# Copyright 2011 the V8 project authors. All rights reserved.
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# modification, are permitted provided that the following conditions are
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import os

from testrunner.local import testsuite
from testrunner.objects import testcase


class PreparserTestSuite(testsuite.TestSuite):
  def __init__(self, name, root):
    super(PreparserTestSuite, self).__init__(name, root)

  def shell(self):
    return "d8"

  def _ParsePythonTestTemplates(self, result, filename):
    pathname = os.path.join(self.root, filename + ".pyt")
    def Test(name, source, expectation, extra_flags=[]):
      source = source.replace("\n", " ")
      testname = os.path.join(filename, name)
      flags = ["-e", source]
      if expectation:
        flags += ["--throws"]
      flags += extra_flags
      test = testcase.TestCase(self, testname, flags=flags)
      result.append(test)
    def Template(name, source):
      def MkTest(replacement, expectation):
        testname = name
        testsource = source
        for key in replacement.keys():
          testname = testname.replace("$" + key, replacement[key]);
          testsource = testsource.replace("$" + key, replacement[key]);
        Test(testname, testsource, expectation)
      return MkTest
    execfile(pathname, {"Test": Test, "Template": Template})

  def ListTests(self, context):
    result = []

    # Find all .pyt files in this directory.
    filenames = [f[:-4] for f in os.listdir(self.root) if f.endswith(".pyt")]
    filenames.sort()
    for f in filenames:
      self._ParsePythonTestTemplates(result, f)
    return result

  def GetFlagsForTestCase(self, testcase, context):
    return testcase.flags

  def GetSourceForTest(self, testcase):
    assert testcase.flags[0] == "-e"
    return testcase.flags[1]

  def _VariantGeneratorFactory(self):
    return testsuite.StandardVariantGenerator


def GetSuite(name, root):
  return PreparserTestSuite(name, root)
