Add synchronization for rendering to studio xblock tests

common/test/acceptance/pages/studio/container.py

@@ -3,7 +3,7 @@ Container page in Studio
 """
 
 from bok_choy.page_object import PageObject
-
+from bok_choy.promise import Promise
 from . import BASE_URL
 
 
@@ -22,11 +22,18 @@ class ContainerPage(PageObject):
         return "{}/container/{}".format(BASE_URL, self.unit_locator)
 
     def is_browser_on_page(self):
-        # Wait until all components have been loaded
+
+        def _is_finished_loading():
+            # Wait until all components have been loaded
+            is_done = len(self.q(css=XBlockWrapper.BODY_SELECTOR).results) == len(
+                self.q(css='{} .xblock'.format(XBlockWrapper.BODY_SELECTOR)).results)
+            return (is_done, is_done)
+
+        # First make sure that an element with the view-container class is present on the page,
+        # and then wait to make sure that the xblocks are all there.
         return (
             self.q(css='body.view-container').present and
-            len(self.q(css=XBlockWrapper.BODY_SELECTOR).results) == len(
-                self.q(css='{} .xblock'.format(XBlockWrapper.BODY_SELECTOR)).results)
+            Promise(_is_finished_loading, 'Finished rendering the xblock wrappers.').fulfill()
         )
 
     @property

common/test/acceptance/pages/studio/unit.py

@@ -3,7 +3,7 @@ Unit page in Studio
 """
 
 from bok_choy.page_object import PageObject
-from bok_choy.promise import EmptyPromise
+from bok_choy.promise import EmptyPromise, Promise
 
 from . import BASE_URL
 from .container import ContainerPage
@@ -24,12 +24,19 @@ class UnitPage(PageObject):
         return "{}/unit/{}".format(BASE_URL, self.unit_locator)
 
     def is_browser_on_page(self):
-        # Wait until all components have been loaded
-        number_of_leaf_xblocks = len(self.q(css='{} .xblock-student_view'.format(Component.BODY_SELECTOR)).results)
-        number_of_container_xblocks = len(self.q(css='{} .wrapper-xblock'.format(Component.BODY_SELECTOR)).results)
+
+        def _is_finished_loading():
+            # Wait until all components have been loaded
+            number_of_leaf_xblocks = len(self.q(css='{} .xblock-student_view'.format(Component.BODY_SELECTOR)).results)
+            number_of_container_xblocks = len(self.q(css='{} .wrapper-xblock'.format(Component.BODY_SELECTOR)).results)
+            is_done = len(self.q(css=Component.BODY_SELECTOR).results) == number_of_leaf_xblocks + number_of_container_xblocks
+            return (is_done, is_done)
+
+        # First make sure that an element with the view-unit class is present on the page,
+        # and then wait to make sure that the xblocks are all there
         return (
             self.q(css='body.view-unit').present and
-            len(self.q(css=Component.BODY_SELECTOR).results) == number_of_leaf_xblocks + number_of_container_xblocks
+            Promise(_is_finished_loading, 'Finished rendering the xblocks in the unit.').fulfill()
         )
 
     @property

common/test/acceptance/pages/xblock/acid.py

@@ -3,7 +3,7 @@ PageObjects related to the AcidBlock
 """
 
 from bok_choy.page_object import PageObject
-from bok_choy.promise import EmptyPromise, BrokenPromise
+from bok_choy.promise import EmptyPromise, BrokenPromise, Promise
 
 class AcidView(PageObject):
     """
@@ -24,9 +24,17 @@ class AcidView(PageObject):
         self.context_selector = context_selector
 
     def is_browser_on_page(self):
+
+        def _is_finished_loading():
+            # Wait for the xblock javascript to finish initializing
+            is_done = self.browser.execute_script("return $({!r}).data('initialized')".format(self.context_selector))
+            return (is_done, is_done)
+
+        # First make sure that an element with the view-container class is present on the page,
+        # and then wait to make sure that the xblock has finished initializing.
         return (
             self.q(css='{} .acid-block'.format(self.context_selector)).present and
-            self.browser.execute_script("return $({!r}).data('initialized')".format(self.context_selector))
+            Promise(_is_finished_loading, 'Finished initializing the xblock.').fulfill()
         )
 
     def test_passed(self, test_selector):

common/test/acceptance/tests/test_studio.py

@@ -25,7 +25,7 @@ from ..pages.studio.textbooks import TextbooksPage
 from ..pages.xblock.acid import AcidView
 from ..fixtures.course import CourseFixture, XBlockFixtureDesc
 
-from .helpers import UniqueCourseTest, load_data_str
+from .helpers import UniqueCourseTest
 
 
 class LoggedOutTest(WebAppTest):
@@ -170,7 +170,6 @@ class XBlockAcidBase(WebAppTest):
         acid_block = AcidView(self.browser, unit.components[0].preview_selector)
         self.validate_acid_block_preview(acid_block)
 
-    @skip('Temporarily diabling because it is failing in Jenkins. TE-369')
     def test_acid_block_editor(self):
         """
         Verify that all expected acid block tests pass in studio editor
@@ -189,7 +188,6 @@ class XBlockAcidBase(WebAppTest):
         self.assertTrue(acid_block.scope_passed('settings'))
 
 
-@skip('Temporarily diabling because it is failing in Jenkins. TE-369')
 class XBlockAcidNoChildTest(XBlockAcidBase):
     """
     Tests of an AcidBlock with no children
@@ -226,7 +224,6 @@ class XBlockAcidParentBase(XBlockAcidBase):
         super(XBlockAcidParentBase, self).validate_acid_block_preview(acid_block)
         self.assertTrue(acid_block.child_tests_passed)
 
-    @skip('Intermittently failing, needs a better page definition that waits until the unit is fully rendered')
     def test_acid_block_preview(self):
         """
         Verify that all expected acid block tests pass in studio preview