public void WhenGenericTypesMatchExistingIntersector_ThenReturnTheExpectedIntersector()
{
// Arrange
var expectedIntersector1 = BuildMockIntersector <Cube, Cube>();
var expectedIntersector2 = BuildMockIntersector <Cube, Cylinder>();
var expectedIntersector3 = BuildMockIntersector <Cylinder, Sphere>();
var expectedIntersector4 = BuildMockIntersector <Sphere, Sphere>();
IIntersector[] intersectors =
{
expectedIntersector1,
expectedIntersector2,
expectedIntersector3,
expectedIntersector4
};
var registry = new IntersectorRegistry(intersectors);
// Act
var intersector1 = registry.GetIntersector <Cube, Cube>();
var intersector2 = registry.GetIntersector <Cube, Cylinder>();
var intersector3 = registry.GetIntersector <Cylinder, Sphere>();
var intersector4 = registry.GetIntersector <Sphere, Sphere>();
// Assert
intersector1.Should().BeSameAs(expectedIntersector1, "Intersectors should be the same instance.");
intersector2.Should().BeSameAs(expectedIntersector2, "Intersectors should be the same instance.");
intersector3.Should().BeSameAs(expectedIntersector3, "Intersectors should be the same instance.");
intersector4.Should().BeSameAs(expectedIntersector4, "Intersectors should be the same instance.");
}
public void WhenGenericTypesDoNotMatchExistingIntersector_ThenReturnNull()
{
// Arrange
var intersector1 = BuildMockIntersector <Cube, Cube>();
IIntersector[] intersectors =
{
intersector1
};
var registry = new IntersectorRegistry(intersectors);
// Act
var result = registry.GetIntersector <Cylinder, Sphere>();
// Assert
result.Should().BeNull("Null should be returned when a matching intersector instance is not found.");
}
