Extract part of #remove_past_results and add test

lib/gitnesse/wiki.rb

@@ -94,14 +94,24 @@ def remove_past_results
 
         if page
           content = page.raw_data
-          if content.match(/\u0060{3}gherkin.*\u0060{3}(.*)/m)[1]
-            [ "FAILED", "PASSED", "PENDING", "UNDEFINED" ].each do |type|
-             content.gsub!(/#{type}: .*\n/, '')
-            end
-            @wiki.update_page(page, page.name, :markdown, content, @commit_info)
-          end
+          content = strip_results(content)
+          @wiki.update_page(page, page.name, :markdown, content, @commit_info)
+        end
+      end
+    end
+
+    # Public: Strips old cucumber results
+    #
+    # content - the string to remote old results from
+    #
+    # Returns a string
+    def strip_results(content)
+      if content.match(/\u0060{3}gherkin.*\u0060{3}(.*)/m)[1]
+        [ "FAILED", "PASSED", "PENDING", "UNDEFINED" ].each do |type|
+          content.gsub!(/#{type}: .*\n*/, '')
         end
       end
+      content
     end
 
     # Public: Appends results of cucumber scenario to wiki

test/lib/gitnesse/strip_results_test.rb

@@ -0,0 +1,56 @@
+require_relative "../../test_helper"
+
+describe Gitnesse::Wiki do
+  describe "#strip_results" do
+    let(:wiki_page) do
+      <<-EOS
+```gherkin
+Feature: Division
+  In order to avoid silly mistakes
+  As a math idiot
+  I want to be told the quotient of 2 numbers
+
+  Scenario: Divide two numbers
+    Given I have entered 6 into the calculator
+    And I have entered 2 into the calculator
+    When I divide
+    Then the result should be 3
+```
+
+UNDEFINED: Divide two numbers
+
+PENDING: Divide two numbers
+
+FAILED: Divide two numbers
+
+PASSED: Divide two numbers
+EOS
+    end
+
+    let(:expected_result) do
+      <<-EOS
+```gherkin
+Feature: Division
+  In order to avoid silly mistakes
+  As a math idiot
+  I want to be told the quotient of 2 numbers
+
+  Scenario: Divide two numbers
+    Given I have entered 6 into the calculator
+    And I have entered 2 into the calculator
+    When I divide
+    Then the result should be 3
+```
+
+EOS
+    end
+
+    before do
+      Gollum::Wiki.expects(:new).returns(mock)
+    end
+
+    it "strips old results from the page" do
+      Gitnesse::Wiki.new(Dir.mktmpdir).strip_results(wiki_page).must_equal expected_result
+    end
+  end
+end