I have to make a exception part on triangles now.
The exercise looks like this : [/code]
class AboutTriangleProject2 < EdgeCase::Koan
def test_illegal_triangles_throw_exceptions assert_raise(TriangleError) do triangle(0, 0, 0) end assert_raise(TriangleError) do triangle(3, 4, -5) end assert_raise(TriangleError) do triangle(1, 1, 3) end assert_raise(TriangleError) do triangle(2, 4, 2) end # HINT: for tips, see geometry - Ruby Koan 151 raising exceptions - Stack Overflow end end [/code]
So I looked at that page and come with this solution :
def triangle(a, b, c) raise TriangleError, "length cannnot be 0 or lesser" if (a <= 0) or (b <= 0) or (c <= 0); raise TriangleError, "length does not mach Pyschotorogas" if (a * a + b * b != c * c); return :equilateral if ((a == b) and (b == c)) return :isosceles if (((a == b) and (b != c)) or ((a != b) and (b == c)) or ((a == c) and (a != b))) return :scalene if ((a !=b) and (b != c)) end
But now I get a uninitialized constant TriangleError
What did I do wrong now ?