Describe(christmas_tree_tests)
{
	It(test1){Assert::That(tree(1), Equals(std::vector<std::string>({"#"})));}
	
	It(test2) {
		Assert::That(tree(2), Equals(std::vector<std::string>({
		" # ", 
		"###"
		})));
	}
	
	It(test3) {
		Assert::That(tree(5), Equals(std::vector<std::string>({
		"    #    ",
		"   ###   ", 
		"  #####  ", 
		" ####### ", 
		"#########"
		})));
	}
	
	It(should_work_for_a_tree_of_height_zero){Assert::That(tree(0), Equals(std::vector<std::string>({})));} 
};