Mercurial > ~astiob > upreckon > hgweb
annotate testcases.py @ 62:593ad09cd69b
Multiple exit code handling fixes
call() on POSIX now always gets the exit code of the process.
force_zero_exitcode now has no effect if the process got killed by a signal.
| author | Oleg Oshmyan <chortos@inbox.lv> |
|---|---|
| date | Wed, 22 Dec 2010 15:03:47 +0200 |
| parents | 24f144e11b5e |
| children | fb9d0223a871 |
| rev | line source |
|---|---|
| 21 | 1 #! /usr/bin/env python |
| 16 | 2 # Copyright (c) 2010 Chortos-2 <chortos@inbox.lv> |
| 3 | |
| 43 | 4 # TODO: copy the ansfile if not options.erase even if no validator is used |
| 5 | |
| 21 | 6 from __future__ import division, with_statement |
| 7 | |
| 8 try: | |
| 9 from compat import * | |
| 10 import files, problem, config | |
| 11 except ImportError: | |
| 12 import __main__ | |
| 13 __main__.import_error(sys.exc_info()[1]) | |
| 14 else: | |
| 15 from __main__ import clock, options | |
| 16 | |
| 17 import glob, re, sys, tempfile, time | |
| 18 from subprocess import Popen, PIPE, STDOUT | |
| 19 | |
| 20 import os | |
| 21 devnull = open(os.path.devnull, 'w+') | |
| 22 | |
| 23 try: | |
| 24 from signal import SIGTERM, SIGKILL | |
| 25 except ImportError: | |
| 26 SIGTERM = 15 | |
| 27 SIGKILL = 9 | |
| 28 | |
| 16 | 29 try: |
| 21 | 30 from _subprocess import TerminateProcess |
| 31 except ImportError: | |
| 32 # CPython 2.5 does define _subprocess.TerminateProcess even though it is | |
| 33 # not used in the subprocess module, but maybe something else does not | |
| 34 try: | |
| 35 import ctypes | |
| 36 TerminateProcess = ctypes.windll.kernel32.TerminateProcess | |
| 37 except (ImportError, AttributeError): | |
| 38 TerminateProcess = None | |
| 39 | |
| 22 | 40 |
| 41 # Do the hacky-wacky dark magic needed to catch presses of the Escape button. | |
| 42 # If only Python supported forcible termination of threads... | |
| 43 if not sys.stdin.isatty(): | |
| 44 canceled = init_canceled = lambda: False | |
| 45 pause = None | |
| 46 else: | |
| 47 try: | |
| 48 # Windows has select() too, but it is not the select() we want | |
| 49 import msvcrt | |
| 50 except ImportError: | |
| 51 try: | |
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52 from select import select |
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53 import termios, tty, atexit |
| 22 | 54 except ImportError: |
| 55 # It cannot be helped! | |
| 56 # Silently disable support for killing the program being tested | |
| 57 canceled = init_canceled = lambda: False | |
| 58 pause = None | |
| 59 else: | |
| 60 def cleanup(old=termios.tcgetattr(sys.stdin.fileno())): | |
| 61 termios.tcsetattr(sys.stdin.fileno(), termios.TCSAFLUSH, old) | |
| 62 atexit.register(cleanup) | |
| 63 del cleanup | |
| 64 tty.setcbreak(sys.stdin.fileno()) | |
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65 def canceled(select=select, stdin=sys.stdin, read=sys.stdin.read): |
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66 while select((stdin,), (), (), 0)[0]: |
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67 if read(1) == '\33': |
| 22 | 68 return True |
| 69 return False | |
| 70 def init_canceled(): | |
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71 while select((sys.stdin,), (), (), 0)[0]: |
| 22 | 72 sys.stdin.read(1) |
| 73 def pause(): | |
| 74 sys.stdin.read(1) | |
| 75 else: | |
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76 def canceled(kbhit=msvcrt.kbhit, getch=msvcrt.getch): |
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77 while kbhit(): |
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78 c = getch() |
| 22 | 79 if c == '\33': |
| 80 return True | |
| 81 elif c == '\0': | |
| 82 # Let's hope no-one is fiddling with this | |
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83 getch() |
| 22 | 84 return False |
| 85 def init_canceled(): | |
| 86 while msvcrt.kbhit(): | |
| 87 msvcrt.getch() | |
| 88 def pause(): | |
| 89 msvcrt.getch() | |
| 90 | |
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91 try: |
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92 from signal import SIGCHLD, signal, SIG_DFL |
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93 from select import select, error as select_error |
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94 from errno import EINTR |
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95 except ImportError: |
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96 try: |
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97 from _subprocess import WAIT_OBJECT_0, STD_INPUT_HANDLE, INFINITE |
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98 except ImportError: |
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99 WAIT_OBJECT_0 = 0 |
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100 STD_INPUT_HANDLE = -10 |
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101 INFINITE = -1 |
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102 try: |
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103 import ctypes |
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104 SetConsoleMode = ctypes.windll.kernel32.SetConsoleMode |
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105 FlushConsoleInputBuffer = ctypes.windll.kernel32.FlushConsoleInputBuffer |
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106 WaitForMultipleObjects = ctypes.windll.kernel32.WaitForMultipleObjects |
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107 ReadConsoleInputA = ctypes.windll.kernel32.ReadConsoleInputA |
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108 try: |
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109 from _subprocess import GetStdHandle |
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110 except ImportError: |
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111 GetStdHandle = ctypes.windll.kernel32.GetStdHandle |
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112 except (ImportError, AttributeError): |
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113 console_input = False |
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114 else: |
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115 hStdin = GetStdHandle(STD_INPUT_HANDLE) |
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116 console_input = bool(SetConsoleMode(hStdin, 1)) |
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117 if console_input: |
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118 FlushConsoleInputBuffer(hStdin) |
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119 class KEY_EVENT_RECORD(ctypes.Structure): |
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120 _fields_ = (("bKeyDown", ctypes.c_int), |
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121 ("wRepeatCount", ctypes.c_ushort), |
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122 ("wVirtualKeyCode", ctypes.c_ushort), |
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123 ("wVirtualScanCode", ctypes.c_ushort), |
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124 ("UnicodeChar", ctypes.c_wchar), |
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125 ("dwControlKeyState", ctypes.c_uint)) |
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126 class INPUT_RECORD(ctypes.Structure): |
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127 _fields_ = (("EventType", ctypes.c_int), |
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128 ("KeyEvent", KEY_EVENT_RECORD)) |
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129 # Memory limits (currently) are not supported |
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130 def call(*args, **kwargs): |
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131 case = kwargs.pop('case') |
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132 try: |
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133 case.process = Popen(*args, **kwargs) |
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134 except OSError: |
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135 raise CannotStartTestee(sys.exc_info()[1]) |
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136 case.time_started = clock() |
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137 if not console_input: |
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138 if case.maxtime: |
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139 if WaitForSingleObject(case.process._handle, int(case.maxtime * 1000)) != WAIT_OBJECT_0: |
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140 raise TimeLimitExceeded |
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141 else: |
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142 case.process.wait() |
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143 else: |
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144 ir = INPUT_RECORD() |
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145 n = ctypes.c_int() |
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146 lpHandles = (ctypes.c_int * 2)(hStdin, case.process._handle) |
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147 if case.maxtime: |
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148 time_end = clock() + case.maxtime |
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149 while case.process.poll() is None: |
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150 remaining = time_end - clock() |
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151 if remaining > 0: |
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152 if WaitForMultipleObjects(2, lpHandles, False, int(remaining * 1000)) == WAIT_OBJECT_0: |
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153 ReadConsoleInputA(hStdin, ctypes.byref(ir), 1, ctypes.byref(n)) |
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154 if ir.EventType == 1 and ir.KeyEvent.bKeyDown and ir.KeyEvent.wVirtualKeyCode == 27: |
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155 raise CanceledByUser |
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156 else: |
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157 raise TimeLimitExceeded |
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158 else: |
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159 while case.process.poll() is None: |
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160 if WaitForMultipleObjects(2, lpHandles, False, INFINITE) == WAIT_OBJECT_0: |
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161 ReadConsoleInputA(hStdin, ctypes.byref(ir), 1, ctypes.byref(n)) |
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162 if ir.EventType == 1 and ir.KeyEvent.bKeyDown and ir.KeyEvent.wVirtualKeyCode == 27: |
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163 raise CanceledByUser |
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164 case.time_stopped = clock() |
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165 if not console_input: |
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166 try: |
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167 try: |
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168 from _subprocess import WaitForSingleObject |
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169 except ImportError: |
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170 import ctypes |
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171 WaitForSingleObject = ctypes.windll.kernel32.WaitForSingleObject |
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172 except (ImportError, AttributeError): |
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173 # TODO: move the default implementation here |
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174 call = None |
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175 else: |
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176 # Make SIGCHLD interrupt sleep() and select() |
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177 def bury_child(signum, frame): |
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178 try: |
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179 bury_child.case.time_stopped = clock() |
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180 except Exception: |
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181 pass |
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182 signal(SIGCHLD, bury_child) |
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183 |
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184 # If you want this to work, don't set any stdio argument to PIPE |
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185 def call_real(*args, **kwargs): |
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186 bury_child.case = case = kwargs.pop('case') |
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187 try: |
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188 case.process = Popen(*args, **kwargs) |
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189 except OSError: |
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190 raise CannotStartTestee(sys.exc_info()[1]) |
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191 case.time_started = clock() |
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192 if pause is None: |
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193 if case.maxtime: |
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194 time.sleep(case.maxtime) |
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195 if case.process.poll() is None: |
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196 raise TimeLimitExceeded |
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197 else: |
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198 case.process.wait() |
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199 else: |
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200 if not case.maxtime: |
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201 try: |
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202 while case.process.poll() is None: |
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203 if select((sys.stdin,), (), ())[0]: |
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204 if sys.stdin.read(1) == '\33': |
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205 raise CanceledByUser |
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206 except select_error: |
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207 if sys.exc_info()[1].args[0] != EINTR: |
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208 raise |
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209 else: |
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210 case.process.poll() |
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211 else: |
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212 time_end = clock() + case.maxtime |
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213 try: |
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214 while case.process.poll() is None: |
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215 remaining = time_end - clock() |
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216 if remaining > 0: |
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217 if select((sys.stdin,), (), (), remaining)[0]: |
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218 if sys.stdin.read(1) == '\33': |
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219 raise CanceledByUser |
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220 else: |
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221 raise TimeLimitExceeded |
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222 except select_error: |
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223 if sys.exc_info()[1].args[0] != EINTR: |
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224 raise |
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225 else: |
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226 case.process.poll() |
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227 del bury_child.case |
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228 def call(*args, **kwargs): |
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229 if 'preexec_fn' in kwargs: |
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230 try: |
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231 return call_real(*args, **kwargs) |
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232 except MemoryError: |
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233 # If there is not enough memory for the forked test.py, |
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234 # opt for silent dropping of the limit |
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235 # TODO: show a warning somewhere |
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236 del kwargs['preexec_fn'] |
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237 return call_real(*args, **kwargs) |
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238 else: |
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239 return call_real(*args, **kwargs) |
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240 |
| 22 | 241 |
| 21 | 242 __all__ = ('TestCase', 'load_problem', 'TestCaseNotPassed', |
| 22 | 243 'TimeLimitExceeded', 'CanceledByUser', 'WrongAnswer', |
| 244 'NonZeroExitCode', 'CannotStartTestee', | |
| 245 'CannotStartValidator', 'CannotReadOutputFile', | |
| 246 'CannotReadInputFile', 'CannotReadAnswerFile') | |
| 21 | 247 |
| 248 | |
| 249 | |
| 250 # Exceptions | |
| 251 | |
| 252 class TestCaseNotPassed(Exception): __slots__ = () | |
| 253 class TimeLimitExceeded(TestCaseNotPassed): __slots__ = () | |
| 22 | 254 class CanceledByUser(TestCaseNotPassed): __slots__ = () |
| 21 | 255 |
| 256 class WrongAnswer(TestCaseNotPassed): | |
| 257 __slots__ = 'comment' | |
| 258 def __init__(self, comment=''): | |
| 259 self.comment = comment | |
| 260 | |
| 261 class NonZeroExitCode(TestCaseNotPassed): | |
| 262 __slots__ = 'exitcode' | |
| 263 def __init__(self, exitcode): | |
| 264 self.exitcode = exitcode | |
| 265 | |
| 266 class ExceptionWrapper(TestCaseNotPassed): | |
| 267 __slots__ = 'upstream' | |
| 268 def __init__(self, upstream): | |
| 269 self.upstream = upstream | |
| 270 | |
| 271 class CannotStartTestee(ExceptionWrapper): __slots__ = () | |
| 272 class CannotStartValidator(ExceptionWrapper): __slots__ = () | |
| 273 class CannotReadOutputFile(ExceptionWrapper): __slots__ = () | |
| 274 class CannotReadInputFile(ExceptionWrapper): __slots__ = () | |
| 275 class CannotReadAnswerFile(ExceptionWrapper): __slots__ = () | |
| 276 | |
| 277 | |
| 278 | |
| 22 | 279 # Helper context managers |
| 280 | |
| 281 class CopyDeleting(object): | |
| 282 __slots__ = 'case', 'file', 'name' | |
| 283 | |
| 284 def __init__(self, case, file, name): | |
| 285 self.case = case | |
| 286 self.file = file | |
| 287 self.name = name | |
| 288 | |
| 289 def __enter__(self): | |
| 290 if self.name: | |
| 291 try: | |
| 292 self.file.copy(self.name) | |
| 293 except: | |
| 294 try: | |
| 295 self.__exit__(None, None, None) | |
| 296 except: | |
| 297 pass | |
| 298 raise | |
| 299 | |
| 300 def __exit__(self, exc_type, exc_val, exc_tb): | |
| 301 if self.name: | |
| 302 self.case.files_to_delete.append(self.name) | |
| 303 | |
| 304 | |
| 305 class Copying(object): | |
| 306 __slots__ = 'file', 'name' | |
| 307 | |
| 308 def __init__(self, file, name): | |
| 309 self.file = file | |
| 310 self.name = name | |
| 311 | |
| 312 def __enter__(self): | |
| 313 if self.name: | |
| 314 self.file.copy(self.name) | |
| 315 | |
| 316 def __exit__(self, exc_type, exc_val, exc_tb): | |
| 317 pass | |
| 318 | |
| 319 | |
| 320 | |
| 21 | 321 # Test case types |
| 16 | 322 |
| 323 class TestCase(object): | |
| 21 | 324 __slots__ = ('problem', 'id', 'isdummy', 'infile', 'outfile', 'points', |
| 325 'process', 'time_started', 'time_stopped', 'time_limit_string', | |
| 22 | 326 'realinname', 'realoutname', 'maxtime', 'maxmemory', |
| 327 'has_called_back', 'files_to_delete') | |
| 21 | 328 |
| 329 if ABCMeta: | |
| 330 __metaclass__ = ABCMeta | |
| 16 | 331 |
| 21 | 332 def __init__(case, prob, id, isdummy, points): |
| 16 | 333 case.problem = prob |
| 21 | 334 case.id = id |
| 335 case.isdummy = isdummy | |
| 336 case.points = points | |
| 337 case.maxtime = case.problem.config.maxtime | |
| 338 case.maxmemory = case.problem.config.maxmemory | |
| 339 if case.maxtime: | |
| 340 case.time_limit_string = '/%.3f' % case.maxtime | |
| 341 else: | |
| 342 case.time_limit_string = '' | |
| 343 if not isdummy: | |
| 344 case.realinname = case.problem.config.testcaseinname | |
| 345 case.realoutname = case.problem.config.testcaseoutname | |
| 346 else: | |
| 347 case.realinname = case.problem.config.dummyinname | |
| 348 case.realoutname = case.problem.config.dummyoutname | |
| 349 | |
| 350 @abstractmethod | |
| 351 def test(case): raise NotImplementedError | |
| 16 | 352 |
| 22 | 353 def __call__(case, callback): |
| 354 case.has_called_back = False | |
| 355 case.files_to_delete = [] | |
| 21 | 356 try: |
| 22 | 357 return case.test(callback) |
| 21 | 358 finally: |
| 22 | 359 now = clock() |
| 360 if not getattr(case, 'time_started', None): | |
| 361 case.time_started = case.time_stopped = now | |
| 362 elif not getattr(case, 'time_stopped', None): | |
| 363 case.time_stopped = now | |
| 364 if not case.has_called_back: | |
| 365 callback() | |
| 21 | 366 case.cleanup() |
| 367 | |
| 368 def cleanup(case): | |
| 369 #if getattr(case, 'infile', None): | |
| 370 # case.infile.close() | |
| 371 #if getattr(case, 'outfile', None): | |
| 372 # case.outfile.close() | |
| 373 if getattr(case, 'process', None): | |
| 374 # Try killing after three unsuccessful TERM attempts in a row | |
| 375 # (except on Windows, where TERMing is killing) | |
| 376 for i in range(3): | |
| 377 try: | |
| 378 try: | |
| 379 case.process.terminate() | |
| 380 except AttributeError: | |
| 381 # Python 2.5 | |
| 382 if TerminateProcess and hasattr(proc, '_handle'): | |
| 383 # Windows API | |
| 384 TerminateProcess(proc._handle, 1) | |
| 385 else: | |
| 386 # POSIX | |
| 387 os.kill(proc.pid, SIGTERM) | |
| 388 except Exception: | |
| 389 time.sleep(0) | |
| 390 case.process.poll() | |
| 391 else: | |
| 22 | 392 case.process.wait() |
| 21 | 393 break |
| 394 else: | |
| 395 # If killing the process is unsuccessful three times in a row, | |
| 396 # just silently stop trying | |
| 397 for i in range(3): | |
| 398 try: | |
| 399 try: | |
| 400 case.process.kill() | |
| 401 except AttributeError: | |
| 402 # Python 2.5 | |
| 403 if TerminateProcess and hasattr(proc, '_handle'): | |
| 404 # Windows API | |
| 405 TerminateProcess(proc._handle, 1) | |
| 406 else: | |
| 407 # POSIX | |
| 408 os.kill(proc.pid, SIGKILL) | |
| 409 except Exception: | |
| 410 time.sleep(0) | |
| 411 case.process.poll() | |
| 412 else: | |
| 22 | 413 case.process.wait() |
| 21 | 414 break |
| 22 | 415 if case.files_to_delete: |
| 416 for name in case.files_to_delete: | |
| 417 try: | |
| 418 os.remove(name) | |
| 419 except Exception: | |
| 420 # It can't be helped | |
| 421 pass | |
| 21 | 422 |
| 423 def open_infile(case): | |
| 424 try: | |
| 425 case.infile = files.File('/'.join((case.problem.name, case.realinname.replace('$', case.id)))) | |
| 426 except IOError: | |
| 427 e = sys.exc_info()[1] | |
| 428 raise CannotReadInputFile(e) | |
| 429 | |
| 430 def open_outfile(case): | |
| 431 try: | |
| 432 case.outfile = files.File('/'.join((case.problem.name, case.realoutname.replace('$', case.id)))) | |
| 433 except IOError: | |
| 434 e = sys.exc_info()[1] | |
| 435 raise CannotReadAnswerFile(e) | |
| 436 | |
| 16 | 437 |
| 21 | 438 class ValidatedTestCase(TestCase): |
| 439 __slots__ = 'validator' | |
| 440 | |
| 441 def __init__(case, *args): | |
| 442 TestCase.__init__(case, *args) | |
| 443 if not case.problem.config.tester: | |
| 444 case.validator = None | |
| 445 else: | |
| 446 case.validator = case.problem.config.tester | |
| 447 | |
| 448 def validate(case, output): | |
| 449 if not case.validator: | |
| 450 # Compare the output with the reference output | |
| 451 case.open_outfile() | |
| 452 with case.outfile.open() as refoutput: | |
|
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453 for line, refline in zip_longest(output, refoutput): |
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454 if refline is not None and not isinstance(refline, basestring): |
| 21 | 455 line = bytes(line, sys.getdefaultencoding()) |
| 456 if line != refline: | |
| 22 | 457 raise WrongAnswer |
|
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458 return 1 |
| 21 | 459 elif callable(case.validator): |
| 460 return case.validator(output) | |
| 461 else: | |
| 462 # Call the validator program | |
| 463 output.close() | |
| 23 | 464 if case.problem.config.ansname: |
| 465 case.open_outfile() | |
| 466 case.outfile.copy(case.problem.config.ansname) | |
|
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467 try: |
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468 case.process = Popen(case.validator, stdin=devnull, stdout=PIPE, stderr=STDOUT, universal_newlines=True, bufsize=-1) |
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469 except OSError: |
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470 raise CannotStartValidator(sys.exc_info()[1]) |
| 21 | 471 comment = case.process.communicate()[0].strip() |
| 26 | 472 match = re.match(r'(?i)(ok|(?:correct|wrong)(?:(?:\s|_)*answer)?)(?:$|\s+|[.,!:]+\s*)', comment) |
| 21 | 473 if match: |
| 474 comment = comment[match.end():] | |
| 475 if not case.problem.config.maxexitcode: | |
| 476 if case.process.returncode: | |
| 477 raise WrongAnswer(comment) | |
| 478 else: | |
|
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479 return 1, comment |
| 21 | 480 else: |
|
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481 return case.process.returncode / case.problem.config.maxexitcode, comment |
| 21 | 482 |
| 483 | |
| 484 class BatchTestCase(ValidatedTestCase): | |
| 485 __slots__ = () | |
| 486 | |
| 22 | 487 def test(case, callback): |
| 488 init_canceled() | |
| 21 | 489 if sys.platform == 'win32' or not case.maxmemory: |
| 490 preexec_fn = None | |
| 491 else: | |
| 492 def preexec_fn(): | |
| 493 try: | |
| 494 import resource | |
| 495 maxmemory = int(case.maxmemory * 1048576) | |
| 496 resource.setrlimit(resource.RLIMIT_AS, (maxmemory, maxmemory)) | |
| 497 # I would also set a CPU time limit but I do not want the time | |
| 498 # that passes between the calls to fork and exec to be counted in | |
| 499 except MemoryError: | |
| 500 # We do not have enough memory for ourselves; | |
| 501 # let the parent know about this | |
| 502 raise | |
| 503 except Exception: | |
| 504 # Well, at least we tried | |
| 505 pass | |
| 506 case.open_infile() | |
| 507 case.time_started = None | |
| 508 if case.problem.config.stdio: | |
| 54 | 509 if options.erase and not case.validator or not case.problem.config.inname: |
| 22 | 510 # TODO: re-use the same file name if possible |
| 21 | 511 # FIXME: 2.5 lacks the delete parameter |
| 512 with tempfile.NamedTemporaryFile(delete=False) as f: | |
| 22 | 513 inputdatafname = f.name |
|
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514 contextmgr = CopyDeleting(case, case.infile, inputdatafname) |
| 21 | 515 else: |
| 516 inputdatafname = case.problem.config.inname | |
|
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517 contextmgr = Copying(case.infile, inputdatafname) |
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518 with contextmgr: |
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519 # FIXME: this U doesn't do anything good for the child process, does it? |
| 22 | 520 with open(inputdatafname, 'rU') as infile: |
| 521 with tempfile.TemporaryFile('w+') if options.erase and not case.validator else open(case.problem.config.outname, 'w+') as outfile: | |
|
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522 if call is not None: |
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523 call(case.problem.config.path, case=case, stdin=infile, stdout=outfile, stderr=devnull, universal_newlines=True, bufsize=-1, preexec_fn=preexec_fn) |
|
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524 else: |
| 22 | 525 try: |
|
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526 try: |
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527 case.process = Popen(case.problem.config.path, stdin=infile, stdout=outfile, stderr=devnull, universal_newlines=True, bufsize=-1, preexec_fn=preexec_fn) |
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528 except MemoryError: |
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529 # If there is not enough memory for the forked test.py, |
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530 # opt for silent dropping of the limit |
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531 # TODO: show a warning somewhere |
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532 case.process = Popen(case.problem.config.path, stdin=infile, stdout=outfile, stderr=devnull, universal_newlines=True, bufsize=-1) |
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533 except OSError: |
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534 raise CannotStartTestee(sys.exc_info()[1]) |
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535 case.time_started = clock() |
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536 time_next_check = case.time_started + .15 |
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537 if not case.maxtime: |
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538 while True: |
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539 exitcode, now = case.process.poll(), clock() |
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540 if exitcode is not None: |
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541 case.time_stopped = now |
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542 break |
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543 # For some reason (probably Microsoft's fault), |
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544 # msvcrt.kbhit() is slow as hell |
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545 else: |
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546 if now >= time_next_check: |
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547 if canceled(): |
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548 raise CanceledByUser |
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549 else: |
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550 time_next_check = now + .15 |
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551 time.sleep(.001) |
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552 else: |
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553 time_end = case.time_started + case.maxtime |
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554 while True: |
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555 exitcode, now = case.process.poll(), clock() |
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556 if exitcode is not None: |
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557 case.time_stopped = now |
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558 break |
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559 elif now >= time_end: |
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560 raise TimeLimitExceeded |
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561 else: |
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562 if now >= time_next_check: |
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563 if canceled(): |
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564 raise CanceledByUser |
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565 else: |
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566 time_next_check = now + .15 |
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567 time.sleep(.001) |
|
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568 if config.globalconf.force_zero_exitcode and case.process.returncode or case.process.returncode < 0: |
| 22 | 569 raise NonZeroExitCode(case.process.returncode) |
| 570 callback() | |
| 571 case.has_called_back = True | |
| 572 outfile.seek(0) | |
| 573 return case.validate(outfile) | |
| 21 | 574 else: |
| 22 | 575 case.infile.copy(case.problem.config.inname) |
|
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576 if call is not None: |
|
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577 call(case.problem.config.path, case=case, stdin=devnull, stdout=devnull, stderr=STDOUT, preexec_fn=preexec_fn) |
|
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578 else: |
| 21 | 579 try: |
|
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580 try: |
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581 case.process = Popen(case.problem.config.path, stdin=devnull, stdout=devnull, stderr=STDOUT, preexec_fn=preexec_fn) |
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582 except MemoryError: |
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583 # If there is not enough memory for the forked test.py, |
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584 # opt for silent dropping of the limit |
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585 # TODO: show a warning somewhere |
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586 case.process = Popen(case.problem.config.path, stdin=devnull, stdout=devnull, stderr=STDOUT) |
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587 except OSError: |
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588 raise CannotStartTestee(sys.exc_info()[1]) |
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589 case.time_started = clock() |
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590 time_next_check = case.time_started + .15 |
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591 if not case.maxtime: |
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592 while True: |
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593 exitcode, now = case.process.poll(), clock() |
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594 if exitcode is not None: |
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595 case.time_stopped = now |
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596 break |
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597 else: |
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598 if now >= time_next_check: |
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599 if canceled(): |
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600 raise CanceledByUser |
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601 else: |
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602 time_next_check = now + .15 |
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603 time.sleep(.001) |
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604 else: |
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605 time_end = case.time_started + case.maxtime |
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606 while True: |
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607 exitcode, now = case.process.poll(), clock() |
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608 if exitcode is not None: |
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609 case.time_stopped = now |
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610 break |
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611 elif now >= time_end: |
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612 raise TimeLimitExceeded |
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613 else: |
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614 if now >= time_next_check: |
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615 if canceled(): |
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616 raise CanceledByUser |
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617 else: |
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618 time_next_check = now + .15 |
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619 time.sleep(.001) |
|
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620 if config.globalconf.force_zero_exitcode and case.process.returncode or case.process.returncode < 0: |
| 21 | 621 raise NonZeroExitCode(case.process.returncode) |
| 22 | 622 callback() |
| 623 case.has_called_back = True | |
| 21 | 624 with open(case.problem.config.outname, 'rU') as output: |
| 625 return case.validate(output) | |
| 626 | |
| 627 | |
| 628 # This is the only test case type not executing any programs to be tested | |
| 629 class OutputOnlyTestCase(ValidatedTestCase): | |
| 630 __slots__ = () | |
| 631 def cleanup(case): pass | |
| 632 | |
| 633 class BestOutputTestCase(ValidatedTestCase): | |
| 634 __slots__ = () | |
| 635 | |
| 636 # This is the only test case type executing two programs simultaneously | |
| 637 class ReactiveTestCase(TestCase): | |
| 638 __slots__ = () | |
| 639 # The basic idea is to launch the program to be tested and the grader | |
| 640 # and to pipe their standard I/O from and to each other, | |
| 641 # and then to capture the grader's exit code and use it | |
| 26 | 642 # like the exit code of an output validator is used. |
| 21 | 643 |
| 644 | |
| 645 def load_problem(prob, _types={'batch' : BatchTestCase, | |
| 646 'outonly' : OutputOnlyTestCase, | |
| 647 'bestout' : BestOutputTestCase, | |
| 648 'reactive': ReactiveTestCase}): | |
|
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649 # We will need to iterate over these configuration variables twice |
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650 try: |
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651 len(prob.config.dummies) |
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652 except Exception: |
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653 prob.config.dummies = tuple(prob.config.dummies) |
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654 try: |
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655 len(prob.config.tests) |
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656 except Exception: |
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657 prob.config.tests = tuple(prob.config.tests) |
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658 |
| 23 | 659 if options.legacy: |
| 660 prob.config.usegroups = False | |
| 58 | 661 newtests = [] |
| 23 | 662 for i, name in enumerate(prob.config.tests): |
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663 # Same here; we'll need to iterate over them twice |
| 23 | 664 try: |
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665 l = len(name) |
| 23 | 666 except Exception: |
| 667 try: | |
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668 name = tuple(name) |
| 23 | 669 except TypeError: |
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670 name = (name,) |
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671 l = len(name) |
| 58 | 672 if l > 1: |
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673 prob.config.usegroups = True |
| 58 | 674 newtests.append(name) |
| 675 if prob.config.usegroups: | |
| 676 prob.config.tests = newtests | |
| 677 del newtests | |
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678 |
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679 # First get prob.cache.padoutput right, |
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680 # then yield the actual test cases |
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681 for i in prob.config.dummies: |
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682 s = 'sample ' + str(i).zfill(prob.config.paddummies) |
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683 prob.cache.padoutput = max(prob.cache.padoutput, len(s)) |
| 16 | 684 if prob.config.usegroups: |
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685 for group in prob.config.tests: |
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686 for i in group: |
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687 s = str(i).zfill(prob.config.padtests) |
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688 prob.cache.padoutput = max(prob.cache.padoutput, len(s)) |
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689 for i in prob.config.dummies: |
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690 s = str(i).zfill(prob.config.paddummies) |
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691 yield _types[prob.config.kind](prob, s, True, 0) |
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692 for group in prob.config.tests: |
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693 yield problem.TestGroup() |
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694 for i in group: |
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695 s = str(i).zfill(prob.config.padtests) |
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696 yield _types[prob.config.kind](prob, s, False, prob.config.pointmap.get(i, prob.config.pointmap.get(None, prob.config.maxexitcode if prob.config.maxexitcode else 1))) |
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697 yield problem.test_context_end |
| 16 | 698 else: |
| 699 for i in prob.config.tests: | |
| 21 | 700 s = str(i).zfill(prob.config.padtests) |
| 701 prob.cache.padoutput = max(prob.cache.padoutput, len(s)) | |
| 702 for i in prob.config.dummies: | |
| 703 s = str(i).zfill(prob.config.paddummies) | |
| 704 yield _types[prob.config.kind](prob, s, True, 0) | |
| 705 for i in prob.config.tests: | |
| 706 s = str(i).zfill(prob.config.padtests) | |
| 707 yield _types[prob.config.kind](prob, s, False, prob.config.pointmap.get(i, prob.config.pointmap.get(None, prob.config.maxexitcode if prob.config.maxexitcode else 1))) |