Edit File: test_run.py
"Test run, coverage 42%." from idlelib import run import unittest from unittest import mock from test.support import 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 TestSysRecursionLimitWrappers(unittest.TestCase): 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): 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") if __name__ == '__main__': unittest.main(verbosity=2)