jayzes · March 7, 2014 00:01 · Mar 7, 2014
diff --git a/given.rb b/given.rb
@@ -0,0 +1,34 @@
+module GivenWhenThen
+
+    def Given(*args, &block)
+      if args.first.is_a?(Symbol)
+        let(*args, &block)
+      else
+        before(&block)
+      end
+    end
+
+    def Given!(*args, &block)
+      let!(*args, &block)
+    end
+
+    def When(*args, &block)
+      before(&block)
+    end
+
+    def Then(&block)
+      unless @queued_examples
+        @queued_examples = []
+        __examples = @queued_examples
+        it '' do
+          __examples.map { |e| self.instance_exec(&e) }
+        end
+      end
+      @queued_examples << block
+    end
+
+    alias_method :And, :Then
+
+end
+
+RSpec::Core::ExampleGroup.send :extend, GivenWhenThen