Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 209 insertions, 0 deletions

diff --git a/Tools/Scripts/webkitpy/common/system/executive_unittest.py b/Tools/Scripts/webkitpy/common/system/executive_unittest.py
new file mode 100644
index 000000000..a0878f9ce
--- /dev/null
+++ b/Tools/Scripts/webkitpy/common/system/executive_unittest.py
@@ -0,0 +1,209 @@
+# Copyright (C) 2010 Google Inc. All rights reserved.
+# Copyright (C) 2009 Daniel Bates (dbates@intudata.com). All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#    * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#    * 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.
+#    * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "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 THE COPYRIGHT
+# OWNER 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 signal
+import subprocess
+import sys
+import unittest
+
+from webkitpy.common.system.executive import Executive, ScriptError
+from webkitpy.common.system.filesystem_mock import MockFileSystem
+from webkitpy.test import cat, echo
+
+
+class ScriptErrorTest(unittest.TestCase):
+    def test_string_from_args(self):
+        error = ScriptError()
+        self.assertEquals(error._string_from_args(None), 'None')
+        self.assertEquals(error._string_from_args([]), '[]')
+        self.assertEquals(error._string_from_args(map(str, range(30))), "['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17'...")
+
+    def test_message_with_output(self):
+        error = ScriptError('My custom message!', '', -1)
+        self.assertEquals(error.message_with_output(), 'My custom message!')
+        error = ScriptError('My custom message!', '', -1, 'My output.')
+        self.assertEquals(error.message_with_output(), 'My custom message!\n\nMy output.')
+        error = ScriptError('', 'my_command!', -1, 'My output.', '/Users/username/blah')
+        self.assertEquals(error.message_with_output(), 'Failed to run "my_command!" exit_code: -1 cwd: /Users/username/blah\n\nMy output.')
+        error = ScriptError('', 'my_command!', -1, 'ab' + '1' * 499)
+        self.assertEquals(error.message_with_output(), 'Failed to run "my_command!" exit_code: -1\n\nLast 500 characters of output:\nb' + '1' * 499)
+
+def never_ending_command():
+    """Arguments for a command that will never end (useful for testing process
+    killing). It should be a process that is unlikely to already be running
+    because all instances will be killed."""
+    if sys.platform == 'win32':
+        return ['wmic']
+    return ['yes']
+
+
+class ExecutiveTest(unittest.TestCase):
+
+    def assert_interpreter_for_content(self, intepreter, content):
+        fs = MockFileSystem()
+        file_path = None
+        file_interpreter = None
+
+        tempfile, temp_name = fs.open_binary_tempfile('')
+        tempfile.write(content)
+        tempfile.close()
+        file_interpreter = Executive.interpreter_for_script(temp_name, fs)
+
+        self.assertEqual(file_interpreter, intepreter)
+
+    def test_interpreter_for_script(self):
+        self.assert_interpreter_for_content(None, '')
+        self.assert_interpreter_for_content(None, 'abcd\nefgh\nijklm')
+        self.assert_interpreter_for_content(None, '##/usr/bin/perl')
+        self.assert_interpreter_for_content('perl', '#!/usr/bin/env perl')
+        self.assert_interpreter_for_content('perl', '#!/usr/bin/env perl\nfirst\nsecond')
+        self.assert_interpreter_for_content('perl', '#!/usr/bin/perl')
+        self.assert_interpreter_for_content('perl', '#!/usr/bin/perl -w')
+        self.assert_interpreter_for_content(sys.executable, '#!/usr/bin/env python')
+        self.assert_interpreter_for_content(sys.executable, '#!/usr/bin/env python\nfirst\nsecond')
+        self.assert_interpreter_for_content(sys.executable, '#!/usr/bin/python')
+        self.assert_interpreter_for_content('ruby', '#!/usr/bin/env ruby')
+        self.assert_interpreter_for_content('ruby', '#!/usr/bin/env ruby\nfirst\nsecond')
+        self.assert_interpreter_for_content('ruby', '#!/usr/bin/ruby')
+
+    def test_run_command_with_bad_command(self):
+        def run_bad_command():
+            Executive().run_command(["foo_bar_command_blah"], error_handler=Executive.ignore_error, return_exit_code=True)
+        self.failUnlessRaises(OSError, run_bad_command)
+
+    def test_run_command_args_type(self):
+        executive = Executive()
+        self.assertRaises(AssertionError, executive.run_command, "echo")
+        self.assertRaises(AssertionError, executive.run_command, u"echo")
+        executive.run_command(echo.command_arguments('foo'))
+        executive.run_command(tuple(echo.command_arguments('foo')))
+
+    def test_run_command_with_unicode(self):
+        """Validate that it is safe to pass unicode() objects
+        to Executive.run* methods, and they will return unicode()
+        objects by default unless decode_output=False"""
+        unicode_tor_input = u"WebKit \u2661 Tor Arne Vestb\u00F8!"
+        if sys.platform == 'win32':
+            encoding = 'mbcs'
+        else:
+            encoding = 'utf-8'
+        encoded_tor = unicode_tor_input.encode(encoding)
+        # On Windows, we expect the unicode->mbcs->unicode roundtrip to be
+        # lossy. On other platforms, we expect a lossless roundtrip.
+        if sys.platform == 'win32':
+            unicode_tor_output = encoded_tor.decode(encoding)
+        else:
+            unicode_tor_output = unicode_tor_input
+
+        executive = Executive()
+
+        output = executive.run_command(cat.command_arguments(), input=unicode_tor_input)
+        self.assertEquals(output, unicode_tor_output)
+
+        output = executive.run_command(echo.command_arguments("-n", unicode_tor_input))
+        self.assertEquals(output, unicode_tor_output)
+
+        output = executive.run_command(echo.command_arguments("-n", unicode_tor_input), decode_output=False)
+        self.assertEquals(output, encoded_tor)
+
+        # Make sure that str() input also works.
+        output = executive.run_command(cat.command_arguments(), input=encoded_tor, decode_output=False)
+        self.assertEquals(output, encoded_tor)
+
+        # FIXME: We should only have one run* method to test
+        output = executive.run_and_throw_if_fail(echo.command_arguments("-n", unicode_tor_input), quiet=True)
+        self.assertEquals(output, unicode_tor_output)
+
+        output = executive.run_and_throw_if_fail(echo.command_arguments("-n", unicode_tor_input), quiet=True, decode_output=False)
+        self.assertEquals(output, encoded_tor)
+
+    def test_kill_process(self):
+        executive = Executive()
+        process = subprocess.Popen(never_ending_command(), stdout=subprocess.PIPE)
+        self.assertEqual(process.poll(), None)  # Process is running
+        executive.kill_process(process.pid)
+        # Note: Can't use a ternary since signal.SIGKILL is undefined for sys.platform == "win32"
+        if sys.platform == "win32":
+            # FIXME: https://bugs.webkit.org/show_bug.cgi?id=54790
+            # We seem to get either 0 or 1 here for some reason.
+            self.assertTrue(process.wait() in (0, 1))
+        else:
+            expected_exit_code = -signal.SIGKILL
+            self.assertEqual(process.wait(), expected_exit_code)
+        # Killing again should fail silently.
+        executive.kill_process(process.pid)
+
+    def _assert_windows_image_name(self, name, expected_windows_name):
+        executive = Executive()
+        windows_name = executive._windows_image_name(name)
+        self.assertEqual(windows_name, expected_windows_name)
+
+    def test_windows_image_name(self):
+        self._assert_windows_image_name("foo", "foo.exe")
+        self._assert_windows_image_name("foo.exe", "foo.exe")
+        self._assert_windows_image_name("foo.com", "foo.com")
+        # If the name looks like an extension, even if it isn't
+        # supposed to, we have no choice but to return the original name.
+        self._assert_windows_image_name("foo.baz", "foo.baz")
+        self._assert_windows_image_name("foo.baz.exe", "foo.baz.exe")
+
+    def test_kill_all(self):
+        executive = Executive()
+        # We use "yes" because it loops forever.
+        process = subprocess.Popen(never_ending_command(), stdout=subprocess.PIPE)
+        self.assertEqual(process.poll(), None)  # Process is running
+        executive.kill_all(never_ending_command()[0])
+        # Note: Can't use a ternary since signal.SIGTERM is undefined for sys.platform == "win32"
+        if sys.platform == "cygwin":
+            expected_exit_code = 0  # os.kill results in exit(0) for this process.
+            self.assertEqual(process.wait(), expected_exit_code)
+        elif sys.platform == "win32":
+            # FIXME: https://bugs.webkit.org/show_bug.cgi?id=54790
+            # We seem to get either 0 or 1 here for some reason.
+            self.assertTrue(process.wait() in (0, 1))
+        else:
+            expected_exit_code = -signal.SIGTERM
+            self.assertEqual(process.wait(), expected_exit_code)
+        # Killing again should fail silently.
+        executive.kill_all(never_ending_command()[0])
+
+    def test_check_running_pid(self):
+        executive = Executive()
+        self.assertTrue(executive.check_running_pid(os.getpid()))
+        # Maximum pid number on Linux is 32768 by default
+        self.assertFalse(executive.check_running_pid(100000))
+
+    def test_running_pids(self):
+        if sys.platform in ("win32", "cygwin"):
+            return  # This function isn't implemented on Windows yet.
+
+        executive = Executive()
+        pids = executive.running_pids()
+        self.assertTrue(os.getpid() in pids)