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"""
Test lldb 'commands regex' command which allows the user to create a regular expression command.
"""
from __future__ import print_function
import os
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestHomeDirectory(TestBase):
mydir = TestBase.compute_mydir(__file__)
@expectedFailureAll(
hostoslist=["windows"],
bugnumber="llvm.org/pr22274: need a pexpect replacement for windows")
@no_debug_info_test
def test_tilde_home_directory(self):
"""Test that we can resolve "~/" in paths correctly.
When a path starts with "~/", we use llvm::sys::path::home_directory() to
resolve the home directory. This currently relies on "HOME" being set in the
environment. While this is usually set, we can't rely upon that. We might
eventually get a fix into llvm::sys::path::home_directory() so it doesn't rely
on having to have an environment variable set, but until then we have work around
code in FileSpec::ResolveUsername (llvm::SmallVectorImpl<char> &path) to ensure
this always works. This test tests that we get the correct answer for with and
without "HOME" being set in the environment."""
import pexpect
prompt = "(lldb) "
child = pexpect.spawn(
'%s --no-use-colors %s' %
(lldbtest_config.lldbExec, self.lldbOption))
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
# So that the spawned lldb session gets shutdown durng teardown.
self.child = child
# Resolve "~/." to the full path of our home directory + "/."
if 'HOME' in os.environ:
home_dir = os.environ['HOME']
if self.TraceOn():
print("home directory is: '%s'" % (home_dir))
if os.path.exists(home_dir):
home_dir_slash_dot = home_dir + '/.'
child.expect_exact(prompt)
child.sendline('''script str(lldb.SBFileSpec("~/.", True))''')
child.expect_exact(home_dir)
child.expect_exact(prompt)
child.sendline(
'''script import os; os.unsetenv('HOME'); str(lldb.SBFileSpec("~/", True))''')
child.expect_exact(home_dir)
child.expect_exact(prompt)
elif self.TraceOn():
print(
'''home directory "%s" doesn't exist, skipping home directory test''' %
(home_dir))
elif self.TraceOn():
print('"HOME" not in environment, skipping home directory test')
child.sendline('quit')
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