54c2687292
At the moment nearly every test calls something similar to
`self.dbg.CreateTarget(self.getBuildArtifact("a.out"))` and them sometimes
checks if the created target is actually valid with something like
`self.assertTrue(target.IsValid(), "some useless text")`.
Beside being really verbose the error messages generated by this pattern are
always just indicating that the target failed to be created but now why.
This patch introduces a helper function `createTestTarget` to our Test class
that creates the target with the much more verbose `CreateTarget` overload that
gives us back an SBError (with a fancy error). If the target couldn't be created
the function prints out the SBError that LLDB returned and asserts for us. It
also defaults to the "a.out" build artifact path that nearly all tests are using
to avoid to hardcode "a.out" in every test.
I converted a bunch of tests to the new function but I'll do the rest of the
test suite as follow ups.
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D102771
107 lines
4.0 KiB
Python
107 lines
4.0 KiB
Python
"""Test that adding, deleting and modifying watchpoints sends the appropriate events."""
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from __future__ import print_function
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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 TestWatchpointEvents (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 numbers that we will step to in main:
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self.main_source = "main.c"
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@add_test_categories(['pyapi'])
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def test_with_python_api(self):
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"""Test that adding, deleting and modifying watchpoints sends the appropriate events."""
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self.build()
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target = self.createTestTarget()
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self.main_source_spec = lldb.SBFileSpec(self.main_source)
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break_in_main = target.BreakpointCreateBySourceRegex(
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'// Put a breakpoint here.', self.main_source_spec)
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self.assertTrue(break_in_main, VALID_BREAKPOINT)
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# Now launch the process, and do not stop at 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, PROCESS_IS_VALID)
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# The stop reason of the thread should be breakpoint.
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threads = lldbutil.get_threads_stopped_at_breakpoint(
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process, break_in_main)
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if len(threads) != 1:
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self.fail("Failed to stop at first breakpoint in main.")
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thread = threads[0]
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frame = thread.GetFrameAtIndex(0)
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local_var = frame.FindVariable("local_var")
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self.assertTrue(local_var.IsValid())
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self.listener = lldb.SBListener("com.lldb.testsuite_listener")
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self.target_bcast = target.GetBroadcaster()
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self.target_bcast.AddListener(
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self.listener, lldb.SBTarget.eBroadcastBitWatchpointChanged)
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self.listener.StartListeningForEvents(
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self.target_bcast, lldb.SBTarget.eBroadcastBitWatchpointChanged)
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error = lldb.SBError()
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local_watch = local_var.Watch(True, False, True, error)
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if not error.Success():
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self.fail(
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"Failed to make watchpoint for local_var: %s" %
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(error.GetCString()))
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self.GetWatchpointEvent(lldb.eWatchpointEventTypeAdded)
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# Now change some of the features of this watchpoint and make sure we
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# get events:
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local_watch.SetEnabled(False)
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self.GetWatchpointEvent(lldb.eWatchpointEventTypeDisabled)
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local_watch.SetEnabled(True)
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self.GetWatchpointEvent(lldb.eWatchpointEventTypeEnabled)
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local_watch.SetIgnoreCount(10)
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self.GetWatchpointEvent(lldb.eWatchpointEventTypeIgnoreChanged)
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condition = "1 == 2"
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local_watch.SetCondition(condition)
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self.GetWatchpointEvent(lldb.eWatchpointEventTypeConditionChanged)
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self.assertEqual(local_watch.GetCondition(), condition,
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'make sure watchpoint condition is "' + condition + '"')
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def GetWatchpointEvent(self, event_type):
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# We added a watchpoint so we should get a watchpoint added event.
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event = lldb.SBEvent()
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success = self.listener.WaitForEvent(1, event)
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self.assertTrue(success, "Successfully got watchpoint event")
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self.assertTrue(
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lldb.SBWatchpoint.EventIsWatchpointEvent(event),
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"Event is a watchpoint event.")
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found_type = lldb.SBWatchpoint.GetWatchpointEventTypeFromEvent(event)
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self.assertEqual(
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found_type, event_type,
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"Event is not correct type, expected: %d, found: %d" %
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(event_type,
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found_type))
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# There shouldn't be another event waiting around:
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found_event = self.listener.PeekAtNextEventForBroadcasterWithType(
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self.target_bcast, lldb.SBTarget.eBroadcastBitBreakpointChanged, event)
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if found_event:
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print("Found an event I didn't expect: ", event)
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self.assertTrue(not found_event, "Only one event per change.")
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