Update test samples

Author: mdmintz

examples/boilerplates/samples/bing_objects.py

@@ -13,4 +13,5 @@ class HomePage(object):
 
 class ResultsPage(object):
     google_logo = 'img[alt="Google"]'
+    images_link = 'link=Images'
     search_results = 'div#center_col'

examples/boilerplates/samples/bing_test.py

@@ -16,6 +16,4 @@ def test_google_dot_com(self):
         self.assert_element(HomePage.feeling_lucky_button)
         self.click(HomePage.search_button)
         self.assert_text('github.com', ResultsPage.search_results)
-        self.click_link_text('Images')
-        source = self.get_page_source()
-        self.assert_true("Image result for github" in source)
+        self.assert_element(ResultsPage.images_link)