1 files changed, 19 insertions, 0 deletions
diff --git a/tests/auth.py b/tests/auth.py
index bd81578a..4ede3240 100644
--- a/tests/auth.py
+++ b/tests/auth.py
@@ -11,6 +11,7 @@ from pytest import raises
 from paramiko import (
     AgentKey,
     AuthenticationException,
+    AuthFailure,
     AuthResult,
     AuthSource,
     AuthStrategy,
@@ -492,5 +493,23 @@ class AuthResult_:
             assert str(result) == "NoneAuth() -> success"
 
 
+class AuthFailure_:
+    def is_an_AuthenticationException(self):
+        assert isinstance(AuthFailure(None), AuthenticationException)
+
+    def init_requires_result(self):
+        with raises(TypeError):
+            AuthFailure()
+        result = AuthResult(None)
+        fail = AuthFailure(result=result)
+        assert fail.result is result
+
+    def str_is_newline_plus_result_str(self):
+        result = AuthResult(None)
+        result.append(SourceResult(NoneAuth("foo"), Exception("onoz")))
+        fail = AuthFailure(result)
+        assert str(fail) == "\nNoneAuth() -> onoz"
+
+
 class AuthStrategy_:
     pass