {
+    public:
+        Circle(int radius) : Ellipse(radius, radius) { this->radius = radius; }
         int radius;
     };