Merge pull request #6 from pocke/update-rspec-3

Update RSpec version to 3

.rspec

@@ -1,2 +1,2 @@
---format nested
+--format documentation
 --color

spec/code_analyzer/checker_spec.rb

@@ -29,12 +29,12 @@ module CodeAnalyzer
     context "#parse_file?" do
       it "should return true if node_file matches pattern" do
         allow(checker).to receive(:interesting_files).and_return([/spec\/.*\.rb/, /lib\/.*\.rb/])
-        expect(checker.parse_file?("lib/code_analyzer.rb")).to be_true
+        expect(checker.parse_file?("lib/code_analyzer.rb")).to be true
       end
 
       it "should return false if node_file doesn't match pattern" do
         allow(checker).to receive(:interesting_files).and_return([/spec\/.*\.rb/])
-        expect(checker.parse_file?("lib/code_analyzer.rb")).to be_false
+        expect(checker.parse_file?("lib/code_analyzer.rb")).to be false
       end
     end
 

spec/code_analyzer/checking_visitor/plain_spec.rb

@@ -11,7 +11,7 @@ module CodeAnalyzer::CheckingVisitor
       content = "content"
       expect(checker1).to receive(:parse_file?).and_return(false)
       expect(checker2).to receive(:parse_file?).and_return(true)
-      checker1.should_not_receive(:check).with(filename, content)
+      expect(checker1).not_to receive(:check).with(filename, content)
       expect(checker2).to receive(:check).with(filename, content)
 
       visitor.check(filename, content)