Fix unit tests by passing conf we already had, not sure why get_confi…

…g fails there otherwise.

djangosaml2/utils.py

@@ -38,16 +38,18 @@ def available_idps(config, langpref=None):
     return dict([(idp, config.metadata.name(idp, langpref)) for idp in idps])
 
 
-def get_idp_sso_supported_bindings(idp_entity_id=None):
+def get_idp_sso_supported_bindings(idp_entity_id=None, config=None):
     """Returns the list of bindings supported by an IDP
     This is not clear in the pysaml2 code, so wrapping it in a util"""
-    # avoid circular import
-    from djangosaml2.conf import get_config
+    if config is None:
+        # avoid circular import
+        from djangosaml2.conf import get_config
+        config = get_config()
     # load metadata store from config
-    config = get_config()
     meta = getattr(config, 'metadata', {})
     # if idp is None, assume only one exists so just use that
-    idp_entity_id = available_idps(config).keys().pop()
+    if idp_entity_id is None:
+        idp_entity_id = available_idps(config).keys().pop()
     try:
         return meta.service(idp_entity_id, 'idpsso_descriptor', 'single_sign_on_service').keys()
     except UnknownSystemEntity:

djangosaml2/views.py

@@ -161,7 +161,7 @@ def login(request,
     binding = BINDING_HTTP_POST if sign_requests else BINDING_HTTP_REDIRECT
 
     # ensure our selected binding is supported by the IDP
-    supported_bindings = get_idp_sso_supported_bindings(selected_idp)
+    supported_bindings = get_idp_sso_supported_bindings(selected_idp, config=conf)
     if binding not in supported_bindings:
         logger.debug('Binding %s not in IDP %s supported bindings: %s',
                      binding, selected_idp, supported_bindings)