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"""
Use lldb Python API to make sure the dynamic checkers are doing their jobs.
"""
from __future__ import print_function
import os, time
import re
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
class ObjCCheckerTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break for main.c.
self.source_name = 'main.m'
@skipUnlessDarwin
@add_test_categories(['pyapi'])
def test_objc_checker(self):
"""Test that checkers catch unrecognized selectors"""
if self.getArchitecture() == 'i386':
self.skipTest("requires Objective-C 2.0 runtime")
self.build()
exe = os.path.join(os.getcwd(), "a.out")
# Create a target from the debugger.
target = self.dbg.CreateTarget (exe)
self.assertTrue(target, VALID_TARGET)
# Set up our breakpoints:
main_bkpt = target.BreakpointCreateBySourceRegex ("Set a breakpoint here.", lldb.SBFileSpec (self.source_name))
self.assertTrue(main_bkpt and
main_bkpt.GetNumLocations() == 1,
VALID_BREAKPOINT)
# Now launch the process, and do not stop at the entry point.
process = target.LaunchSimple (None, None, self.get_process_working_directory())
self.assertTrue(process.GetState() == lldb.eStateStopped,
PROCESS_STOPPED)
threads = lldbutil.get_threads_stopped_at_breakpoint (process, main_bkpt)
self.assertTrue (len(threads) == 1)
thread = threads[0]
#
# The class Simple doesn't have a count method. Make sure that we don't
# actually try to send count but catch it as an unrecognized selector.
frame = thread.GetFrameAtIndex(0)
expr_value = frame.EvaluateExpression("(int) [my_simple count]", False)
expr_error = expr_value.GetError()
self.assertTrue (expr_error.Fail())
# Make sure the call produced no NSLog stdout.
stdout = process.GetSTDOUT(100)
self.assertTrue (stdout is None or (len(stdout) == 0))
# Make sure the error is helpful:
err_string = expr_error.GetCString()
self.assertTrue ("selector" in err_string)
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