test: add test for Object._repr_pretty() method

Since _repr_pretty() uses output of str(obj), and the latter is already heavily tested in tests/test_language_c.py, we can simply test whether p.text is call made instead of duplicating all the test cases. Signed-off-by: Shung-Hsi Yu <[email protected]>
osandov · Aug 15, 2022 · 21d638f · 21d638f
1 parent 9fb6dcc
commit 21d638f
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/tests/test_object.py b/tests/test_object.py
@@ -4,6 +4,7 @@
 import math
 import operator
 import struct
+import unittest
 
 from drgn import (
     FaultError,
@@ -1718,3 +1719,13 @@ def test_iter(self):
             iter,
             Object(self.prog, "int []", address=0),
         )
+
+    def test__repr_pretty_(self):
+        obj = Object(self.prog, "int", value=0)
+        pretty_printer_mock = unittest.mock.Mock()
+
+        obj._repr_pretty_(pretty_printer_mock, False)
+        pretty_printer_mock.text.assert_called_with(str(obj))
+
+        obj._repr_pretty_(p=pretty_printer_mock, cycle=True)
+        pretty_printer_mock.text.assert_called_with("...")