catches spec failed exception again

lib/webrat/selenium/selenium_session.rb

@@ -150,8 +150,8 @@ module Webrat
         
         begin
           value = yield
-        rescue ::Selenium::CommandError, Webrat::WebratError
-          value = nil
+        rescue Exception => e
+          raise e unless yieldable_exceptions.include?(e.class)
         end
         
         return value if value
@@ -182,10 +182,19 @@ module Webrat
       else
         $browser.capture_screenshot(filename)
       end
-        open_in_browser(filename)
+      open_in_browser(filename)
+      
     end
     
-  protected
+    def yieldable_exceptions
+      return [::Selenium::CommandError, Webrat::WebratError] unless lib_defined?(::Spec::Expectations::ExpectationNotMetError)
+      [::Spec::Expectations::ExpectationNotMetError, ::Selenium::CommandError, Webrat::WebratError]
+    end
+    
+    protected
+    def lib_defined?(library)
+      defined?(library)
+    end
     
     def setup #:nodoc:
       Webrat::Selenium::SeleniumRCServer.boot
@@ -202,7 +211,7 @@ module Webrat
     
     def create_browser
       $browser = ::Selenium::Client::Driver.new(Webrat.configuration.selenium_server_address || "localhost",
-          Webrat.configuration.selenium_server_port, Webrat.configuration.selenium_browser_key, "http://#{Webrat.configuration.application_address}:#{Webrat.configuration.application_port}")
+      Webrat.configuration.selenium_server_port, Webrat.configuration.selenium_browser_key, "http://#{Webrat.configuration.application_address}:#{Webrat.configuration.application_port}")
       $browser.set_speed(0) unless Webrat.configuration.selenium_server_address
       
       at_exit do

spec/public/selenium/selenium_session_spec.rb

@@ -0,0 +1,33 @@
+require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')
+
+require "webrat/selenium/silence_stream"
+require "webrat/selenium/selenium_session"
+
+describe Webrat::SeleniumSession do
+  
+  before :each do
+    Webrat.configuration.mode = :selenium
+    @selenium = Webrat::SeleniumSession.new()
+  end
+  
+  it "should provide a list yieldable exceptions without spec if spec isn't defined" do
+    @selenium.should_receive(:lib_defined?).with(::Spec::Expectations::ExpectationNotMetError).and_return(false)
+    @selenium.yieldable_exceptions.should == [::Selenium::CommandError, Webrat::WebratError]
+  end
+  
+  it "should provide a list yieldable exceptions with rspec" do
+    @selenium.should_receive(:lib_defined?).with(::Spec::Expectations::ExpectationNotMetError).and_return(true)
+    @selenium.yieldable_exceptions.should == [::Spec::Expectations::ExpectationNotMetError, ::Selenium::CommandError, Webrat::WebratError]
+  end
+  
+  it "should handle yieldable exceptions in the wait_for" do
+    begin
+      @selenium.wait_for(:timeout => 0.25) do
+        raise Webrat::WebratError.new
+      end
+      fail("didn't throw")
+    rescue Webrat::TimeoutError
+    end
+  end
+  
+end