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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):
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.
lldbutil.check_breakpoint(self, bpno=1, expected_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)
self.runCmd("command unalias add_two", check=False)
self.runCmd("command unalias two", 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,
)
# Check that aliases can be created for raw input commands.
self.expect("command alias two expr -- 2")
self.expect("command alias add_two two +")
self.expect("add_two 3", patterns=[" = 5$"])
# Check that aliases to aliases to raw input commands work the second
# and subsequent times.
self.expect("add_two 3", patterns=[" = 5$"])
self.expect("add_two 3", patterns=[" = 5$"])
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