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📄 __init__.py
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SAVING...
BERHASIL DIUBAH!
EDITING: test_readline.py
""" Very minimal unittests for parts of the readline module. """ import locale import os import sys import tempfile import textwrap import unittest from test.support import verbose from test.support.import_helper import import_module from test.support.os_helper import unlink, temp_dir, TESTFN from test.support.pty_helper import run_pty from test.support.script_helper import assert_python_ok # Skip tests if there is no readline module readline = import_module('readline') if hasattr(readline, "_READLINE_LIBRARY_VERSION"): is_editline = ("EditLine wrapper" in readline._READLINE_LIBRARY_VERSION) else: is_editline = (readline.__doc__ and "libedit" in readline.__doc__) def setUpModule(): if verbose: # Python implementations other than CPython may not have # these private attributes if hasattr(readline, "_READLINE_VERSION"): print(f"readline version: {readline._READLINE_VERSION:#x}") print(f"readline runtime version: {readline._READLINE_RUNTIME_VERSION:#x}") if hasattr(readline, "_READLINE_LIBRARY_VERSION"): print(f"readline library version: {readline._READLINE_LIBRARY_VERSION!r}") print(f"use libedit emulation? {is_editline}") @unittest.skipUnless(hasattr(readline, "clear_history"), "The history update test cannot be run because the " "clear_history method is not available.") class TestHistoryManipulation (unittest.TestCase): """ These tests were added to check that the libedit emulation on OSX and the "real" readline have the same interface for history manipulation. That's why the tests cover only a small subset of the interface. """ def testHistoryUpdates(self): readline.clear_history() readline.add_history("first line") readline.add_history("second line") self.assertEqual(readline.get_history_item(0), None) self.assertEqual(readline.get_history_item(1), "first line") self.assertEqual(readline.get_history_item(2), "second line") readline.replace_history_item(0, "replaced line") self.assertEqual(readline.get_history_item(0), None) self.assertEqual(readline.get_history_item(1), "replaced line") self.assertEqual(readline.get_history_item(2), "second line") self.assertEqual(readline.get_current_history_length(), 2) readline.remove_history_item(0) self.assertEqual(readline.get_history_item(0), None) self.assertEqual(readline.get_history_item(1), "second line") self.assertEqual(readline.get_current_history_length(), 1) @unittest.skipUnless(hasattr(readline, "append_history_file"), "append_history not available") def test_write_read_append(self): hfile = tempfile.NamedTemporaryFile(delete=False) hfile.close() hfilename = hfile.name self.addCleanup(unlink, hfilename) # test write-clear-read == nop readline.clear_history() readline.add_history("first line") readline.add_history("second line") readline.write_history_file(hfilename) readline.clear_history() self.assertEqual(readline.get_current_history_length(), 0) readline.read_history_file(hfilename) self.assertEqual(readline.get_current_history_length(), 2) self.assertEqual(readline.get_history_item(1), "first line") self.assertEqual(readline.get_history_item(2), "second line") # test append readline.append_history_file(1, hfilename) readline.clear_history() readline.read_history_file(hfilename) self.assertEqual(readline.get_current_history_length(), 3) self.assertEqual(readline.get_history_item(1), "first line") self.assertEqual(readline.get_history_item(2), "second line") self.assertEqual(readline.get_history_item(3), "second line") # test 'no such file' behaviour os.unlink(hfilename) try: readline.append_history_file(1, hfilename) except FileNotFoundError: pass # Some implementations return this error (libreadline). else: os.unlink(hfilename) # Some create it anyways (libedit). # If the file wasn't created, unlink will fail. # We're just testing that one of the two expected behaviors happens # instead of an incorrect error. # write_history_file can create the target readline.write_history_file(hfilename) def test_nonascii_history(self): readline.clear_history() try: readline.add_history("entrée 1") except UnicodeEncodeError as err: self.skipTest("Locale cannot encode test data: " + format(err)) readline.add_history("entrée 2") readline.replace_history_item(1, "entrée 22") readline.write_history_file(TESTFN) self.addCleanup(os.remove, TESTFN) readline.clear_history() readline.read_history_file(TESTFN) if is_editline: # An add_history() call seems to be required for get_history_ # item() to register items from the file readline.add_history("dummy") self.assertEqual(readline.get_history_item(1), "entrée 1") self.assertEqual(readline.get_history_item(2), "entrée 22") class TestReadline(unittest.TestCase): @unittest.skipIf(readline._READLINE_VERSION < 0x0601 and not is_editline, "not supported in this library version") def test_init(self): # Issue #19884: Ensure that the ANSI sequence "\033[1034h" is not # written into stdout when the readline module is imported and stdout # is redirected to a pipe. rc, stdout, stderr = assert_python_ok('-c', 'import readline', TERM='xterm-256color') self.assertEqual(stdout, b'') auto_history_script = """\ import readline readline.set_auto_history({}) input() print("History length:", readline.get_current_history_length()) """ def test_auto_history_enabled(self): output = run_pty(self.auto_history_script.format(True)) # bpo-44949: Sometimes, the newline character is not written at the # end, so don't expect it in the output. self.assertIn(b"History length: 1", output) def test_auto_history_disabled(self): output = run_pty(self.auto_history_script.format(False)) # bpo-44949: Sometimes, the newline character is not written at the # end, so don't expect it in the output. self.assertIn(b"History length: 0", output) def test_set_complete_delims(self): script = textwrap.dedent(""" import readline def complete(text, state): if state == 0 and text == "$": return "$complete" return None if "libedit" in getattr(readline, "__doc__", ""): readline.parse_and_bind(r'bind "\\t" rl_complete') else: readline.parse_and_bind(r'"\\t": complete') readline.set_completer_delims(" \\t\\n") readline.set_completer(complete) print(input()) """) output = run_pty(script, input=b"$\t\n") self.assertIn(b"$complete", output) def test_nonascii(self): loc = locale.setlocale(locale.LC_CTYPE, None) if loc in ('C', 'POSIX'): # bpo-29240: On FreeBSD, if the LC_CTYPE locale is C or POSIX, # writing and reading non-ASCII bytes into/from a TTY works, but # readline or ncurses ignores non-ASCII bytes on read. self.skipTest(f"the LC_CTYPE locale is {loc!r}") try: readline.add_history("\xEB\xEF") except UnicodeEncodeError as err: self.skipTest("Locale cannot encode test data: " + format(err)) script = r"""import readline is_editline = readline.__doc__ and "libedit" in readline.__doc__ inserted = "[\xEFnserted]" macro = "|t\xEB[after]" set_pre_input_hook = getattr(readline, "set_pre_input_hook", None) if is_editline or not set_pre_input_hook: # The insert_line() call via pre_input_hook() does nothing with Editline, # so include the extra text that would have been inserted here macro = inserted + macro if is_editline: readline.parse_and_bind(r'bind ^B ed-prev-char') readline.parse_and_bind(r'bind "\t" rl_complete') readline.parse_and_bind(r'bind -s ^A "{}"'.format(macro)) else: readline.parse_and_bind(r'Control-b: backward-char') readline.parse_and_bind(r'"\t": complete') readline.parse_and_bind(r'set disable-completion off') readline.parse_and_bind(r'set show-all-if-ambiguous off') readline.parse_and_bind(r'set show-all-if-unmodified off') readline.parse_and_bind(r'Control-a: "{}"'.format(macro)) def pre_input_hook(): readline.insert_text(inserted) readline.redisplay() if set_pre_input_hook: set_pre_input_hook(pre_input_hook) def completer(text, state): if text == "t\xEB": if state == 0: print("text", ascii(text)) print("line", ascii(readline.get_line_buffer())) print("indexes", readline.get_begidx(), readline.get_endidx()) return "t\xEBnt" if state == 1: return "t\xEBxt" if text == "t\xEBx" and state == 0: return "t\xEBxt" return None readline.set_completer(completer) def display(substitution, matches, longest_match_length): print("substitution", ascii(substitution)) print("matches", ascii(matches)) readline.set_completion_display_matches_hook(display) print("result", ascii(input())) print("history", ascii(readline.get_history_item(1))) """ input = b"\x01" # Ctrl-A, expands to "|t\xEB[after]" input += b"\x02" * len("[after]") # Move cursor back input += b"\t\t" # Display possible completions input += b"x\t" # Complete "t\xEBx" -> "t\xEBxt" input += b"\r" output = run_pty(script, input) self.assertIn(b"text 't\\xeb'\r\n", output) self.assertIn(b"line '[\\xefnserted]|t\\xeb[after]'\r\n", output) if sys.platform == "darwin" or not is_editline: self.assertIn(b"indexes 11 13\r\n", output) # Non-macOS libedit does not handle non-ASCII bytes # the same way and generates character indices # rather than byte indices via get_begidx() and # get_endidx(). Ex: libedit2 3.1-20191231-2 on Debian # winds up with "indexes 10 12". Stemming from the # start and end values calls back into readline.c's # rl_attempted_completion_function = flex_complete with: # (11, 13) instead of libreadline's (12, 15). if not is_editline and hasattr(readline, "set_pre_input_hook"): self.assertIn(b"substitution 't\\xeb'\r\n", output) self.assertIn(b"matches ['t\\xebnt', 't\\xebxt']\r\n", output) expected = br"'[\xefnserted]|t\xebxt[after]'" self.assertIn(b"result " + expected + b"\r\n", output) # bpo-45195: Sometimes, the newline character is not written at the # end, so don't expect it in the output. self.assertIn(b"history " + expected, output) # We have 2 reasons to skip this test: # - readline: history size was added in 6.0 # See https://cnswww.cns.cwru.edu/php/chet/readline/CHANGES # - editline: history size is broken on OS X 10.11.6. # Newer versions were not tested yet. @unittest.skipIf(readline._READLINE_VERSION < 0x600, "this readline version does not support history-size") @unittest.skipIf(is_editline, "editline history size configuration is broken") def test_history_size(self): history_size = 10 with temp_dir() as test_dir: inputrc = os.path.join(test_dir, "inputrc") with open(inputrc, "wb") as f: f.write(b"set history-size %d\n" % history_size) history_file = os.path.join(test_dir, "history") with open(history_file, "wb") as f: # history_size * 2 items crashes readline data = b"".join(b"item %d\n" % i for i in range(history_size * 2)) f.write(data) script = """ import os import readline history_file = os.environ["HISTORY_FILE"] readline.read_history_file(history_file) input() readline.write_history_file(history_file) """ env = dict(os.environ) env["INPUTRC"] = inputrc env["HISTORY_FILE"] = history_file run_pty(script, input=b"last input\r", env=env) with open(history_file, "rb") as f: lines = f.readlines() self.assertEqual(len(lines), history_size) self.assertEqual(lines[-1].strip(), b"last input") if __name__ == "__main__": unittest.main()
SIMPAN PERUBAHAN