Add coverage for cohort view's `showSection` link

TNL-550

common/test/acceptance/pages/lms/instructor_dashboard.py

@@ -146,3 +146,19 @@ class MembershipPage(PageObject):
         The first entry in the array is the title. Any further entries are the details.
         """
         return self._get_cohort_messages("errors")
+
+    def select_data_download(self):
+        """
+        Click on the link to the Data Download Page.
+        """
+        self.q(css="a.link-cross-reference[data-section=data_download]").first.click()
+
+
+class DataDownloadPage(PageObject):
+    """
+    Data Download section of the Instructor dashboard.
+    """
+    url = None
+
+    def is_browser_on_page(self):
+        return self.q(css='a[data-section=data_download].active-section').present

common/test/acceptance/tests/discussion/test_cohort_management.py

@@ -12,7 +12,7 @@ from .helpers import CohortTestMixin
 from ..helpers import UniqueCourseTest
 from ...fixtures.course import CourseFixture
 from ...pages.lms.auto_auth import AutoAuthPage
-from ...pages.lms.instructor_dashboard import InstructorDashboardPage
+from ...pages.lms.instructor_dashboard import InstructorDashboardPage, DataDownloadPage
 from ...pages.studio.settings_advanced import AdvancedSettingsPage
 
 import uuid
@@ -242,3 +242,16 @@ class CohortConfigurationTest(UniqueCourseTest, CohortTestMixin):
             }).count(),
             1
         )
+
+    def test_link_to_data_download(self):
+        """
+        Scenario: a link is present from the cohort configuration in
+        the instructor dashboard to the Data Download section.
+
+        Given I have a course with a cohort defined
+        When I view the cohort in the LMS instructor dashboard
+        There is a link to take me to the Data Download section of the Instructor Dashboard.
+        """
+        self.membership_page.select_data_download()
+        data_download_page = DataDownloadPage(self.browser)
+        data_download_page.wait_for_page()