feat(arborist): no error if mapping={} + fix run.py

peregrine/auth/__init__.py

@@ -12,6 +12,7 @@
 from authutils.user import current_user
 from cdislogging import get_logger
 from datamodelutils import models
+from gen3authz.client.arborist.errors import ArboristError
 import flask
 
 from peregrine.errors import AuthNError
@@ -89,9 +90,10 @@ def get_read_access_projects():
     """
     Get all resources the user has read access to and parses the Arborist resource paths into a program.name and a project.code.
     """
-    mapping = flask.current_app.auth.auth_mapping(current_user.username)
-    if not mapping:
-        raise AuthNError("Unable to retrieve auth mapping")
+    try:
+        mapping = flask.current_app.auth.auth_mapping(current_user.username)
+    except ArboristError as e:
+        raise AuthNError("Unable to retrieve auth mapping: {}".format(e))
 
     with flask.current_app.db.session_scope():
         read_access_projects = [

run.py

@@ -96,6 +96,19 @@ def run_with_fake_auth():
         run_for_development(debug=debug, threaded=True)
 
 
+def run_with_fake_authz():
+    """
+    Mocks arborist calls.
+    """
+    auth_mapping = {}  # modify this to mock specific access
+    with patch(
+        'gen3authz.client.arborist.client.ArboristClient.auth_mapping',
+        new_callable=PropertyMock,
+        return_value=lambda x: auth_mapping,
+    ):
+        run_for_development(debug=debug, threaded=True)
+
+
 def run_with_fake_download():
     with patch("peregrine.download.get_nodes", fake_get_nodes):
         with patch.multiple("peregrine.download",
@@ -116,4 +129,4 @@ def run_with_fake_download():
         if os.environ.get("GDC_FAKE_AUTH") == 'True':
             run_with_fake_auth()
         else:
-            run_for_development(debug=debug, threaded=True)
+            run_with_fake_authz()