1 #!/usr/bin/env python 2 # Copyright (C) 2010 Google Inc. All rights reserved. 3 # 4 # Redistribution and use in source and binary forms, with or without 5 # modification, are permitted provided that the following conditions are 6 # met: 7 # 8 # * Redistributions of source code must retain the above copyright 9 # notice, this list of conditions and the following disclaimer. 10 # * Redistributions in binary form must reproduce the above 11 # copyright notice, this list of conditions and the following disclaimer 12 # in the documentation and/or other materials provided with the 13 # distribution. 14 # * Neither the Google name nor the names of its 15 # contributors may be used to endorse or promote products derived from 16 # this software without specific prior written permission. 17 # 18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 """This is a test implementation of the Port interface that generates the 31 correct output for every test. It can be used for perf testing, because 32 it is pretty much a lower limit on how fast a port can possibly run. 33 34 This implementation acts as a wrapper around a real port (the real port 35 is held as a delegate object). To specify which port, use the port name 36 'dryrun-XXX' (e.g., 'dryrun-chromium-mac-leopard'). If you use just 37 'dryrun', it uses the default port. 38 39 Note that because this is really acting as a wrapper around the underlying 40 port, you must be able to run the underlying port as well 41 (check_build() and check_sys_deps() must pass and auxiliary binaries 42 like layout_test_helper and httpd must work). 43 44 This implementation also modifies the test expectations so that all 45 tests are either SKIPPED or expected to PASS.""" 46 47 from __future__ import with_statement 48 49 import os 50 import sys 51 import time 52 53 import base 54 import factory 55 56 57 class DryRunPort(object): 58 """DryRun implementation of the Port interface.""" 59 60 def __init__(self, **kwargs): 61 pfx = 'dryrun-' 62 if 'port_name' in kwargs: 63 if kwargs['port_name'].startswith(pfx): 64 kwargs['port_name'] = kwargs['port_name'][len(pfx):] 65 else: 66 kwargs['port_name'] = None 67 self.__delegate = factory.get(**kwargs) 68 69 def __getattr__(self, name): 70 return getattr(self.__delegate, name) 71 72 def acquire_http_lock(self): 73 pass 74 75 def release_http_lock(self): 76 pass 77 78 def check_build(self, needs_http): 79 return True 80 81 def check_sys_deps(self, needs_http): 82 return True 83 84 def start_helper(self): 85 pass 86 87 def start_http_server(self): 88 pass 89 90 def start_websocket_server(self): 91 pass 92 93 def stop_helper(self): 94 pass 95 96 def stop_http_server(self): 97 pass 98 99 def stop_websocket_server(self): 100 pass 101 102 def create_driver(self, worker_number): 103 return DryrunDriver(self, worker_number) 104 105 106 class DryrunDriver(base.Driver): 107 """Dryrun implementation of the DumpRenderTree / Driver interface.""" 108 109 def __init__(self, port, worker_number): 110 self._port = port 111 self._worker_number = worker_number 112 113 def cmd_line(self): 114 return ['None'] 115 116 def poll(self): 117 return None 118 119 def run_test(self, driver_input): 120 start_time = time.time() 121 fs = self._port._filesystem 122 if (fs.exists(self._port.reftest_expected_filename(driver_input.filename)) or 123 fs.exists(self._port.reftest_expected_mismatch_filename(driver_input.filename)) or 124 driver_input.filename.endswith('-expected.html')): 125 text = 'test-text' 126 image = 'test-image' 127 checksum = 'test-checksum' 128 audio = None 129 elif driver_input.filename.endswith('-expected-mismatch.html'): 130 text = 'test-text-mismatch' 131 image = 'test-image-mismatch' 132 checksum = 'test-checksum-mismatch' 133 audio = None 134 else: 135 text = self._port.expected_text(driver_input.filename) 136 image = self._port.expected_image(driver_input.filename) 137 checksum = self._port.expected_checksum(driver_input.filename) 138 audio = self._port.expected_audio(driver_input.filename) 139 return base.DriverOutput(text, image, checksum, audio, crash=False, 140 test_time=time.time() - start_time, timeout=False, error='') 141 142 def start(self): 143 pass 144 145 def stop(self): 146 pass 147
