Update tests to work for ruby 1.9

spec/file_info_spec.rb

@@ -1,44 +1,37 @@
 RSpec.describe(Jekyll::Compose::FileInfo) do
+  let(:open_and_closing_tag) { "---\n" }
+  let(:layout_content) { "post\n" }
+
   describe '#content' do
     context 'with a title of only words' do
-      let(:expected_result) {<<-CONTENT.gsub(/^\s+/, '')
-          ---
-          layout: post
-          title: A test arg parser
-          ---
-        CONTENT
-      }
-
-      let(:parsed_args) { Jekyll::Compose::ArgParser.new(
+      let(:expected_title) { "A test arg parser\n" }
+      subject { described_class.new Jekyll::Compose::ArgParser.new(
           ['A test arg parser'],
           {}
         )
       }
 
       it 'does not wrap the title in quotes' do
-        file_info = described_class.new parsed_args
-        expect(file_info.content).to eq(expected_result)
+        expect(subject.content).to start_with(open_and_closing_tag)
+        expect(subject.content).to end_with(open_and_closing_tag)
+        expect(subject.content).to match(layout_content)
+        expect(subject.content).to match(expected_title)
       end
     end
 
     context 'with a title that includes a colon' do
-      let(:expected_result) {<<-CONTENT.gsub(/^\s+/, '')
-          ---
-          layout: post
-          title: 'A test: arg parser'
-          ---
-        CONTENT
-      }
-
-      let(:parsed_args) { Jekyll::Compose::ArgParser.new(
+      let(:expected_title) { "'A test: arg parser'\n" }
+      subject { described_class.new Jekyll::Compose::ArgParser.new(
           ['A test: arg parser'],
           {}
         )
       }
 
       it 'does wrap the title in quotes' do
-        file_info = described_class.new parsed_args
-        expect(file_info.content).to eq(expected_result)
+        expect(subject.content).to start_with(open_and_closing_tag)
+        expect(subject.content).to end_with(open_and_closing_tag)
+        expect(subject.content).to match(layout_content)
+        expect(subject.content).to match(expected_title)
       end
     end
   end