Highlight its and expect from RSpec

Author: tpope

autoload/rails.vim

@@ -3520,8 +3520,8 @@ function! s:BufSyntax()
           syn keyword rubyRailsTestControllerMethod assert_response assert_redirected_to assert_template assert_recognizes assert_generates assert_routing assert_dom_equal assert_dom_not_equal assert_select assert_select_rjs assert_select_encoded assert_select_email assert_tag assert_no_tag
         endif
       elseif t=~ '^spec\>'
-        syn keyword rubyRailsTestMethod describe context it specify it_should_behave_like before after subject fixtures controller_name helper_name
-        syn keyword rubyRailsTestMethod violated pending mock mock_model stub_model
+        syn keyword rubyRailsTestMethod describe context it its specify it_should_behave_like before after subject fixtures controller_name helper_name
+        syn keyword rubyRailsTestMethod violated pending expect mock mock_model stub_model
         syn match rubyRailsTestMethod '\.\@<!\<stub\>!\@!'
         if t !~ '^spec-model\>'
           syn match   rubyRailsTestControllerMethod  '\.\@<!\<\%(get\|post\|put\|delete\|head\|process\|assigns\)\>'