Extend functionality of MockFileSystem.move()

Tools/Scripts/webkitpy/common/system/filesystem_unittest.py

Index: Tools/Scripts/webkitpy/common/system/filesystem_unittest.py
diff --git a/Tools/Scripts/webkitpy/common/system/filesystem_unittest.py b/Tools/Scripts/webkitpy/common/system/filesystem_unittest.py
index 736516c1258c411665286aa3b035794230175593..3f7dedbb60313848816a4fc809054b8b53e7045a 100644
--- a/Tools/Scripts/webkitpy/common/system/filesystem_unittest.py
+++ b/Tools/Scripts/webkitpy/common/system/filesystem_unittest.py
@@ -124,6 +124,17 @@ class GenericFileSystemTests(object):
         self.assertTrue(self.fs.exists('bardir'))
         self.assertTrue(self.fs.exists(self.fs.join('bardir', 'baz')))
 
+    def test_move(self):
+        self.fs.chdir(self.generic_test_dir)
+        self.fs.move('foo.txt', 'bar.txt')
+        self.assertFalse(self.fs.exists('foo.txt'))
+        self.assertTrue(self.fs.exists('bar.txt'))
+        self.fs.move('foodir', 'bardir')
+        self.assertFalse(self.fs.exists('foodir'))
+        self.assertFalse(self.fs.exists(self.fs.join('foodir', 'baz')))
+        self.assertTrue(self.fs.exists('bardir'))
+        self.assertTrue(self.fs.exists(self.fs.join('bardir', 'baz')))
+
 class RealFileSystemTest(unittest.TestCase, GenericFileSystemTests):
     def setUp(self):
         self.fs = FileSystem()