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"""
Tests expression evaluation in context of an objc class.
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
class ContextObjectObjcTestCase(TestBase):
@add_test_categories(["objc"])
def test_context_object_objc(self):
"""Tests expression evaluation in context of an objc class."""
self.build()
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
self, "// Break here", self.main_source_spec
)
frame = thread.GetFrameAtIndex(0)
#
# Test objc class variable
#
obj_val = frame.FindVariable("objcClass")
self.assertTrue(obj_val.IsValid())
obj_val = obj_val.Dereference()
self.assertTrue(obj_val.IsValid())
# Test an empty expression evaluation
value = obj_val.EvaluateExpression("")
self.assertFalse(value.IsValid())
self.assertFalse(value.GetError().Success())
# Test retrieving of a field (not a local with the same name)
value = obj_val.EvaluateExpression("field")
self.assertTrue(value.IsValid())
self.assertSuccess(value.GetError())
self.assertEqual(value.GetValueAsSigned(), 1111)
# Test if the self pointer is properly evaluated
# Test retrieving of an objcClass's property through the self pointer
value = obj_val.EvaluateExpression("self.property")
self.assertTrue(value.IsValid())
self.assertSuccess(value.GetError())
self.assertEqual(value.GetValueAsSigned(), 2222)
# Test objcClass's methods evaluation through the self pointer
value = obj_val.EvaluateExpression("[self method]")
self.assertTrue(value.IsValid())
self.assertSuccess(value.GetError())
self.assertEqual(value.GetValueAsSigned(), 3333)
# Test if we can use a computation result reference object correctly
obj_val = frame.EvaluateExpression("[ObjcClass createNew]")
self.assertTrue(obj_val.IsValid())
obj_val = obj_val.Dereference()
self.assertTrue(obj_val.IsValid())
# Test an expression evaluation on it
value = obj_val.EvaluateExpression("1")
self.assertTrue(value.IsValid())
self.assertSuccess(value.GetError())
# Test retrieving of a field on it
value = obj_val.EvaluateExpression("field")
self.assertTrue(value.IsValid())
self.assertSuccess(value.GetError())
self.assertEqual(value.GetValueAsSigned(), 1111)
def setUp(self):
TestBase.setUp(self)
self.main_source = "main.m"
self.main_source_spec = lldb.SBFileSpec(self.main_source)
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