# Copyright 2008 the V8 project authors. All rights reserved.
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# 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.
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#       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
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

import test
import os
import shutil
from shutil import rmtree
from os import mkdir
from glob import glob
from os.path import join, dirname, exists
import re


FLAGS_PATTERN = re.compile(r"//\s+Flags:(.*)")
FILES_PATTERN = re.compile(r"//\s+Files:(.*)")


class SimpleTestCase(test.TestCase):

  def __init__(self, path, file, arch, mode, context, config, additional=[]):
    super(SimpleTestCase, self).__init__(context, path, arch, mode)
    self.file = file
    self.config = config
    self.arch = arch
    self.mode = mode
    self.tmpdir = join(dirname(self.config.root), 'tmp')
    self.additional_flags = additional

  def GetTmpDir(self):
    return "%s.%d" % (self.tmpdir, self.thread_id)

  
  def AfterRun(self, result):
    # delete the whole tmp dir
    try:
      rmtree(self.GetTmpDir())
    except:
      pass
    # make it again.
    try:
      mkdir(self.GetTmpDir())
    except:
      pass

  def BeforeRun(self):
    # delete the whole tmp dir
    try:
      rmtree(self.GetTmpDir())
    except:
      pass
    # make it again.
    # intermittently fails on win32, so keep trying
    while not os.path.exists(self.GetTmpDir()):
      try:
        mkdir(self.GetTmpDir())
      except:
        pass
  
  def GetLabel(self):
    return "%s %s" % (self.mode, self.GetName())

  def GetName(self):
    return self.path[-1]

  def GetCommand(self):
    result = [self.config.context.GetVm(self.arch, self.mode)]
    source = open(self.file).read()
    flags_match = FLAGS_PATTERN.search(source)
    if flags_match:
      result += flags_match.group(1).strip().split()
    files_match = FILES_PATTERN.search(source);
    additional_files = []
    if files_match:
      additional_files += files_match.group(1).strip().split()
    for a_file in additional_files:
      result.append(join(dirname(self.config.root), '..', a_file))

    if self.additional_flags:
      result += self.additional_flags

    result += [self.file]

    return result

  def GetSource(self):
    return open(self.file).read()

class SimpleTestConfiguration(test.TestConfiguration):

  def __init__(self, context, root, section, additional=[]):
    super(SimpleTestConfiguration, self).__init__(context, root)
    self.section = section
    self.additional_flags = additional

  def Ls(self, path):
    def SelectTest(name):
      return name.startswith('test-') and name.endswith('.js')
    return [f[:-3] for f in os.listdir(path) if SelectTest(f)]

  def ListTests(self, current_path, path, arch, mode):
    all_tests = [current_path + [t] for t in self.Ls(join(self.root))]
    result = []
    for test in all_tests:
      if self.Contains(path, test):
        file_path = join(self.root, reduce(join, test[1:], "") + ".js")
        result.append(SimpleTestCase(test, file_path, arch, mode, self.context,
                                     self, self.additional_flags))
    return result

  def GetBuildRequirements(self):
    return ['sample', 'sample=shell']

  def GetTestStatus(self, sections, defs):
    status_file = join(self.root, '%s.status' % (self.section))
    if exists(status_file):
      test.ReadConfigurationInto(status_file, sections, defs)

class ParallelTestConfiguration(SimpleTestConfiguration):
  def __init__(self, context, root, section, additional=[]):
    super(ParallelTestConfiguration, self).__init__(context, root, section,
                                                    additional)

  def ListTests(self, current_path, path, arch, mode):
    result = super(ParallelTestConfiguration, self).ListTests(
         current_path, path, arch, mode)
    for test in result:
      test.parallel = True
    return result

class AddonTestConfiguration(SimpleTestConfiguration):
  def __init__(self, context, root, section, additional=[]):
    super(AddonTestConfiguration, self).__init__(context, root, section)

  def Ls(self, path):
    def SelectTest(name):
      return name.endswith('.js')

    result = []
    for subpath in os.listdir(path):
      if os.path.isdir(join(path, subpath)):
        for f in os.listdir(join(path, subpath)):
          if SelectTest(f):
            result.append([subpath, f[:-3]])
    return result

  def ListTests(self, current_path, path, arch, mode):
    all_tests = [current_path + t for t in self.Ls(join(self.root))]
    result = []
    for test in all_tests:
      if self.Contains(path, test):
        file_path = join(self.root, reduce(join, test[1:], "") + ".js")
        result.append(
            SimpleTestCase(test, file_path, arch, mode, self.context, self))
    return result
