Handling the EMAIL_EXISTS error code (#348)

Author: hiranya911

firebase_admin/_auth_utils.py

@@ -257,6 +257,7 @@ def __init__(self, message, cause=None, http_response=None):
 _CODE_TO_EXC_TYPE = {
     'DUPLICATE_EMAIL': EmailAlreadyExistsError,
     'DUPLICATE_LOCAL_ID': UidAlreadyExistsError,
+    'EMAIL_EXISTS': EmailAlreadyExistsError,
     'INVALID_DYNAMIC_LINK_DOMAIN': InvalidDynamicLinkDomainError,
     'INVALID_ID_TOKEN': InvalidIdTokenError,
     'PHONE_NUMBER_EXISTS': PhoneNumberAlreadyExistsError,

tests/test_user_mgt.py

@@ -292,6 +292,7 @@ class TestCreateUser(object):
     already_exists_errors = {
         'DUPLICATE_EMAIL': auth.EmailAlreadyExistsError,
         'DUPLICATE_LOCAL_ID': auth.UidAlreadyExistsError,
+        'EMAIL_EXISTS': auth.EmailAlreadyExistsError,
         'PHONE_NUMBER_EXISTS': auth.PhoneNumberAlreadyExistsError,
     }