# Copyright 2011 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.
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#       copyright notice, this list of conditions and the following
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#       with the distribution.
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#       contributors may be used to endorse or promote products derived
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import test
import os
from os.path import join, split

def IsNumber(string):
  try:
    float(string)
    return True
  except ValueError:
    return False


class BenchmarkTestCase(test.TestCase):

  def __init__(self, path, context, mode):
    super(BenchmarkTestCase, self).__init__(context, split(path), mode)
    self.root = path

  def GetLabel(self):
    return '%s benchmark %s' % (self.mode, self.GetName())

  def IsFailureOutput(self, output):
    if output.exit_code != 0:
      return True
    lines = output.stdout.splitlines()
    for line in lines:
      colon_index = line.find(':')
      if colon_index >= 0:
        if not IsNumber(line[colon_index+1:].strip()):
          return True
    return False

  def GetCommand(self):
    result = self.context.GetVmCommand(self, self.mode)
    result.append(join(self.root, 'run.js'))
    return result

  def GetName(self):
    return 'V8'

  def BeforeRun(self):
    os.chdir(self.root)

  def AfterRun(self, result):
    os.chdir(self.context.buildspace)

  def GetSource(self):
    return open(join(self.root, 'run.js')).read()

  def GetCustomFlags(self, mode):
    return []


class BenchmarkTestConfiguration(test.TestConfiguration):

  def __init__(self, context, root):
    super(BenchmarkTestConfiguration, self).__init__(context, root)

  def ListTests(self, current_path, path, mode, variant_flags):
    path = self.context.workspace
    path = join(path, 'benchmarks')
    test = BenchmarkTestCase(path, self.context, mode)
    return [test]

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

  def GetTestStatus(self, sections, defs):
    pass

def GetConfiguration(context, root):
  return BenchmarkTestConfiguration(context, root)
