text: # Copyright 2008 the V8 project authors. 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 itertools
  import os
  import re
  
  from testrunner.local import testsuite
  from testrunner.local import utils
  from testrunner.objects import testcase
  
  
  FLAGS_PATTERN = re.compile(r"//\s+Flags:(.*)")
  INVALID_FLAGS = ["--enable-slow-asserts"]
  MODULE_PATTERN = re.compile(r"^// MODULE$", flags=re.MULTILINE)
  
  
  class MessageTestSuite(testsuite.TestSuite):
    def __init__(self, name, root):
      super(MessageTestSuite, self).__init__(name, root)
  
    def ListTests(self, context):
      tests = []
      for dirname, dirs, files in os.walk(self.root):
        for dotted in [x for x in dirs if x.startswith('.')]:
          dirs.remove(dotted)
        dirs.sort()
        files.sort()
        for filename in files:
          if filename.endswith(".js"):
            fullpath = os.path.join(dirname, filename)
            relpath = fullpath[len(self.root) + 1 : -3]
            testname = relpath.replace(os.path.sep, "/")
            test = testcase.TestCase(self, testname)
            tests.append(test)
      return tests
  
    def CreateVariantGenerator(self, variants):
      return super(MessageTestSuite, self).CreateVariantGenerator(
          variants + ["preparser"])
  
    def GetFlagsForTestCase(self, testcase, context):
      source = self.GetSourceForTest(testcase)
      result = []
      flags_match = re.findall(FLAGS_PATTERN, source)
      for match in flags_match:
        result += match.strip().split()
      result += context.mode_flags
      if MODULE_PATTERN.search(source):
        result.append("--module")
      result = [x for x in result if x not in INVALID_FLAGS]
      result.append(os.path.join(self.root, testcase.path + ".js"))
      return testcase.flags + result
  
    def GetSourceForTest(self, testcase):
      filename = os.path.join(self.root, testcase.path + self.suffix())
      with open(filename) as f:
        return f.read()
  
    def _IgnoreLine(self, string):
      """Ignore empty lines, valgrind output, Android output."""
      if not string: return True
      if not string.strip(): return True
      return (string.startswith("==") or string.startswith("**") or
              string.startswith("ANDROID") or
              # These five patterns appear in normal Native Client output.
              string.startswith("DEBUG MODE ENABLED") or
              string.startswith("tools/nacl-run.py") or
              string.find("BYPASSING ALL ACL CHECKS") > 0 or
              string.find("Native Client module will be loaded") > 0 or
              string.find("NaClHostDescOpen:") > 0)
  
    def IsFailureOutput(self, testcase):
      output = testcase.output
      testpath = testcase.path
      expected_path = os.path.join(self.root, testpath + ".out")
      expected_lines = []
      # Can't use utils.ReadLinesFrom() here because it strips whitespace.
      with open(expected_path) as f:
        for line in f:
          if line.startswith("#") or not line.strip(): continue
          expected_lines.append(line)
      raw_lines = output.stdout.splitlines()
      actual_lines = [ s for s in raw_lines if not self._IgnoreLine(s) ]
      env = { "basename": os.path.basename(testpath + ".js") }
      if len(expected_lines) != len(actual_lines):
        return True
      for (expected, actual) in itertools.izip_longest(
          expected_lines, actual_lines, fillvalue=''):
        pattern = re.escape(expected.rstrip() % env)
        pattern = pattern.replace("\\*", ".*")
        pattern = "^%s$" % pattern
        if not re.match(pattern, actual):
          return True
      return False
  
    def StripOutputForTransmit(self, testcase):
      pass
  
  
  def GetSuite(name, root):
    return MessageTestSuite(name, root)
  