Add configuration mechanism to turn off browser maximisation

Having the window maximise during a test run makes it difficult
to work with other windows, especially on a single-monitor
computer. This patch removes the maximisation call.

This patch also adds a "local" configuration mechanism to allow
developers to have local configuration of the integration test
environment without it affecting the git repository.

Change-Id: I8a7acbe40deaec5cca904526e3f3c8bc3357744c
Closes-Bug: 1540719

.gitignore

@@ -21,6 +21,7 @@ openstack_dashboard/local/local_settings.py
 openstack_dashboard/local/local_settings.diff
 openstack_dashboard/local/.secret_key_store
 openstack_dashboard/test/.secret_key_store
+openstack_dashboard/test/integration_tests/local-horizon.conf
 openstack_dashboard/wsgi/horizon.wsgi
 doc/build/
 doc/source/sourcecode

openstack_dashboard/test/integration_tests/README.rst

@@ -8,7 +8,8 @@ Running the integration tests
 
 #. Set up an OpenStack server
 
-#. Update the configuration file at `horizon.conf`
+#. Update the configuration file at `horizon.conf` or add overrides
+   to that file in `local-horizon.conf` which is ignored by git.
 
 #. Run the tests. ::
 

openstack_dashboard/test/integration_tests/config.py

@@ -78,6 +78,9 @@ SeleniumGroup = [
     cfg.StrOpt('screenshots_directory',
                default="integration_tests_screenshots",
                help="Output screenshot directory"),
+    cfg.BoolOpt('maximize_browser',
+                default=True,
+                help="Is the browser size maximized for each test?"),
 ]
 
 ScenarioGroup = [
@@ -122,7 +125,12 @@ def _get_config_files():
         'integration_tests')
     conf_file = os.environ.get('HORIZON_INTEGRATION_TESTS_CONFIG_FILE',
                                "%s/horizon.conf" % conf_dir)
-    return [conf_file]
+    config_files = [conf_file]
+    local_config = os.environ.get('HORIZON_INTEGRATION_TESTS_LOCAL_CONFIG',
+                                  "%s/local-horizon.conf" % conf_dir)
+    if os.path.isfile(local_config):
+        config_files.append(local_config)
+    return config_files
 
 
 def get_config():

openstack_dashboard/test/integration_tests/helpers.py

@@ -85,7 +85,8 @@ class BaseTestCase(testtools.TestCase):
             self.driver = webdriver.WebDriverWrapper(
                 desired_capabilities=desired_capabilities
             )
-            self.driver.maximize_window()
+            if self.CONFIG.selenium.maximize_browser:
+                self.driver.maximize_window()
             self.driver.implicitly_wait(self.CONFIG.selenium.implicit_wait)
             self.driver.set_page_load_timeout(
                 self.CONFIG.selenium.page_timeout)

openstack_dashboard/test/integration_tests/horizon.conf

@@ -29,6 +29,10 @@ implicit_wait=10
 # (integer value)
 explicit_wait=300
 
+# Maximize the browser window at the start of each test?
+# (boolean)
+maximize_browser=yes
+
 [image]
 # http accessible image (string value)
 http_image=http://download.cirros-cloud.net/0.3.1/cirros-0.3.1-x86_64-uec.tar.gz