Permit to raise useless suppression

Closes #373

prospector/tools/pylint/__init__.py

@@ -72,7 +72,6 @@ def _prospector_configure(self, prospector_config, linter):
         linter.disable("locally-disabled")  # notification about disabling a message
         linter.enable("file-ignored")  # notification about disabling an entire file
         linter.enable("suppressed-message")  # notification about a message being suppressed
-        linter.disable("useless-suppression")  # notification about message suppressed which was not raised
         linter.disable("deprecated-pragma")  # notification about use of deprecated 'pragma' option
 
         # disable the 'mixed indentation' warning, since it actually will only

tests/tools/pylint/test_pylint_tool.py

@@ -37,16 +37,16 @@ def test_wont_throw_false_positive_relative_beyond_top_level(self):
         messages = pylint_tool.run(found_files)
         self.assertListEqual(messages, [])
 
-    def test_wont_throw_useless_suppression(self):
+    def test_will_throw_useless_suppression(self):
         with patch("os.getcwd", return_value=os.path.realpath("tests/tools/pylint/testpath/")):
             pylint_tool, config = _get_pylint_tool_and_prospector_config(argv_patch=["", "-t", "pylint"])
         root = os.path.join(os.path.dirname(__file__), "testpath", "test_useless_suppression.py")
         found_files = find_python([], [root], explicit_file_mode=True)
         pylint_tool.configure(config, found_files)
         messages = pylint_tool.run(found_files)
-        for message in messages:
-            if message.code == "useless-suppression":
-                self.fail("useless-suppression was thrown")
+        assert any(
+            m.code == "useless-suppression" for m in messages
+        ), "There should be at least one useless suppression"
 
     def test_use_pylint_default_path_finder(self):
         workdir = os.path.realpath("tests/tools/pylint/testpath/absolute-import/")