tests: functional: Introduce step def. to check if app is enabled

- Useful in case the site can't be checked and daemon is not available.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>

plinth/tests/functional/__init__.py

@@ -379,6 +379,13 @@ def app_disable(browser, app_name):
     _change_app_status(browser, app_name, 'disabled')
 
 
+def app_is_enabled(browser, app_name):
+    """Return whether the app is enabled."""
+    nav_to_module(browser, app_name)
+    should_enable_field = browser.find_by_id('id_should_enable')
+    return should_enable_field.value == 'False'
+
+
 def app_can_be_disabled(browser, app_name):
     """Return whether the application can be disabled."""
     nav_to_module(browser, app_name)

plinth/tests/functional/step_definitions.py

@@ -58,6 +58,13 @@ def app_can_be_disabled(session_browser, app_name):
         pytest.skip('network time application can\'t be disabled')
 
 
+@then(parsers.parse('the {app_name:w} application is {enabled:w}'))
+def app_assert_is_enabled(session_browser, app_name, enabled):
+    assert enabled in ('enabled', 'disabled')
+    enabled = (enabled == 'enabled')
+    assert functional.app_is_enabled(session_browser, app_name) == enabled
+
+
 @then(parsers.parse('the {service_name:w} service should be running'))
 def service_should_be_running(session_browser, service_name):
     assert functional.eventually(functional.service_is_running,