Added src directory

src/about_triangle_project_2.rb

@@ -0,0 +1,15 @@
+require 'edgecase'
+
+# You need to write the triangle method in the file 'triangle.rb'
+require 'triangle.rb'
+
+class AboutTriangleAssignment < EdgeCase::Koan
+  # The first assignment did not talk about how to handle errors.
+  # Let's handle that part now.
+  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(2, 4, 2) end 
+ end
+end
+