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"""
Test behavior of `po` and persistent results.
"""
import lldb
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
from lldbsuite.test import lldbutil
class TestCase(TestBase):
def setUp(self):
TestBase.setUp(self)
self.build()
lldbutil.run_to_source_breakpoint(self, "break here", lldb.SBFileSpec("main.m"))
@skipUnlessDarwin
def test_po_does_not_print_persistent_result(self):
"""Test `po` doesn't advertise a persistent result variable."""
self.expect("po obj", matching=False, substrs=["$0 = "])
@skipUnlessDarwin
def test_po_does_not_keep_persistent_result(self):
"""Test `po` doesn't leak a persistent result variable."""
self.expect("po obj")
# Verify `po` used a temporary persistent result. In other words, there
# should be no $0 at this point.
self.expect("expression $0", error=True)
self.expect("expression obj", substrs=["$0 = "])
@skipUnlessDarwin
def test_expression_description_verbosity(self):
"""Test printing object description _and_ opt-in to persistent results."""
self.expect("expression -O -vfull -- obj", substrs=["$0 = "])
self.expect("expression $0", substrs=["$0 = "])
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