diff -r 6347deda8b87 Lib/test/test_webbrowser.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Lib/test/test_webbrowser.py	Sat Aug 04 20:31:05 2012 +0300
@@ -0,0 +1,131 @@
+import webbrowser
+import subprocess
+import unittest
+from unittest import mock
+
+
+class PopenMock(mock.MagicMock):
+
+    def poll(self):
+        return 0
+
+    def wait(self, seconds=None):
+        return 0
+
+    @property
+    def cmd_line(self):
+        return self.call_args[0][0]
+
+
+@mock.patch('subprocess.Popen', new_callable=PopenMock)
+class CommandTest(unittest.TestCase):
+    
+    def test_generic(self, popen):
+        browser = webbrowser.GenericBrowser(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', 'http://www.example.com/'])
+
+    def test_background(self, popen):
+        browser = webbrowser.BackgroundBrowser(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', 'http://www.example.com/'])
+
+    def test_chrome(self, popen):
+        browser = webbrowser.Chrome(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', 'http://www.example.com/'])
+
+        browser.open_new_tab('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', 'http://www.example.com/'])
+
+        browser.open_new('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '--new-window', 'http://www.example.com/'])
+
+    def test_mozilla(self, popen):
+        browser = webbrowser.Mozilla(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-raise', '-remote',
+            'openURL(http://www.example.com/)'])
+
+        browser.open('http://www.example.com/', autoraise=False)
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-noraise', '-remote',
+            'openURL(http://www.example.com/)'])
+
+        browser.open_new_tab('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-raise', '-remote',
+            'openURL(http://www.example.com/,new-tab)'])
+
+        browser.open_new('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-raise', '-remote',
+            'openURL(http://www.example.com/,new-window)'])
+
+    def test_galeon(self, popen):
+        browser = webbrowser.Galeon(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-n', 'http://www.example.com/'])
+
+        browser.open('http://www.example.com/', autoraise=False)
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-noraise', '-n', 'http://www.example.com/'])
+
+        browser.open_new_tab('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-w', 'http://www.example.com/'])
+
+        browser.open_new('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-w', 'http://www.example.com/'])
+
+    def test_opera(self, popen):
+        browser = webbrowser.Opera(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/)'])
+
+        browser.open('http://www.example.com/', autoraise=False)
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-noraise', '-remote',
+            'openURL(http://www.example.com/)'])
+
+        browser.open_new_tab('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/,new-page)'])
+
+        browser.open_new('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/,new-window)'])
+
+    def test_elinks(self, popen):
+        browser = webbrowser.Elinks(name='test')
+        browser.open('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/)'])
+
+        browser.open('http://www.example.com/', autoraise=False)
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/)'])
+
+        browser.open_new_tab('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/,new-tab)'])
+
+        browser.open_new('http://www.example.com/')
+        args = popen.cmd_line
+        self.assertEqual(args, ['test', '-remote',
+            'openURL(http://www.example.com/,new-window)'])