4570d3eba0
This has led to many test suite failures because of copy and paste where new test cases were based off of other test cases and the "mydir" variable wasn't updated. Now you can call your superclasses "compute_mydir()" function with "__file__" as the sole argument and the relative path will be computed for you. llvm-svn: 196985
99 lines
4.1 KiB
Python
99 lines
4.1 KiB
Python
"""
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Test lldb target stop-hook mechanism to see whether it fires off correctly .
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"""
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import os
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import unittest2
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import lldb
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import pexpect
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from lldbtest import *
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class StopHookMechanismTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@dsym_test
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def test_with_dsym(self):
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"""Test the stop-hook mechanism."""
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self.buildDsym()
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self.stop_hook_firing()
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@skipIfFreeBSD # llvm.org/pr15037
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@skipIfLinux # llvm.org/pr15037: stop-hooks sometimes fail to fire on Linux (disabled to avoid needless noise)
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@dwarf_test
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def test_with_dwarf(self):
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"""Test the stop-hook mechanism."""
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self.buildDwarf()
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self.stop_hook_firing()
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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 numbers inside main.cpp.
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self.begl = line_number('main.cpp', '// Set breakpoint here to test target stop-hook.')
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self.endl = line_number('main.cpp', '// End of the line range for which stop-hook is to be run.')
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self.correct_step_line = line_number ('main.cpp', '// We should stop here after stepping.')
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self.line = line_number('main.cpp', '// Another breakpoint which is outside of the stop-hook range.')
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def stop_hook_firing(self):
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"""Test the stop-hook mechanism."""
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exe = os.path.join(os.getcwd(), "a.out")
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prompt = "(lldb) "
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add_prompt = "Enter your stop hook command(s). Type 'DONE' to end.\r\n> "
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add_prompt1 = "\r\n> "
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('%s %s %s' % (self.lldbHere, self.lldbOption, exe))
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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# Set the breakpoint, followed by the target stop-hook commands.
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child.expect_exact(prompt)
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child.sendline('breakpoint set -f main.cpp -l %d' % self.begl)
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child.expect_exact(prompt)
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child.sendline('breakpoint set -f main.cpp -l %d' % self.line)
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child.expect_exact(prompt)
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child.sendline('target stop-hook add -f main.cpp -l %d -e %d' % (self.begl, self.endl))
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child.expect_exact(add_prompt)
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child.sendline('expr ptr')
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child.expect_exact(add_prompt1)
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child.sendline('DONE')
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child.expect_exact(prompt)
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child.sendline('target stop-hook list')
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# Now run the program, expect to stop at the the first breakpoint which is within the stop-hook range.
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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child.sendline('thread step-over')
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# Expecting to find the output emitted by the firing of our stop hook.
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child.expect_exact('(void *) $')
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# This is orthogonal to the main stop hook test, but this example shows a bug in
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# CLANG where the line table entry for the "return -1" actually includes some code
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# from the other branch of the if/else, so we incorrectly stop at the "return -1" line.
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# I fixed that in lldb and I'm sticking in a test here because I don't want to have to
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# make up a whole nother test case for it.
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child.sendline('frame info')
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child.expect_exact('at main.cpp:%d'%self.correct_step_line)
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# Now continue the inferior, we'll stop at another breakpoint which is outside the stop-hook range.
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child.sendline('process continue')
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child.expect_exact('// Another breakpoint which is outside of the stop-hook range.')
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#self.DebugPExpect(child)
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child.sendline('thread step-over')
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child.expect_exact('// Another breakpoint which is outside of the stop-hook range.')
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#self.DebugPExpect(child)
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# Verify that the 'Stop Hooks' mechanism is NOT BEING fired off.
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self.expect(child.before, exe=False, matching=False,
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substrs = ['(void *) $'])
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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