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"""
Test finish out of an empty function (may be one-instruction long)
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class FinishFromEmptyFunctionTestCase(TestBase):
NO_DEBUG_INFO_TESTCASE = True
@skipIf(compiler="clang", compiler_version=['<', '17.0'])
def test_finish_from_empty_function(self):
"""Test that when stopped at a breakpoint in an empty function, finish leaves it correctly."""
self.build()
exe = self.getBuildArtifact("a.out")
target, process, thread, _ = lldbutil.run_to_name_breakpoint(
self, "done", exe_name=exe
)
if self.TraceOn():
self.runCmd("bt")
correct_stepped_out_line = line_number("main.c", "leaving main")
return_statement_line = line_number("main.c", "return 0")
safety_bp = target.BreakpointCreateByLocation(
lldb.SBFileSpec("main.c"), return_statement_line
)
self.assertTrue(safety_bp.IsValid())
error = lldb.SBError()
thread.StepOut(error)
self.assertTrue(error.Success())
if self.TraceOn():
self.runCmd("bt")
frame = thread.GetSelectedFrame()
self.assertEqual(
frame.line_entry.GetLine(),
correct_stepped_out_line,
"Step-out lost control of execution, ran too far",
)
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