text: """Tests for scripts in the Tools directory.
  
  This file contains regression tests for some of the scripts found in the
  Tools directory of a Python checkout or tarball, such as reindent.py.
  """
  
  import os
  import sys
  import importlib.machinery
  import unittest
  from unittest import mock
  import sysconfig
  import tempfile
  from test import support
  from test.script_helper import assert_python_ok
  
  if not sysconfig.is_python_build():
      # XXX some installers do contain the tools, should we detect that
      # and run the tests in that case too?
      raise unittest.SkipTest('test irrelevant for an installed Python')
  
  srcdir = sysconfig.get_config_var('projectbase')
  basepath = os.path.join(os.getcwd(), srcdir, 'Tools')
  scriptsdir = os.path.join(basepath, 'scripts')
  
  
  class ReindentTests(unittest.TestCase):
      script = os.path.join(scriptsdir, 'reindent.py')
  
      def test_noargs(self):
          assert_python_ok(self.script)
  
      def test_help(self):
          rc, out, err = assert_python_ok(self.script, '-h')
          self.assertEqual(out, b'')
          self.assertGreater(err, b'')
  
  
  class TestSundryScripts(unittest.TestCase):
      # At least make sure the rest don't have syntax errors.  When tests are
      # added for a script it should be added to the whitelist below.
  
      # scripts that have independent tests.
      whitelist = ['reindent.py', 'pdeps.py', 'gprof2html']
      # scripts that can't be imported without running
      blacklist = ['make_ctype.py']
      # scripts that use windows-only modules
      windows_only = ['win_add2path.py']
      # blacklisted for other reasons
      other = ['analyze_dxp.py']
  
      skiplist = blacklist + whitelist + windows_only + other
  
      def setUp(self):
          cm = support.DirsOnSysPath(scriptsdir)
          cm.__enter__()
          self.addCleanup(cm.__exit__)
  
      def test_sundry(self):
          for fn in os.listdir(scriptsdir):
              if fn.endswith('.py') and fn not in self.skiplist:
                  __import__(fn[:-3])
  
      @unittest.skipIf(sys.platform != "win32", "Windows-only test")
      def test_sundry_windows(self):
          for fn in self.windows_only:
              __import__(fn[:-3])
  
      @unittest.skipIf(not support.threading, "test requires _thread module")
      def test_analyze_dxp_import(self):
          if hasattr(sys, 'getdxp'):
              import analyze_dxp
          else:
              with self.assertRaises(RuntimeError):
                  import analyze_dxp
  
  
  class PdepsTests(unittest.TestCase):
  
      @classmethod
      def setUpClass(self):
          path = os.path.join(scriptsdir, 'pdeps.py')
          loader = importlib.machinery.SourceFileLoader('pdeps', path)
          self.pdeps = loader.load_module()
  
      @classmethod
      def tearDownClass(self):
          if 'pdeps' in sys.modules:
              del sys.modules['pdeps']
  
      def test_process_errors(self):
          # Issue #14492: m_import.match(line) can be None.
          with tempfile.TemporaryDirectory() as tmpdir:
              fn = os.path.join(tmpdir, 'foo')
              with open(fn, 'w') as stream:
                  stream.write("#!/this/will/fail")
              self.pdeps.process(fn, {})
  
      def test_inverse_attribute_error(self):
          # Issue #14492: this used to fail with an AttributeError.
          self.pdeps.inverse({'a': []})
  
  
  class Gprof2htmlTests(unittest.TestCase):
  
      def setUp(self):
          path = os.path.join(scriptsdir, 'gprof2html.py')
          loader = importlib.machinery.SourceFileLoader('gprof2html', path)
          self.gprof = loader.load_module()
          oldargv = sys.argv
          def fixup():
              sys.argv = oldargv
          self.addCleanup(fixup)
          sys.argv = []
  
      def test_gprof(self):
          # Issue #14508: this used to fail with an NameError.
          with mock.patch.object(self.gprof, 'webbrowser') as wmock, \
                  tempfile.TemporaryDirectory() as tmpdir:
              fn = os.path.join(tmpdir, 'abc')
              open(fn, 'w').close()
              sys.argv = ['gprof2html', fn]
              self.gprof.main()
          self.assertTrue(wmock.open.called)
  
  
  # Run the tests in Tools/parser/test_unparse.py
  with support.DirsOnSysPath(os.path.join(basepath, 'parser')):
      from test_unparse import UnparseTestCase
      from test_unparse import DirectoryTestCase
  
  
  def test_main():
      support.run_unittest(*[obj for obj in globals().values()
                                 if isinstance(obj, type)])
  
  
  if __name__ == '__main__':
      unittest.main()
  