Add :confval:suppress_warnings to supress arbitrary warning message

tests/test_util_logging.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+"""
+    test_util_logging
+    ~~~~~~~~~~~~~~~~~
+
+    Test logging util.
+
+    :copyright: Copyright 2007-2016 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+from __future__ import print_function
+
+from sphinx.util.logging import is_suppressed_warning
+
+
+def test_is_suppressed_warning():
+    suppress_warnings = ["ref", "files.*", "rest.duplicated_labels"]
+
+    assert is_suppressed_warning(None, None, suppress_warnings) is False
+    assert is_suppressed_warning("ref", None, suppress_warnings) is True
+    assert is_suppressed_warning("ref", "numref", suppress_warnings) is True
+    assert is_suppressed_warning("ref", "option", suppress_warnings) is True
+    assert is_suppressed_warning("files", "image", suppress_warnings) is True
+    assert is_suppressed_warning("files", "stylesheet", suppress_warnings) is True
+    assert is_suppressed_warning("rest", "syntax", suppress_warnings) is False
+    assert is_suppressed_warning("rest", "duplicated_labels", suppress_warnings) is True