| """ |
| Test sending SIGINT to the embedded Python REPL. |
| """ |
| |
| import os |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test.lldbpexpect import PExpectTest |
| |
| |
| class TestCase(PExpectTest): |
| def start_python_repl(self): |
| """Starts up the embedded Python REPL.""" |
| self.launch() |
| # Start the embedded Python REPL via the 'script' command. |
| self.child.send("script -l python --\n") |
| # Wait for the Python REPL prompt. |
| self.child.expect(">>>") |
| |
| # PExpect uses many timeouts internally and doesn't play well |
| # under ASAN on a loaded machine.. |
| @skipIfAsan |
| @skipIfWindows |
| @skipIf(oslist=["linux"], archs=["arm", "aarch64"]) |
| def test_while_evaluating_code(self): |
| """Tests SIGINT handling while Python code is being evaluated.""" |
| self.start_python_repl() |
| |
| # Start a long-running command that we try to abort with SIGINT. |
| # Note that we dont actually wait 10000s in this code as pexpect or |
| # lit will kill the test way before that. |
| self.child.send("import time; print('running' + 'now'); time.sleep(10000);\n") |
| |
| # Make sure the command is actually being evaluated at the moment by |
| # looking at the string that the command is printing. |
| # Don't check for a needle that also occurs in the program itself to |
| # prevent that echoing will make this check pass unintentionally. |
| self.child.expect("runningnow") |
| |
| # Send SIGINT to the LLDB process. |
| self.child.sendintr() |
| |
| # This should get transformed to a KeyboardInterrupt which is the same |
| # behaviour as the standalone Python REPL. It should also interrupt |
| # the evaluation of our sleep statement. |
| self.child.expect("KeyboardInterrupt") |
| # Send EOF to quit the Python REPL. |
| self.child.sendeof() |
| |
| self.quit() |
| |
| # PExpect uses many timeouts internally and doesn't play well |
| # under ASAN on a loaded machine.. |
| @skipIfAsan |
| # FIXME: On Linux the Python code that reads from stdin seems to block until |
| # it has finished reading a line before handling any queued signals. |
| @skipIf(hostoslist=["linux"]) |
| @skipIfWindows |
| def test_while_waiting_on_input(self): |
| """Tests SIGINT handling while the REPL is waiting on input from |
| stdin.""" |
| self.start_python_repl() |
| |
| # Send SIGINT to the LLDB process. |
| self.child.sendintr() |
| # This should get transformed to a KeyboardInterrupt which is the same |
| # behaviour as the standalone Python REPL. |
| self.child.expect("KeyboardInterrupt") |
| # Send EOF to quit the Python REPL. |
| self.child.sendeof() |
| |
| self.quit() |