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"""
Test that global operators are found and evaluated.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestCppGlobalOperators(TestBase):
mydir = TestBase.compute_mydir(__file__)
def prepare_executable_and_get_frame(self):
self.build()
# Get main source file
src_file = "main.cpp"
src_file_spec = lldb.SBFileSpec(src_file)
self.assertTrue(src_file_spec.IsValid(), "Main source file")
# Get the path of the executable
exe_path = self.getBuildArtifact("a.out")
# Load the executable
target = self.dbg.CreateTarget(exe_path)
self.assertTrue(target.IsValid(), VALID_TARGET)
# Break on main function
main_breakpoint = target.BreakpointCreateBySourceRegex(
"// break here", src_file_spec)
self.assertTrue(
main_breakpoint.IsValid() and main_breakpoint.GetNumLocations() >= 1,
VALID_BREAKPOINT)
# Launch the process
args = None
env = None
process = target.LaunchSimple(
args, env, self.get_process_working_directory())
self.assertTrue(process.IsValid(), PROCESS_IS_VALID)
# Get the thread of the process
self.assertTrue(
process.GetState() == lldb.eStateStopped,
PROCESS_STOPPED)
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
return thread.GetSelectedFrame()
def test_equals_operator(self):
frame = self.prepare_executable_and_get_frame()
test_result = frame.EvaluateExpression("operator==(s1, s2)")
self.assertTrue(
test_result.IsValid() and test_result.GetValue() == "false",
"operator==(s1, s2) = false")
test_result = frame.EvaluateExpression("operator==(s1, s3)")
self.assertTrue(
test_result.IsValid() and test_result.GetValue() == "true",
"operator==(s1, s3) = true")
test_result = frame.EvaluateExpression("operator==(s2, s3)")
self.assertTrue(
test_result.IsValid() and test_result.GetValue() == "false",
"operator==(s2, s3) = false")
def do_new_test(self, frame, expr, expected_value_name):
"""Evaluate a new expression, and check its result"""
expected_value = frame.FindValue(
expected_value_name, lldb.eValueTypeVariableGlobal)
self.assertTrue(expected_value.IsValid())
expected_value_addr = expected_value.AddressOf()
self.assertTrue(expected_value_addr.IsValid())
got = frame.EvaluateExpression(expr)
self.assertTrue(got.IsValid())
self.assertEqual(
got.GetValueAsUnsigned(),
expected_value_addr.GetValueAsUnsigned())
got_type = got.GetType()
self.assertTrue(got_type.IsPointerType())
self.assertEqual(got_type.GetPointeeType().GetName(), "Struct")
def test_operator_new(self):
frame = self.prepare_executable_and_get_frame()
self.do_new_test(frame, "new Struct()", "global_new_buf")
self.do_new_test(frame, "new(new_tag) Struct()", "tagged_new_buf")
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