90 lines
2.8 KiB
Python
90 lines
2.8 KiB
Python
"""
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Use lldb Python API to make sure the dynamic checkers are doing their jobs.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ObjCCheckerTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.source_name = 'main.m'
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@add_test_categories(['pyapi'])
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def test_objc_checker(self):
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"""Test that checkers catch unrecognized selectors"""
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if self.getArchitecture() == 'i386':
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self.skipTest("requires Objective-C 2.0 runtime")
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Create a target from the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Set up our breakpoints:
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main_bkpt = target.BreakpointCreateBySourceRegex(
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"Set a breakpoint here.", lldb.SBFileSpec(self.source_name))
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self.assertTrue(main_bkpt and
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main_bkpt.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process.GetState() == lldb.eStateStopped,
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PROCESS_STOPPED)
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threads = lldbutil.get_threads_stopped_at_breakpoint(
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process, main_bkpt)
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self.assertTrue(len(threads) == 1)
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thread = threads[0]
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#
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# The class Simple doesn't have a count method. Make sure that we don't
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# actually try to send count but catch it as an unrecognized selector.
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frame = thread.GetFrameAtIndex(0)
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expr_value = frame.EvaluateExpression("(int) [my_simple count]", False)
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expr_error = expr_value.GetError()
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self.assertTrue(expr_error.Fail())
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# Make sure the call produced no NSLog stdout.
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stdout = process.GetSTDOUT(100)
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self.assertTrue(stdout is None or (len(stdout) == 0))
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# Make sure the error is helpful:
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err_string = expr_error.GetCString()
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self.assertTrue("selector" in err_string)
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#
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# Check that we correctly insert the checker for an
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# ObjC method with the struct return convention.
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# Getting this wrong would cause us to call the checker
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# with the wrong arguments, and the checker would crash
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# So I'm just checking "expression runs successfully" here:
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#
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expr_value = frame.EvaluateExpression("[my_simple getBigStruct]", False)
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expr_error = expr_value.GetError()
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self.assertTrue(expr_error.Success())
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