Add tests for to_bool() when passing boolean values

Author: kotfu

tests/test_utils.py

@@ -843,6 +843,11 @@ def test_to_bool_str_invalid():
         cu.to_bool('other')
 
 
+def test_to_bool_bool():
+    assert cu.to_bool(True)
+    assert not cu.to_bool(False)
+    
+
 def test_to_bool_int():
     assert cu.to_bool(1)
     assert cu.to_bool(-1)