1 files changed, 61 insertions, 0 deletions
diff --git a/Tools/Scripts/webkitpy/common/system/file_lock_unittest.py b/Tools/Scripts/webkitpy/common/system/file_lock_unittest.py
new file mode 100644
index 0000000..c5c1db3
--- /dev/null
+++ b/Tools/Scripts/webkitpy/common/system/file_lock_unittest.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+# Copyright (C) 2010 Gabor Rapcsanyi (rgabor@inf.u-szeged.hu), University of Szeged
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import os
+import tempfile
+import unittest
+
+from webkitpy.common.system.file_lock import FileLock
+
+
+class FileLockTest(unittest.TestCase):
+
+    def setUp(self):
+        self._lock_name = "TestWebKit" + str(os.getpid()) + ".lock"
+        self._lock_path = os.path.join(tempfile.gettempdir(), self._lock_name)
+        self._file_lock1 = FileLock(self._lock_path, 1)
+        self._file_lock2 = FileLock(self._lock_path, 1)
+
+    def tearDown(self):
+        self._file_lock1.release_lock()
+        self._file_lock2.release_lock()
+
+    def test_lock_lifecycle(self):
+        # Create the lock.
+        self._file_lock1.acquire_lock()
+        self.assertTrue(os.path.exists(self._lock_path))
+
+        # Try to lock again.
+        self.assertFalse(self._file_lock2.acquire_lock())
+
+        # Release the lock.
+        self._file_lock1.release_lock()
+        self.assertFalse(os.path.exists(self._lock_path))
+
+    def test_stuck_lock(self):
+        open(self._lock_path, 'w').close()
+        self._file_lock1.acquire_lock()
+        self._file_lock1.release_lock()