43cb4631c1
The cause is that in `python3.14`, `fcntl.ioctl` now throws a buffer overflow error when the buffer is too small or too large (see https://github.com/python/cpython/pull/132919). This caused the Python interpreter to fail terminal detection and not properly echo user commands back to the screen. Fix by dropping the custom terminal size check entirely and using the built-in `sys.stdin.isatty()` instead. Fixes #173302
109 lines
3.1 KiB
Python
109 lines
3.1 KiB
Python
# System modules
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import os
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import sys
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# LLDB Modules
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import lldb
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from .lldbtest import *
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from . import lldbutil
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from lldbsuite.test.decorators import *
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@skipIfRemote
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@skipIfWindows
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@add_test_categories(["pexpect"])
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class PExpectTest(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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PROMPT = "(lldb) "
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def expect_prompt(self):
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self.child.expect_exact(self.PROMPT)
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def launch(
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self,
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executable=None,
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extra_args=None,
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timeout=60,
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dimensions=None,
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run_under=None,
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post_spawn=None,
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encoding=None,
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use_colors=False,
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):
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# Using a log file is incompatible with using utf-8 as the encoding.
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logfile = (
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getattr(sys.stdout, "buffer", sys.stdout)
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if (self.TraceOn() and not encoding)
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else None
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)
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args = []
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if run_under is not None:
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args += run_under
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args += [lldbtest_config.lldbExec, "--no-lldbinit"]
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if not use_colors:
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args.append("--no-use-colors")
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for cmd in self.setUpCommands():
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if "use-color false" in cmd and use_colors:
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continue
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args += ["-O", cmd]
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if executable is not None:
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args += ["--file", executable]
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if extra_args is not None:
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args.extend(extra_args)
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env = dict(os.environ)
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env["TERM"] = "vt100"
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env["HOME"] = self.getBuildDir()
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import pexpect
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self.child = pexpect.spawn(
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args[0],
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args=args[1:],
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logfile=logfile,
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timeout=timeout,
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dimensions=dimensions,
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env=env,
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encoding=encoding,
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)
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self.child.ptyproc.delayafterclose = timeout / 10
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self.child.ptyproc.delayafterterminate = timeout / 10
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if post_spawn is not None:
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post_spawn()
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self.expect_prompt()
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for cmd in self.setUpCommands():
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if "use-color false" in cmd and use_colors:
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continue
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self.child.expect_exact(cmd)
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self.expect_prompt()
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if executable is not None:
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self.child.expect_exact("target create")
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self.child.expect_exact("Current executable set to")
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self.expect_prompt()
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def expect(self, cmd, substrs=None):
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self.assertNotIn("\n", cmd)
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# If 'substrs' is a string then this code would just check that every
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# character of the string is in the output.
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assert not isinstance(substrs, str), "substrs must be a collection of strings"
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self.child.sendline(cmd)
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if substrs is not None:
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for s in substrs:
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self.child.expect_exact(s)
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self.expect_prompt()
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def quit(self, gracefully=True):
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self.child.sendeof()
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self.child.close(force=not gracefully)
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self.child = None
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def cursor_forward_escape_seq(self, chars_to_move):
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"""
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Returns the escape sequence to move the cursor forward/right
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by a certain amount of characters.
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"""
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return b"\x1b\\[" + str(chars_to_move).encode("utf-8") + b"C"
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