Merge pull request #3125 from alphagov/faster-tests

Create the app once per run, not once per test

scripts/run_tests.sh

@@ -37,5 +37,5 @@ npm test
 display_result $? 3 "Front end code style check"
 
 ## Code coverage
-py.test -n4 --maxfail=10 --cov=app --cov-report=term-missing tests/ --junitxml=test_results.xml --strict -p no:warnings
+py.test -n auto --maxfail=10 --cov=app --cov-report=term-missing tests/ --junitxml=test_results.xml --strict -p no:warnings
 display_result $? 4 "Code coverage"

tests/conftest.py

@@ -36,7 +36,7 @@ class ElementNotFound(Exception):
     pass
 
 
-@pytest.fixture
+@pytest.fixture(scope='session')
 def app_(request):
     app = Flask('app')
     create_app(app)
@@ -47,8 +47,6 @@ def app_(request):
     app.test_client_class = TestClient
     yield app
 
-    ctx.pop()
-
 
 @pytest.fixture(scope='function')
 def service_one(api_user_active):