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"""
Test that an alias can reference other aliases without crashing.
"""
import lldb
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil
class NestedAliasTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break inside main().
self.line = line_number('main.cpp', '// break here')
def test_nested_alias(self):
"""Test that an alias can reference other aliases without crashing."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break in main() after the variables are assigned values.
lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped', 'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
substrs=[' resolved, hit count = 1'])
# This is the function to remove the custom aliases in order to have a
# clean slate for the next test case.
def cleanup():
self.runCmd('command unalias read', check=False)
self.runCmd('command unalias rd', check=False)
self.runCmd('command unalias fo', check=False)
self.runCmd('command unalias foself', check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
self.runCmd('command alias read memory read -f A')
self.runCmd('command alias rd read -c 3')
self.expect(
'memory read -f A -c 3 `&my_ptr[0]`',
substrs=[
'deadbeef',
'main.cpp:',
'feedbeef'])
self.expect(
'rd `&my_ptr[0]`',
substrs=[
'deadbeef',
'main.cpp:',
'feedbeef'])
self.expect(
'memory read -f A -c 3 `&my_ptr[0]`',
substrs=['deadfeed'],
matching=False)
self.expect('rd `&my_ptr[0]`', substrs=['deadfeed'], matching=False)
self.runCmd('command alias fo frame variable -O --')
self.runCmd('command alias foself fo self')
self.expect(
'help foself',
substrs=[
'--show-all-children',
'--raw-output'],
matching=False)
self.expect(
'help foself',
substrs=[
'Show variables for the current',
'stack frame.'],
matching=True)
# Check that foself was resolved and is now independent of 'fo'.
self.runCmd('command unalias fo')
self.expect(
'help foself',
substrs=[
'Show variables for the current',
'stack frame.'],
matching=True)
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