123 lines
4.6 KiB
Python
123 lines
4.6 KiB
Python
"""
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Make sure the getting a variable path works and doesn't crash.
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"""
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import lldb
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import lldbsuite.test.lldbutil as lldbutil
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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class TestVarPath(TestBase):
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# If your test case doesn't stress debug info, then
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# set this to true. That way it won't be run once for
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# each debug info format.
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NO_DEBUG_INFO_TESTCASE = True
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def test_frame_var(self):
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self.build()
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self.do_test()
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def verify_point(self, frame, var_name, var_typename, x_value, y_value):
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v = frame.GetValueForVariablePath(var_name)
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self.assertSuccess(v.GetError(), "Make sure we find '%s'" % (var_name))
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self.assertEquals(
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v.GetType().GetName(),
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var_typename,
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"Make sure '%s' has type '%s'" % (var_name, var_typename),
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)
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if "*" in var_typename:
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valid_prefix = var_name + "->"
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invalid_prefix = var_name + "."
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else:
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valid_prefix = var_name + "."
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invalid_prefix = var_name + "->"
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valid_x_path = valid_prefix + "x"
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valid_y_path = valid_prefix + "y"
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invalid_x_path = invalid_prefix + "x"
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invalid_y_path = invalid_prefix + "y"
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invalid_m_path = invalid_prefix + "m"
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v = frame.GetValueForVariablePath(valid_x_path)
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self.assertSuccess(v.GetError(), "Make sure we find '%s'" % (valid_x_path))
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self.assertEquals(
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v.GetValue(),
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str(x_value),
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"Make sure '%s' has a value of %i" % (valid_x_path, x_value),
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)
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self.assertEquals(
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v.GetType().GetName(),
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"int",
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"Make sure '%s' has type 'int'" % (valid_x_path),
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)
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v = frame.GetValueForVariablePath(invalid_x_path)
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self.assertTrue(
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v.GetError().Fail(), "Make sure we don't find '%s'" % (invalid_x_path)
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)
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v = frame.GetValueForVariablePath(valid_y_path)
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self.assertSuccess(v.GetError(), "Make sure we find '%s'" % (valid_y_path))
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self.assertEquals(
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v.GetValue(),
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str(y_value),
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"Make sure '%s' has a value of %i" % (valid_y_path, y_value),
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)
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self.assertEquals(
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v.GetType().GetName(),
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"int",
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"Make sure '%s' has type 'int'" % (valid_y_path),
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)
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v = frame.GetValueForVariablePath(invalid_y_path)
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self.assertTrue(
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v.GetError().Fail(), "Make sure we don't find '%s'" % (invalid_y_path)
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)
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v = frame.GetValueForVariablePath(invalid_m_path)
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self.assertTrue(
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v.GetError().Fail(), "Make sure we don't find '%s'" % (invalid_m_path)
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)
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def do_test(self):
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "// Set a breakpoint here", lldb.SBFileSpec("main.cpp")
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)
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frame = thread.GetFrameAtIndex(0)
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v = frame.GetValueForVariablePath("no_such_variable")
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self.assertTrue(
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v.GetError().Fail(), "Make sure we don't find 'no_such_variable'"
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)
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# Test an instance
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self.verify_point(frame, "pt", "Point", 1, 2)
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# Test a pointer
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self.verify_point(frame, "pt_ptr", "Point *", 3030, 4040)
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# Test using a pointer as an array
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self.verify_point(frame, "pt_ptr[-1]", "Point", 1010, 2020)
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self.verify_point(frame, "pt_ptr[0]", "Point", 3030, 4040)
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self.verify_point(frame, "pt_ptr[1]", "Point", 5050, 6060)
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# Test arrays
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v = frame.GetValueForVariablePath("points")
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self.assertSuccess(v.GetError(), "Make sure we find 'points'")
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self.verify_point(frame, "points[0]", "Point", 1010, 2020)
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self.verify_point(frame, "points[1]", "Point", 3030, 4040)
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self.verify_point(frame, "points[2]", "Point", 5050, 6060)
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v = frame.GetValueForVariablePath("points[0]+5")
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self.assertTrue(
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v.GetError().Fail(),
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"Make sure we do not ignore characters between ']' and the end",
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)
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# Test a reference
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self.verify_point(frame, "pt_ref", "Point &", 1, 2)
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v = frame.GetValueForVariablePath("pt_sp")
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self.assertSuccess(v.GetError(), "Make sure we find 'pt_sp'")
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# Make sure we don't crash when looking for non existant child
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# in type with synthetic children. This used to cause a crash.
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if not self.isAArch64Windows():
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v = frame.GetValueForVariablePath("pt_sp->not_valid_child")
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self.assertTrue(
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v.GetError().Fail(), "Make sure we don't find 'pt_sp->not_valid_child'"
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)
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