text: "Test run, coverage 49%."
  
  from idlelib import run
  import unittest
  from unittest import mock
  from idlelib.idle_test.mock_idle import Func
  from test.support import captured_output, captured_stderr
  
  import io
  import sys
  
  
  class RunTest(unittest.TestCase):
  
      def test_print_exception_unhashable(self):
          class UnhashableException(Exception):
              def __eq__(self, other):
                  return True
  
          ex1 = UnhashableException('ex1')
          ex2 = UnhashableException('ex2')
          try:
              raise ex2 from ex1
          except UnhashableException:
              try:
                  raise ex1
              except UnhashableException:
                  with captured_stderr() as output:
                      with mock.patch.object(run,
                                             'cleanup_traceback') as ct:
                          ct.side_effect = lambda t, e: t
                          run.print_exception()
  
          tb = output.getvalue().strip().splitlines()
          self.assertEqual(11, len(tb))
          self.assertIn('UnhashableException: ex2', tb[3])
          self.assertIn('UnhashableException: ex1', tb[10])
  
  
  # StdioFile tests.
  
  class S(str):
      def __str__(self):
          return '%s:str' % type(self).__name__
      def __unicode__(self):
          return '%s:unicode' % type(self).__name__
      def __len__(self):
          return 3
      def __iter__(self):
          return iter('abc')
      def __getitem__(self, *args):
          return '%s:item' % type(self).__name__
      def __getslice__(self, *args):
          return '%s:slice' % type(self).__name__
  
  
  class MockShell:
      def __init__(self):
          self.reset()
      def write(self, *args):
          self.written.append(args)
      def readline(self):
          return self.lines.pop()
      def close(self):
          pass
      def reset(self):
          self.written = []
      def push(self, lines):
          self.lines = list(lines)[::-1]
  
  
  class StdInputFilesTest(unittest.TestCase):
  
      def test_misc(self):
          shell = MockShell()
          f = run.StdInputFile(shell, 'stdin')
          self.assertIsInstance(f, io.TextIOBase)
          self.assertEqual(f.encoding, 'utf-8')
          self.assertEqual(f.errors, 'strict')
          self.assertIsNone(f.newlines)
          self.assertEqual(f.name, '<stdin>')
          self.assertFalse(f.closed)
          self.assertTrue(f.isatty())
          self.assertTrue(f.readable())
          self.assertFalse(f.writable())
          self.assertFalse(f.seekable())
  
      def test_unsupported(self):
          shell = MockShell()
          f = run.StdInputFile(shell, 'stdin')
          self.assertRaises(OSError, f.fileno)
          self.assertRaises(OSError, f.tell)
          self.assertRaises(OSError, f.seek, 0)
          self.assertRaises(OSError, f.write, 'x')
          self.assertRaises(OSError, f.writelines, ['x'])
  
      def test_read(self):
          shell = MockShell()
          f = run.StdInputFile(shell, 'stdin')
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.read(), 'one\ntwo\n')
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.read(-1), 'one\ntwo\n')
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.read(None), 'one\ntwo\n')
          shell.push(['one\n', 'two\n', 'three\n', ''])
          self.assertEqual(f.read(2), 'on')
          self.assertEqual(f.read(3), 'e\nt')
          self.assertEqual(f.read(10), 'wo\nthree\n')
  
          shell.push(['one\n', 'two\n'])
          self.assertEqual(f.read(0), '')
          self.assertRaises(TypeError, f.read, 1.5)
          self.assertRaises(TypeError, f.read, '1')
          self.assertRaises(TypeError, f.read, 1, 1)
  
      def test_readline(self):
          shell = MockShell()
          f = run.StdInputFile(shell, 'stdin')
          shell.push(['one\n', 'two\n', 'three\n', 'four\n'])
          self.assertEqual(f.readline(), 'one\n')
          self.assertEqual(f.readline(-1), 'two\n')
          self.assertEqual(f.readline(None), 'three\n')
          shell.push(['one\ntwo\n'])
          self.assertEqual(f.readline(), 'one\n')
          self.assertEqual(f.readline(), 'two\n')
          shell.push(['one', 'two', 'three'])
          self.assertEqual(f.readline(), 'one')
          self.assertEqual(f.readline(), 'two')
          shell.push(['one\n', 'two\n', 'three\n'])
          self.assertEqual(f.readline(2), 'on')
          self.assertEqual(f.readline(1), 'e')
          self.assertEqual(f.readline(1), '\n')
          self.assertEqual(f.readline(10), 'two\n')
  
          shell.push(['one\n', 'two\n'])
          self.assertEqual(f.readline(0), '')
          self.assertRaises(TypeError, f.readlines, 1.5)
          self.assertRaises(TypeError, f.readlines, '1')
          self.assertRaises(TypeError, f.readlines, 1, 1)
  
      def test_readlines(self):
          shell = MockShell()
          f = run.StdInputFile(shell, 'stdin')
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.readlines(), ['one\n', 'two\n'])
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.readlines(-1), ['one\n', 'two\n'])
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.readlines(None), ['one\n', 'two\n'])
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.readlines(0), ['one\n', 'two\n'])
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.readlines(3), ['one\n'])
          shell.push(['one\n', 'two\n', ''])
          self.assertEqual(f.readlines(4), ['one\n', 'two\n'])
  
          shell.push(['one\n', 'two\n', ''])
          self.assertRaises(TypeError, f.readlines, 1.5)
          self.assertRaises(TypeError, f.readlines, '1')
          self.assertRaises(TypeError, f.readlines, 1, 1)
  
      def test_close(self):
          shell = MockShell()
          f = run.StdInputFile(shell, 'stdin')
          shell.push(['one\n', 'two\n', ''])
          self.assertFalse(f.closed)
          self.assertEqual(f.readline(), 'one\n')
          f.close()
          self.assertFalse(f.closed)
          self.assertEqual(f.readline(), 'two\n')
          self.assertRaises(TypeError, f.close, 1)
  
  
  class StdOutputFilesTest(unittest.TestCase):
  
      def test_misc(self):
          shell = MockShell()
          f = run.StdOutputFile(shell, 'stdout')
          self.assertIsInstance(f, io.TextIOBase)
          self.assertEqual(f.encoding, 'utf-8')
          self.assertEqual(f.errors, 'strict')
          self.assertIsNone(f.newlines)
          self.assertEqual(f.name, '<stdout>')
          self.assertFalse(f.closed)
          self.assertTrue(f.isatty())
          self.assertFalse(f.readable())
          self.assertTrue(f.writable())
          self.assertFalse(f.seekable())
  
      def test_unsupported(self):
          shell = MockShell()
          f = run.StdOutputFile(shell, 'stdout')
          self.assertRaises(OSError, f.fileno)
          self.assertRaises(OSError, f.tell)
          self.assertRaises(OSError, f.seek, 0)
          self.assertRaises(OSError, f.read, 0)
          self.assertRaises(OSError, f.readline, 0)
  
      def test_write(self):
          shell = MockShell()
          f = run.StdOutputFile(shell, 'stdout')
          f.write('test')
          self.assertEqual(shell.written, [('test', 'stdout')])
          shell.reset()
          f.write('t\xe8\u015b\U0001d599')
          self.assertEqual(shell.written, [('t\xe8\u015b\U0001d599', 'stdout')])
          shell.reset()
  
          f.write(S('t\xe8\u015b\U0001d599'))
          self.assertEqual(shell.written, [('t\xe8\u015b\U0001d599', 'stdout')])
          self.assertEqual(type(shell.written[0][0]), str)
          shell.reset()
  
          self.assertRaises(TypeError, f.write)
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.write, b'test')
          self.assertRaises(TypeError, f.write, 123)
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.write, 'test', 'spam')
          self.assertEqual(shell.written, [])
  
      def test_write_stderr_nonencodable(self):
          shell = MockShell()
          f = run.StdOutputFile(shell, 'stderr', 'iso-8859-15', 'backslashreplace')
          f.write('t\xe8\u015b\U0001d599\xa4')
          self.assertEqual(shell.written, [('t\xe8\\u015b\\U0001d599\\xa4', 'stderr')])
          shell.reset()
  
          f.write(S('t\xe8\u015b\U0001d599\xa4'))
          self.assertEqual(shell.written, [('t\xe8\\u015b\\U0001d599\\xa4', 'stderr')])
          self.assertEqual(type(shell.written[0][0]), str)
          shell.reset()
  
          self.assertRaises(TypeError, f.write)
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.write, b'test')
          self.assertRaises(TypeError, f.write, 123)
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.write, 'test', 'spam')
          self.assertEqual(shell.written, [])
  
      def test_writelines(self):
          shell = MockShell()
          f = run.StdOutputFile(shell, 'stdout')
          f.writelines([])
          self.assertEqual(shell.written, [])
          shell.reset()
          f.writelines(['one\n', 'two'])
          self.assertEqual(shell.written,
                           [('one\n', 'stdout'), ('two', 'stdout')])
          shell.reset()
          f.writelines(['on\xe8\n', 'tw\xf2'])
          self.assertEqual(shell.written,
                           [('on\xe8\n', 'stdout'), ('tw\xf2', 'stdout')])
          shell.reset()
  
          f.writelines([S('t\xe8st')])
          self.assertEqual(shell.written, [('t\xe8st', 'stdout')])
          self.assertEqual(type(shell.written[0][0]), str)
          shell.reset()
  
          self.assertRaises(TypeError, f.writelines)
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.writelines, 123)
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.writelines, [b'test'])
          self.assertRaises(TypeError, f.writelines, [123])
          self.assertEqual(shell.written, [])
          self.assertRaises(TypeError, f.writelines, [], [])
          self.assertEqual(shell.written, [])
  
      def test_close(self):
          shell = MockShell()
          f = run.StdOutputFile(shell, 'stdout')
          self.assertFalse(f.closed)
          f.write('test')
          f.close()
          self.assertTrue(f.closed)
          self.assertRaises(ValueError, f.write, 'x')
          self.assertEqual(shell.written, [('test', 'stdout')])
          f.close()
          self.assertRaises(TypeError, f.close, 1)
  
  
  class RecursionLimitTest(unittest.TestCase):
      # Test (un)install_recursionlimit_wrappers and fixdoc.
  
      def test_bad_setrecursionlimit_calls(self):
          run.install_recursionlimit_wrappers()
          self.addCleanup(run.uninstall_recursionlimit_wrappers)
          f = sys.setrecursionlimit
          self.assertRaises(TypeError, f, limit=100)
          self.assertRaises(TypeError, f, 100, 1000)
          self.assertRaises(ValueError, f, 0)
  
      def test_roundtrip(self):
          run.install_recursionlimit_wrappers()
          self.addCleanup(run.uninstall_recursionlimit_wrappers)
  
          # Check that setting the recursion limit works.
          orig_reclimit = sys.getrecursionlimit()
          self.addCleanup(sys.setrecursionlimit, orig_reclimit)
          sys.setrecursionlimit(orig_reclimit + 3)
  
          # Check that the new limit is returned by sys.getrecursionlimit().
          new_reclimit = sys.getrecursionlimit()
          self.assertEqual(new_reclimit, orig_reclimit + 3)
  
      def test_default_recursion_limit_preserved(self):
          orig_reclimit = sys.getrecursionlimit()
          run.install_recursionlimit_wrappers()
          self.addCleanup(run.uninstall_recursionlimit_wrappers)
          new_reclimit = sys.getrecursionlimit()
          self.assertEqual(new_reclimit, orig_reclimit)
  
      def test_fixdoc(self):
          # Put here until better place for miscellaneous test.
          def func(): "docstring"
          run.fixdoc(func, "more")
          self.assertEqual(func.__doc__, "docstring\n\nmore")
          func.__doc__ = None
          run.fixdoc(func, "more")
          self.assertEqual(func.__doc__, "more")
  
  
  class HandleErrorTest(unittest.TestCase):
      # Method of MyRPCServer
      def test_fatal_error(self):
          eq = self.assertEqual
          with captured_output('__stderr__') as err,\
               mock.patch('idlelib.run.thread.interrupt_main',
                          new_callable=Func) as func:
              try:
                  raise EOFError
              except EOFError:
                  run.MyRPCServer.handle_error(None, 'abc', '123')
              eq(run.exit_now, True)
              run.exit_now = False
              eq(err.getvalue(), '')
  
              try:
                  raise IndexError
              except IndexError:
                  run.MyRPCServer.handle_error(None, 'abc', '123')
              eq(run.quitting, True)
              run.quitting = False
              msg = err.getvalue()
              self.assertIn('abc', msg)
              self.assertIn('123', msg)
              self.assertIn('IndexError', msg)
              eq(func.called, 2)
  
  if __name__ == '__main__':
      unittest.main(verbosity=2)
  