Added support for input type="image"

lib/webcat/driver/rack_test_driver.rb

@@ -37,7 +37,7 @@ class Webcat::Driver::RackTest
     def click
       if tag_name == 'a'
         session.visit(self[:href])
-      elsif tag_name == 'input' and type == 'submit'
+      elsif tag_name == 'input' and %w(submit image).include?(type)
         Form.new(session, form).submit(self)
       end
     end

lib/webcat/session.rb

@@ -68,7 +68,12 @@ private
   end
 
   def find_button(locator)
-    find_element("//input[@type='submit'][@id='#{locator}']", "//input[@type='submit'][@value='#{locator}']")
+    find_element(
+      "//input[@type='submit'][@id='#{locator}']",
+      "//input[@type='submit'][@value='#{locator}']",
+      "//input[@type='image'][@id='#{locator}']",
+      "//input[@type='image'][@value='#{locator}']"
+    )
   end
 
   def find_field(locator, *kinds)

spec/session_spec.rb

@@ -61,7 +61,7 @@ shared_examples_for "session" do
       @session.visit('/form')
     end
 
-    context "with value given" do
+    context "with value given on a submit button" do
       before do
         @session.click_button('awesome')
         @results = YAML.load(@session.body)
@@ -118,7 +118,7 @@ shared_examples_for "session" do
       end
     end
 
-    context "with id given" do
+    context "with id given on a submit button" do
       it "should submit the associated form" do
         @session.click_button('awe123')
         results = YAML.load(@session.body)
@@ -126,6 +126,22 @@ shared_examples_for "session" do
       end
     end
 
+    context "with value given on an image button" do
+      it "should submit the associated form" do
+        @session.click_button('okay')
+        results = YAML.load(@session.body)
+        results['first_name'].should == 'John'
+      end
+    end
+
+    context "with id given on an image button" do
+      it "should submit the associated form" do
+        @session.click_button('okay556')
+        results = YAML.load(@session.body)
+        results['first_name'].should == 'John'
+      end
+    end
+
     it "should follow redirects" do
       @session.click_button('Go FAR')
       @session.body.should include('You landed')

spec/views/form.erb

@@ -84,6 +84,7 @@
   <p>
     <input type="submit" name="form[awesome]" id="awe123" value="awesome"/>
     <input type="submit" name="form[crappy]" id="crap321" value="crappy"/>
+    <input type="image" name="form[okay]" id="okay556" value="okay"/>
   </p>
 </form>