diff -r 5e025dc7d728 Lib/test/test_webbrowser.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Lib/test/test_webbrowser.py	Sun Aug 12 17:31:28 2012 +0300
@@ -0,0 +1,88 @@
+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 assert_unix_browser(self, browser_class, args, noraise_args=None,
+                            tab_args=None, new_args=None):
+        URL = 'http://www.example.com/'
+        NAME = 'test'
+        browser = browser_class(name=NAME)
+        popen = subprocess.Popen
+
+        browser.open(URL)
+        self.assertEqual(popen.cmd_line, args)
+
+        if noraise_args is not None:
+            browser.open(URL, autoraise=False)
+            self.assertEqual(popen.cmd_line, noraise_args)
+
+        if tab_args is not None:
+            browser.open_new_tab(URL)
+            self.assertEqual(popen.cmd_line, tab_args)
+
+        if new_args is not None:
+            browser.open_new(URL)
+            self.assertEqual(popen.cmd_line, new_args)
+
+    def test_generic(self, popen):
+        args = ['test', 'http://www.example.com/']
+        self.assert_unix_browser(webbrowser.GenericBrowser, args)
+
+    def test_background(self, popen):
+        args = ['test', 'http://www.example.com/']
+        self.assert_unix_browser(webbrowser.BackgroundBrowser, args)
+
+    def test_chrome(self, popen):
+        args = tab_args = ['test', 'http://www.example.com/']
+        new_args = ['test', '--new-window', 'http://www.example.com/']
+        self.assert_unix_browser(webbrowser.Chrome, args, None, tab_args, new_args)
+
+    def test_mozilla(self, popen):
+        args = ['test', '-raise', '-remote', 'openURL(http://www.example.com/)']
+        noraise_args = ['test', '-noraise', '-remote', 'openURL(http://www.example.com/)']
+        tab_args = ['test', '-raise', '-remote', 'openURL(http://www.example.com/,new-tab)']
+        new_args = ['test', '-raise', '-remote', 'openURL(http://www.example.com/,new-window)']
+        self.assert_unix_browser(webbrowser.Mozilla, args, noraise_args, tab_args, new_args)
+
+    def test_galeon(self, popen):
+        args = ['test', '-n', 'http://www.example.com/']
+        noraise_args = ['test', '-noraise', '-n', 'http://www.example.com/']
+        tab_args = ['test', '-w', 'http://www.example.com/']
+        new_args = ['test', '-w', 'http://www.example.com/']
+        self.assert_unix_browser(webbrowser.Galeon, args, noraise_args, tab_args, new_args)
+
+    def test_opera(self, popen):
+        args = ['test', '-remote', 'openURL(http://www.example.com/)']
+        noraise_args = ['test', '-noraise', '-remote', 'openURL(http://www.example.com/)']
+        tab_args = ['test', '-remote', 'openURL(http://www.example.com/,new-page)']
+        new_args =['test', '-remote', 'openURL(http://www.example.com/,new-window)']
+        self.assert_unix_browser(webbrowser.Opera, args, noraise_args, tab_args, new_args)
+
+    def test_elinks(self, popen):
+        args = ['test', '-remote', 'openURL(http://www.example.com/)']
+        noraise_args = ['test', '-remote', 'openURL(http://www.example.com/)']
+        tab_args = ['test', '-remote', 'openURL(http://www.example.com/,new-tab)']
+        new_args = ['test', '-remote', 'openURL(http://www.example.com/,new-window)']
+        self.assert_unix_browser(webbrowser.Elinks, args, noraise_args, tab_args, new_args)
+
+
+if __name__ == '__main__':
+    unittest.main()