1 # Copyright (C) 2011 Google Inc. All rights reserved. 2 # 3 # Redistribution and use in source and binary forms, with or without 4 # modification, are permitted provided that the following conditions are 5 # met: 6 # 7 # * Redistributions of source code must retain the above copyright 8 # notice, this list of conditions and the following disclaimer. 9 # * Redistributions in binary form must reproduce the above 10 # copyright notice, this list of conditions and the following disclaimer 11 # in the documentation and/or other materials provided with the 12 # distribution. 13 # * Neither the name of Google Inc. nor the names of its 14 # contributors may be used to endorse or promote products derived from 15 # this software without specific prior written permission. 16 # 17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 import sys 30 import time 31 import webkitpy.thirdparty.unittest2 as unittest 32 33 from webkitpy.layout_tests.port.factory import PortFactory 34 from webkitpy.layout_tests.port import server_process 35 from webkitpy.common.system.systemhost import SystemHost 36 from webkitpy.common.system.systemhost_mock import MockSystemHost 37 from webkitpy.common.system.outputcapture import OutputCapture 38 39 40 41 class TrivialMockPort(object): 42 def __init__(self): 43 self.host = MockSystemHost() 44 self.host.executive.kill_process = lambda x: None 45 self.host.executive.kill_process = lambda x: None 46 47 def results_directory(self): 48 return "/mock-results" 49 50 def process_kill_time(self): 51 return 1 52 53 54 class MockFile(object): 55 def __init__(self, server_process): 56 self._server_process = server_process 57 self.closed = False 58 59 def fileno(self): 60 return 1 61 62 def write(self, line): 63 self._server_process.broken_pipes.append(self) 64 raise IOError 65 66 def close(self): 67 self.closed = True 68 69 70 class MockProc(object): 71 def __init__(self, server_process): 72 self.stdin = MockFile(server_process) 73 self.stdout = MockFile(server_process) 74 self.stderr = MockFile(server_process) 75 self.pid = 1 76 77 def poll(self): 78 return 1 79 80 def wait(self): 81 return 0 82 83 84 class FakeServerProcess(server_process.ServerProcess): 85 def _start(self): 86 self._proc = MockProc(self) 87 self.stdin = self._proc.stdin 88 self.stdout = self._proc.stdout 89 self.stderr = self._proc.stderr 90 self._pid = self._proc.pid 91 self.broken_pipes = [] 92 93 94 class TestServerProcess(unittest.TestCase): 95 def test_basic(self): 96 cmd = [sys.executable, '-c', 'import sys; import time; time.sleep(0.02); print "stdout"; sys.stdout.flush(); print >>sys.stderr, "stderr"'] 97 host = SystemHost() 98 factory = PortFactory(host) 99 port = factory.get() 100 now = time.time() 101 proc = server_process.ServerProcess(port, 'python', cmd) 102 proc.write('') 103 104 self.assertEqual(proc.poll(), None) 105 self.assertFalse(proc.has_crashed()) 106 107 # check that doing a read after an expired deadline returns 108 # nothing immediately. 109 line = proc.read_stdout_line(now - 1) 110 self.assertEqual(line, None) 111 112 # FIXME: This part appears to be flaky. line should always be non-None. 113 # FIXME: https://bugs.webkit.org/show_bug.cgi?id=88280 114 line = proc.read_stdout_line(now + 1.0) 115 if line: 116 self.assertEqual(line.strip(), "stdout") 117 118 line = proc.read_stderr_line(now + 1.0) 119 if line: 120 self.assertEqual(line.strip(), "stderr") 121 122 proc.stop(0) 123 124 def test_cleanup(self): 125 port_obj = TrivialMockPort() 126 server_process = FakeServerProcess(port_obj=port_obj, name="test", cmd=["test"]) 127 server_process._start() 128 server_process.stop() 129 self.assertTrue(server_process.stdin.closed) 130 self.assertTrue(server_process.stdout.closed) 131 self.assertTrue(server_process.stderr.closed) 132 133 def test_broken_pipe(self): 134 port_obj = TrivialMockPort() 135 136 port_obj.host.platform.os_name = 'win' 137 server_process = FakeServerProcess(port_obj=port_obj, name="test", cmd=["test"]) 138 server_process.write("should break") 139 self.assertTrue(server_process.has_crashed()) 140 self.assertIsNotNone(server_process.pid()) 141 self.assertIsNone(server_process._proc) 142 self.assertEqual(server_process.broken_pipes, [server_process.stdin]) 143 144 port_obj.host.platform.os_name = 'mac' 145 server_process = FakeServerProcess(port_obj=port_obj, name="test", cmd=["test"]) 146 server_process.write("should break") 147 self.assertTrue(server_process.has_crashed()) 148 self.assertIsNone(server_process._proc) 149 self.assertEqual(server_process.broken_pipes, [server_process.stdin]) 150
