foysavas · March 18, 2010 21:13 · Mar 18, 2010 · Mar 18, 2010
diff --git a/console b/console
@@ -0,0 +1,10 @@
+> ruby -rmath_functions.rb -e "puts MathFunctions.factorial(2)"
+2
+
+> ruby --test -rmath_functions.rb
+
+.
+
+Finished in 1.000706 seconds.
+
+1 tests, 2 assertions, 0 failures, 0 errors
diff --git a/inline_test b/inline_test
@@ -1,26 +0,0 @@
-module MathFunctions
-  include InlineTest
-
-  def factorial(n)
-    (1..n).inject(1) { |acc, x| acc * x}
-  end
-
-  unit_test do
-    assert factorial(6) == 720
-    assert factorial(5) == 120
-  end
-end
-
-module InlineTest
-  def env_is_testy?
-    true
-  end
-  if env_is_testy?
-    def unit_test(name, &block)
-      block[]
-    end
-  else
-    def unit_test(*args, &block)
-    end
-  end
-end

diff --git a/math_functions.rb b/math_functions.rb
@@ -0,0 +1,12 @@
+module MathFunctions
+  def self.factorial(n)
+    (1..n).inject(1) { |acc, x| acc * x}
+  end
+end
+
+=begin :unittest
+
+assert MathFunctions.factorial(6) == 720
+assert MathFunctions.factorial(5) == 120
+
+=end
diff --git a/inline_test b/inline_test
@@ -0,0 +1,26 @@
+module MathFunctions
+  include InlineTest
+
+  def factorial(n)
+    (1..n).inject(1) { |acc, x| acc * x}
+  end
+
+  unit_test do
+    assert factorial(6) == 720
+    assert factorial(5) == 120
+  end
+end
+
+module InlineTest
+  def env_is_testy?
+    true
+  end
+  if env_is_testy?
+    def unit_test(name, &block)
+      block[]
+    end
+  else
+    def unit_test(*args, &block)
+    end
+  end
+end