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107052ff9d
Summary: The changes here fall into several categories. - some tests were redirecting inferior stdout/err to a file. For these I make sure we use an absolute path for the file. I also create a lldbutil.read_file_on_target helper function to encapsulate the differences between reading a file locally and remotely. - some tests were redirecting the pexpect I/O into a file. For these I use a python StringIO object to avoid creating a file altogether. - the TestSettings inferior was creating a file. Here, I make sure the inferior is launched with pwd=build-dir so that the files end up created there. - lldb-mi --log (used by some tests) creates a log file in PWD without the ability say differently. To make this work I make sure to run lldb-mi with PWD=build_dir. This in turn necessitated a couple of changes in other lldb-mi tests, which were using relative paths to access the source tree. Reviewers: aprantl Subscribers: ki.stfu, mehdi_amini, lldb-commits Differential Revision: https://reviews.llvm.org/D44159 llvm-svn: 327625
112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
"""
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Test that 'stty -a' displays the same output before and after running the lldb command.
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"""
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from __future__ import print_function
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import os
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import lldb
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import six
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class TestSTTYBeforeAndAfter(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@classmethod
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def classCleanup(cls):
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"""Cleanup the test byproducts."""
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cls.RemoveTempFile("child_send1.txt")
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cls.RemoveTempFile("child_read1.txt")
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cls.RemoveTempFile("child_send2.txt")
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cls.RemoveTempFile("child_read2.txt")
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@expectedFailureAll(
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hostoslist=["windows"],
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bugnumber="llvm.org/pr22274: need a pexpect replacement for windows")
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@no_debug_info_test
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def test_stty_dash_a_before_and_afetr_invoking_lldb_command(self):
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"""Test that 'stty -a' displays the same output before and after running the lldb command."""
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import pexpect
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if not which('expect'):
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self.skipTest(
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"The 'expect' program cannot be located, skip the test")
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# The expect prompt.
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expect_prompt = "expect[0-9.]+> "
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# The default lldb prompt.
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lldb_prompt = "(lldb) "
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('expect')
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child = self.child
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child.expect(expect_prompt)
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child.setecho(True)
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if self.TraceOn():
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child.logfile = sys.stdout
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if self.platformIsDarwin():
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child.sendline('set env(TERM) xterm')
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else:
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child.sendline('set env(TERM) vt100')
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child.expect(expect_prompt)
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child.sendline('puts $env(TERM)')
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child.expect(expect_prompt)
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# Turn on loggings for input/output to/from the child.
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child.logfile_send = child_send1 = six.StringIO()
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child.logfile_read = child_read1 = six.StringIO()
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child.sendline('stty -a')
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child.expect(expect_prompt)
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# Now that the stage1 logging is done, restore logfile to None to
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# stop further logging.
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child.logfile_send = None
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child.logfile_read = None
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# Invoke the lldb command.
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child.sendline('%s %s' % (lldbtest_config.lldbExec, self.lldbOption))
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child.expect_exact(lldb_prompt)
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# Immediately quit.
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child.sendline('quit')
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child.expect(expect_prompt)
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child.logfile_send = child_send2 = six.StringIO()
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child.logfile_read = child_read2 = six.StringIO()
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child.sendline('stty -a')
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child.expect(expect_prompt)
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child.sendline('exit')
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# Now that the stage2 logging is done, restore logfile to None to
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# stop further logging.
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child.logfile_send = None
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child.logfile_read = None
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if self.TraceOn():
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print("\n\nContents of child_send1:")
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print(child_send1.getvalue())
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print("\n\nContents of child_read1:")
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print(child_read1.getvalue())
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print("\n\nContents of child_send2:")
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print(child_send2.getvalue())
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print("\n\nContents of child_read2:")
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print(child_read2.getvalue())
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stty_output1_lines = child_read1.getvalue().splitlines()
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stty_output2_lines = child_read2.getvalue().splitlines()
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zipped = list(zip(stty_output1_lines, stty_output2_lines))
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for tuple in zipped:
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if self.TraceOn():
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print("tuple->%s" % str(tuple))
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# Every line should compare equal until the first blank line.
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if len(tuple[0]) == 0:
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break
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self.assertTrue(tuple[0] == tuple[1])
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