| """ |
| Test that 'stty -a' displays the same output before and after running the lldb command. |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import lldb |
| import six |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class TestSTTYBeforeAndAfter(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @classmethod |
| def classCleanup(cls): |
| """Cleanup the test byproducts.""" |
| cls.RemoveTempFile("child_send1.txt") |
| cls.RemoveTempFile("child_read1.txt") |
| cls.RemoveTempFile("child_send2.txt") |
| cls.RemoveTempFile("child_read2.txt") |
| |
| @expectedFailureAll( |
| hostoslist=["windows"], |
| bugnumber="llvm.org/pr22274: need a pexpect replacement for windows") |
| @no_debug_info_test |
| def test_stty_dash_a_before_and_afetr_invoking_lldb_command(self): |
| """Test that 'stty -a' displays the same output before and after running the lldb command.""" |
| import pexpect |
| if not which('expect'): |
| self.skipTest( |
| "The 'expect' program cannot be located, skip the test") |
| |
| # The expect prompt. |
| expect_prompt = "expect[0-9.]+> " |
| # The default lldb prompt. |
| lldb_prompt = "(lldb) " |
| |
| # So that the child gets torn down after the test. |
| self.child = pexpect.spawn('expect') |
| child = self.child |
| |
| child.expect(expect_prompt) |
| child.setecho(True) |
| if self.TraceOn(): |
| child.logfile = sys.stdout |
| |
| if self.platformIsDarwin(): |
| child.sendline('set env(TERM) xterm') |
| else: |
| child.sendline('set env(TERM) vt100') |
| child.expect(expect_prompt) |
| child.sendline('puts $env(TERM)') |
| child.expect(expect_prompt) |
| |
| # Turn on loggings for input/output to/from the child. |
| child.logfile_send = child_send1 = six.StringIO() |
| child.logfile_read = child_read1 = six.StringIO() |
| child.sendline('stty -a') |
| child.expect(expect_prompt) |
| |
| # Now that the stage1 logging is done, restore logfile to None to |
| # stop further logging. |
| child.logfile_send = None |
| child.logfile_read = None |
| |
| # Invoke the lldb command. |
| child.sendline('%s %s' % (lldbtest_config.lldbExec, self.lldbOption)) |
| child.expect_exact(lldb_prompt) |
| |
| # Immediately quit. |
| child.sendline('quit') |
| child.expect(expect_prompt) |
| |
| child.logfile_send = child_send2 = six.StringIO() |
| child.logfile_read = child_read2 = six.StringIO() |
| child.sendline('stty -a') |
| child.expect(expect_prompt) |
| |
| child.sendline('exit') |
| |
| # Now that the stage2 logging is done, restore logfile to None to |
| # stop further logging. |
| child.logfile_send = None |
| child.logfile_read = None |
| |
| if self.TraceOn(): |
| print("\n\nContents of child_send1:") |
| print(child_send1.getvalue()) |
| print("\n\nContents of child_read1:") |
| print(child_read1.getvalue()) |
| print("\n\nContents of child_send2:") |
| print(child_send2.getvalue()) |
| print("\n\nContents of child_read2:") |
| print(child_read2.getvalue()) |
| |
| stty_output1_lines = child_read1.getvalue().splitlines() |
| stty_output2_lines = child_read2.getvalue().splitlines() |
| zipped = list(zip(stty_output1_lines, stty_output2_lines)) |
| for tuple in zipped: |
| if self.TraceOn(): |
| print("tuple->%s" % str(tuple)) |
| # Every line should compare equal until the first blank line. |
| if len(tuple[0]) == 0: |
| break |
| self.assertTrue(tuple[0] == tuple[1]) |