Inject dependencies into tornado app

tests/conftest.py

@@ -1,9 +1,19 @@
 import pytest
 
-from atst.app import make_app, make_config
+from atst.app import make_app, make_deps, make_config
+from tests.mocks import MockApiClient
 
 
 @pytest.fixture
 def app():
+    TEST_DEPS = {
+        'authz_client': MockApiClient('authz'),
+        'requests_client': MockApiClient('requests'),
+        'authnid_client': MockApiClient('authnid'),
+    }
+
     config = make_config()
-    return make_app(config)
+    deps = make_deps(config)
+    deps.update(TEST_DEPS)
+
+    return make_app(config, deps)