diff --git a/tests/config/__init__.py b/tests/config/__init__.py
index e4d7a805f..1d35df3ec 100644
--- a/tests/config/__init__.py
+++ b/tests/config/__init__.py
@@ -20,12 +20,32 @@ def test_config_show_opcodes_size(self):
         # example: 0x5555555546b2 897dec      <main+8>         mov    DWORD PTR [rbp-0x14], edi
         self.assertRegex(res, r"(0x([0-9a-f]{2})+)\s+(([0-9a-f]{2})+)\s+<[^>]+>\s+(.*)")
 
-    def test_config_validator(self):
+    def test_config_hook_validator(self):
         """Check that a GefSetting hook can prevent setting a config."""
         res = gdb_run_cmd("gef config gef.tempdir '/tmp/path with space'")
         # Validators just use `err` to print an error
         self.assertNoException(res)
-        self.assertRegex(res, r".+Cannot set.+setting cannot contain spaces")
+        self.assertRegex(res, r"[!].+Cannot set.+setting cannot contain spaces")
 
         res = gdb_run_cmd("gef config gef.tempdir '/tmp/valid-path'")
         self.assertNoException(res)
+        self.assertNotIn("[!]", res)
+
+    def test_config_type_validator(self):
+        """Check that a GefSetting type can prevent setting a config."""
+        res = gdb_run_cmd("gef config gef.debug invalid")
+        self.assertNoException(res)
+        self.assertRegex(res, r"[!].+expects type 'bool'")
+
+        res = gdb_run_cmd("gef config gef.debug true")
+        self.assertNoException(res)
+        self.assertNotIn("[!]", res)
+        res = gdb_run_cmd("gef config gef.debug 1")
+        self.assertNoException(res)
+        self.assertNotIn("[!]", res)
+        res = gdb_run_cmd("gef config gef.debug F")
+        self.assertNoException(res)
+        self.assertNotIn("[!]", res)
+        res = gdb_run_cmd("gef config gef.debug 0")
+        self.assertNoException(res)
+        self.assertNotIn("[!]", res)