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"""
Test the lldb command line completion mechanism.
"""
import os
import unittest2
import lldb
import pexpect
from lldbtest import *
class CommandLineCompletionTestCase(TestBase):
mydir = os.path.join("functionalities", "completion")
@classmethod
def classCleanup(cls):
"""Cleanup the test byproducts."""
try:
os.remove("child_send.txt")
os.remove("child_read.txt")
except:
pass
def test_at(self):
"""Test that 'at' completes to 'attach '."""
self.complete_from_to('at', 'attach ')
def test_de(self):
"""Test that 'de' completes to 'detach '."""
self.complete_from_to('de', 'detach ')
def test_process_attach_dash_dash_con(self):
"""Test that 'process attach --con' completes to 'process attach --continue '."""
self.complete_from_to('process attach --con', 'process attach --continue ')
# <rdar://problem/11052829>
@skipIfLinux # llvm.org/pr14637: this test case fails (with GCC 4.6 but not clang) because the input prompt "(lldb)" is missing
def test_infinite_loop_while_completing(self):
"""Test that 'process print hello\' completes to itself and does not infinite loop."""
self.complete_from_to('process print hello\\', 'process print hello\\',
turn_off_re_match=True)
def test_watchpoint_command_dash_w_space(self):
"""Test that 'watchpoint command' completes to ['Available completions:', 'add', 'delete', 'list']."""
self.complete_from_to('watchpoint command', ['Available completions:', 'add', 'delete', 'list'])
def test_watchpoint_set_variable_dash_w(self):
"""Test that 'watchpoint set variable -w' completes to 'watchpoint set variable -w '."""
self.complete_from_to('watchpoint set variable -w', 'watchpoint set variable -w ')
def test_watchpoint_set_variable_dash_w_space(self):
"""Test that 'watchpoint set variable -w ' completes to ['Available completions:', 'read', 'write', 'read_write']."""
self.complete_from_to('watchpoint set variable -w ', ['Available completions:', 'read', 'write', 'read_write'])
def test_watchpoint_set_ex(self):
"""Test that 'watchpoint set ex' completes to 'watchpoint set expression '."""
self.complete_from_to('watchpoint set ex', 'watchpoint set expression ')
def test_watchpoint_set_var(self):
"""Test that 'watchpoint set var' completes to 'watchpoint set variable '."""
self.complete_from_to('watchpoint set var', 'watchpoint set variable ')
def test_watchpoint_set_variable_dash_w_read_underbar(self):
"""Test that 'watchpoint set variable -w read_' completes to 'watchpoint set variable -w read_write'."""
self.complete_from_to('watchpoint set variable -w read_', 'watchpoint set variable -w read_write')
def test_help_fi(self):
"""Test that 'help fi' completes to ['Available completions:', 'file', 'finish']."""
self.complete_from_to('help fi', ['Available completions:', 'file', 'finish'])
def test_help_watchpoint_s(self):
"""Test that 'help watchpoint s' completes to 'help watchpoint set '."""
self.complete_from_to('help watchpoint s', 'help watchpoint set ')
def test_settings_append_target_er(self):
"""Test that 'settings append target.er' completes to 'settings append target.error-path'."""
self.complete_from_to('settings append target.er', 'settings append target.error-path')
def test_settings_insert_after_target_en(self):
"""Test that 'settings insert-after target.env' completes to 'settings insert-after target.env-vars'."""
self.complete_from_to('settings insert-after target.env', 'settings insert-after target.env-vars')
def test_settings_insert_before_target_en(self):
"""Test that 'settings insert-before target.env' completes to 'settings insert-before target.env-vars'."""
self.complete_from_to('settings insert-before target.env', 'settings insert-before target.env-vars')
def test_settings_replace_target_ru(self):
"""Test that 'settings replace target.ru' completes to 'settings replace target.run-args'."""
self.complete_from_to('settings replace target.ru', 'settings replace target.run-args')
def test_settings_s(self):
"""Test that 'settings s' completes to ['Available completions:', 'set', 'show']."""
self.complete_from_to('settings s', ['Available completions:', 'set', 'show'])
def test_settings_set_th(self):
"""Test that 'settings set th' completes to 'settings set thread-format'."""
self.complete_from_to('settings set th', 'settings set thread-format')
def test_settings_s_dash(self):
"""Test that 'settings set -' completes to 'settings set -g'."""
self.complete_from_to('settings set -', 'settings set -g')
def test_settings_clear_th(self):
"""Test that 'settings clear th' completes to 'settings clear thread-format'."""
self.complete_from_to('settings clear th', 'settings clear thread-format')
def test_settings_set_ta(self):
"""Test that 'settings set ta' completes to 'settings set target.'."""
self.complete_from_to('settings set ta', 'settings set target.')
def test_settings_set_target_exec(self):
"""Test that 'settings set target.exec' completes to 'settings set target.exec-search-paths '."""
self.complete_from_to('settings set target.exec', 'settings set target.exec-search-paths')
def test_settings_set_target_pr(self):
"""Test that 'settings set target.pr' completes to ['Available completions:',
'target.prefer-dynamic-value', 'target.process.']."""
self.complete_from_to('settings set target.pr',
['Available completions:',
'target.prefer-dynamic-value',
'target.process.'])
def test_settings_set_target_process(self):
"""Test that 'settings set target.process' completes to 'settings set target.process.'."""
self.complete_from_to('settings set target.process', 'settings set target.process.')
def test_settings_set_target_process_dot(self):
"""Test that 'settings set target.process.t' completes to 'settings set target.process.thread.'."""
self.complete_from_to('settings set target.process.t', 'settings set target.process.thread.')
def test_settings_set_target_process_thread_dot(self):
"""Test that 'settings set target.process.thread.' completes to ['Available completions:',
'target.process.thread.step-avoid-regexp', 'target.process.thread.trace-thread']."""
self.complete_from_to('settings set target.process.thread.',
['Available completions:',
'target.process.thread.step-avoid-regexp',
'target.process.thread.trace-thread'])
def test_target_space(self):
"""Test that 'target ' completes to ['Available completions:', 'create', 'delete', 'list',
'modules', 'select', 'stop-hook', 'variable']."""
self.complete_from_to('target ',
['Available completions:', 'create', 'delete', 'list',
'modules', 'select', 'stop-hook', 'variable'])
def test_target_create_dash_co(self):
"""Test that 'target create --co' completes to 'target variable --core '."""
self.complete_from_to('target create --co', 'target create --core ')
def test_target_va(self):
"""Test that 'target va' completes to 'target variable '."""
self.complete_from_to('target va', 'target variable ')
def complete_from_to(self, str_input, patterns, turn_off_re_match=False):
"""Test that the completion mechanism completes str_input to patterns,
where patterns could be a pattern-string or a list of pattern-strings"""
# Patterns should not be None in order to proceed.
self.assertFalse(patterns is None)
# And should be either a string or list of strings. Check for list type
# below, if not, make a list out of the singleton string. If patterns
# is not a string or not a list of strings, there'll be runtime errors
# later on.
if not isinstance(patterns, list):
patterns = [patterns]
# The default lldb prompt.
prompt = "(lldb) "
# So that the child gets torn down after the test.
self.child = pexpect.spawn('%s %s' % (self.lldbHere, self.lldbOption))
child = self.child
# Turn on logging for input/output to/from the child.
with open('child_send.txt', 'w') as f_send:
with open('child_read.txt', 'w') as f_read:
child.logfile_send = f_send
child.logfile_read = f_read
child.expect_exact(prompt)
child.setecho(True)
# Sends str_input and a Tab to invoke the completion machinery.
child.send("%s\t" % str_input)
child.sendline('')
child.expect_exact(prompt)
# Now that the necessary logging is done, restore logfile to None to
# stop further logging.
child.logfile_send = None
child.logfile_read = None
with open('child_send.txt', 'r') as fs:
if self.TraceOn():
print "\n\nContents of child_send.txt:"
print fs.read()
with open('child_read.txt', 'r') as fr:
from_child = fr.read()
if self.TraceOn():
print "\n\nContents of child_read.txt:"
print from_child
# The matching could be verbatim or using generic re pattern.
for p in patterns:
# Test that str_input completes to our patterns or substrings.
# If each pattern/substring matches from_child, the completion mechanism works!
if turn_off_re_match:
self.expect(from_child, msg=COMPLETION_MSG(str_input, p), exe=False,
substrs = [p])
else:
self.expect(from_child, msg=COMPLETION_MSG(str_input, p), exe=False,
patterns = [p])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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