Merge pull request #880 from edx/efischer/acceptance_mathjax_fix

Update mathjax test

test/acceptance/pages.py

@@ -102,7 +102,7 @@ class SubmissionPage(OpenAssessmentPage):
     def preview_latex(self):
         # Click 'Preview in LaTeX' button on the page.
         self.q(css="button#submission__preview").click()
-        self.wait_for_element_visibility("#preview_content .MathJax", "Verify Preview LaTeX expression")
+        self.wait_for_element_visibility("#preview_content .MathJax_CHTML", "Verify Preview LaTeX expression")
 
     def select_file(self, file_path_name):
         """

test/acceptance/tests.py

@@ -78,7 +78,7 @@ class OpenAssessmentTest(WebAppTest):
     }
 
     SUBMISSION = u"This is a test submission."
-    LATEX_SUBMISSION = u"[mathjaxinline]( \int_{0}^{1}xdx \)[/mathjaxinline]"
+    LATEX_SUBMISSION = u"[mathjaxinline]( \int_{0}^{1}xdx )[/mathjaxinline]"
     OPTIONS_SELECTED = [1, 2]
     STAFF_OVERRIDE_OPTIONS_SELECTED = [0, 1]
     STAFF_OVERRIDE_SCORE = 1