refactor selenium driver handling

tests/acceptance/browsers.py

@@ -0,0 +1,18 @@
+BROWSERSTACK_CONFIG = {
+    "win7_ie10": {
+        "browser": "IE",
+        "browser_version": "10.0",
+        "os": "Windows",
+        "os_version": "7",
+        "resolution": "1024x768",
+        "browserstack.local": True,
+    },
+    "win10_chrome62": {
+        "browser": "Chrome",
+        "browser_version": "62.0",
+        "os": "Windows",
+        "os_version": "10",
+        "resolution": "1024x768",
+        "browserstack.local": True,
+    },
+}

tests/acceptance/conftest.py

@@ -2,16 +2,18 @@ import os
 import pytest
 import logging
 from logging.handlers import RotatingFileHandler
+from collections import Mapping
 from selenium import webdriver
 from selenium.webdriver.common.keys import Keys
 from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
 
 from .live_server import LiveServer
+from .browsers import BROWSERSTACK_CONFIG
 
 
 @pytest.fixture(scope="session")
 def live_app(app):
-    handler = RotatingFileHandler('log/acceptance.log', maxBytes=10000, backupCount=1)
+    handler = RotatingFileHandler("log/acceptance.log", maxBytes=10000, backupCount=1)
     handler.setLevel(logging.INFO)
     app.logger.addHandler(handler)
 
@@ -24,44 +26,49 @@ def live_app(app):
     runnable.terminate()
 
 
-@pytest.fixture(scope="session")
-def browserstack_config():
-    return {
-        "win7_ie10": {
-            "browser": "IE",
-            "browser_version": "10.0",
-            "os": "Windows",
-            "os_version": "7",
-            "resolution": "1024x768",
-            "browserstack.local": True,
-        },
-        "iphone7": {
-            'browserName': 'iPhone',
-            'device': 'iPhone 7',
-            'realMobile': 'true',
-            'os_version': '10.3',
-            "browserstack.local": True,
-        }
-    }
+class DriverCollection(Mapping):
+    """
+    Allows access to drivers with dictionary syntax. Keeps track of which ones
+    have already been initialized. Allows teardown of all existing drivers.
+    """
 
+    def __init__(self):
+        self._drivers = {}
 
-@pytest.fixture(scope="session")
-def driver_builder(browserstack_config):
-    def build_driver(config_key):
+    def __iter__(self):
+        return iter(self._drivers)
+
+    def __len__(self):
+        return len(self._drivers)
+
+    def __getitem__(self, name):
+        if name in self._drivers:
+            return self._drivers[name]
+
+        elif name in BROWSERSTACK_CONFIG:
+            self._drivers[name] = self._build_driver(name)
+            return self._drivers[name]
+
+        else:
+            raise AttributeError("Driver {} not found".format(name))
+
+    def _build_driver(self, config_key):
         return webdriver.Remote(
             command_executor="http://{}:{}@hub.browserstack.com:80/wd/hub".format(
                 os.getenv("BROWSERSTACK_EMAIL"), os.getenv("BROWSERSTACK_TOKEN")
             ),
-            desired_capabilities=browserstack_config.get(config_key),
+            desired_capabilities=BROWSERSTACK_CONFIG.get(config_key),
         )
 
-    return build_driver
+    def teardown(self):
+        for driver in self._drivers.values():
+            driver.quit()
 
 
 @pytest.fixture(scope="session")
-def ie10_driver(driver_builder):
-    driver = driver_builder("win7_ie10")
+def drivers():
+    driver_collection = DriverCollection()
 
-    yield driver
+    yield driver_collection
 
-    driver.quit()
+    driver_collection.teardown()

tests/acceptance/test_basic.py

@@ -1,3 +1,9 @@
-def test_can_get_title(live_app, ie10_driver):
-    ie10_driver.get(live_app.server_url)
-    assert "JEDI" in ie10_driver.title
+import pytest
+from .browsers import BROWSERSTACK_CONFIG
+
+
+@pytest.mark.parametrize("browser_type", BROWSERSTACK_CONFIG.keys())
+def test_can_get_title(browser_type, live_app, drivers):
+    driver = drivers[browser_type]
+    driver.get(live_app.server_url)
+    assert "JEDI" in driver.title