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diff --git a/test/automated/flymake-tests.el b/test/automated/flymake-tests.el
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+;;; flymake-tests.el --- Test suite for flymake
+
+;; Copyright (C) 2011-2013 Free Software Foundation, Inc.
+
+;; Author: Eduard Wiebe <usenet@pusto.de>
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+(require 'ert)
+(require 'flymake)
+
+(defgroup flymake-tests nil
+  "Test suite for flymake.")
+
+
+;; Warning predicate
+(defun flymake-tests--current-face (file predicate)
+  (let ((buffer (find-file-noselect file)))
+    (unwind-protect
+        (with-current-buffer (find-file-noselect file)
+          (setq-local flymake-warning-predicate predicate)
+          (goto-char (point-min))
+          (flymake-mode 1)
+          ;; XXX: is this reliable enough?
+          (sleep-for (+ 0.5 flymake-no-changes-timeout))
+          (flymake-goto-next-error)
+          (face-at-point))
+      (and buffer (kill-buffer buffer)))))
+
+(ert-deftest warnining-predicate-rx-gcc ()
+  "Test GCC warning via regexp predicate."
+  :expected-result (if (executable-find "gcc") :passed :failed)
+  (should (eq 'flymake-warnline
+              (flymake-tests--current-face
+               "flymake/warnpred/test.c"
+               "^[Ww]arning"))))
+
+(ert-deftest warning-predicate-function-gcc ()
+  "Test GCC warning via function predicate."
+  :expected-result (if (and (executable-find "gcc") (executable-find "make"))
+                       :passed
+                     :failed)
+  (should (eq 'flymake-warnline
+              (flymake-tests--current-face
+               "flymake/warnpred/test.c"
+               (lambda (msg) (string-match "^[Ww]arning" msg))))))
+
+(ert-deftest warning-predicate-rx-perl ()
+  "Test perl warning via regular expression predicate."
+  :expected-result (if (executable-find "perl") :passed :failed)
+  (should (eq 'flymake-warnline
+              (flymake-tests--current-face
+               "flymake/warnpred/test.pl"
+               "^Scalar value"))))
+
+(ert-deftest warning-predicate-function-perl ()
+  "Test perl warning via function predicate."
+  :expected-result (if (executable-find "perl") :passed :failed)
+  (should (eq 'flymake-warnline
+              (flymake-tests--current-face
+               "flymake/warnpred/test.pl"
+               (lambda (msg) (string-match "^Scalar value" msg))))))
+
+(provide 'flymake-tests)
+
+;;; flymake.el ends here