Fix error messages for has_text when argument is non-string

Follow-up fix to #762.

lib/capybara/rspec/matchers.rb

@@ -48,15 +48,15 @@ module Capybara
       end
 
       def failure_message_for_should
-        "expected there to be text #{text.inspect} in #{@actual.text.inspect}"
+        "expected there to be text #{format(text)} in #{format(@actual.text)}"
       end
 
       def failure_message_for_should_not
-        "expected there not to be text #{text.inspect} in #{@actual.text.inspect}"
+        "expected there not to be text #{format(text)} in #{format(@actual.text)}"
       end
 
       def description
-        "have text #{text.inspect}"
+        "have text #{format(text)}"
       end
 
       def wrap(actual)
@@ -66,6 +66,11 @@ module Capybara
           Capybara.string(actual.to_s)
         end
       end
+
+      def format(text)
+        text = Capybara::Helpers.normalize_whitespace(text) unless text.is_a? Regexp
+        text.inspect
+      end
     end
 
     def have_selector(*args)

spec/rspec/matchers_spec.rb

@@ -324,6 +324,12 @@ describe Capybara::RSpecMatchers do
             "<h1>Text</h1>".should have_text('No such Text')
           end.to raise_error(/expected there to be text "No such Text" in "Text"/)
         end
+
+        it "casts has_text? argument to string" do
+          expect do
+            "<h1>Text</h1>".should have_text(:cast_me)
+          end.to raise_error(/expected there to be text "cast_me" in "Text"/)
+        end
       end
 
       context "with should_not" do