Files
clang-p2996/lldb/test/API/functionalities/breakpoint/auto_continue/TestBreakpointAutoContinue.py
Raphael Isemann 54c2687292 [lldb] Introduce createTestTarget for creating a valid target in API tests
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
2021-05-24 16:18:44 +02:00

95 lines
3.6 KiB
Python

"""
Test that the breakpoint auto-continue flag works correctly.
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
class BreakpointAutoContinue(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
def test_breakpoint_auto_continue(self):
"""Make sure the auto continue continues with no other complications"""
self.build()
self.simple_auto_continue()
def test_auto_continue_with_command(self):
"""Add a command, make sure the command gets run"""
self.build()
self.auto_continue_with_command()
def test_auto_continue_on_location(self):
"""Set auto-continue on a location and make sure only that location continues"""
self.build()
self.auto_continue_location()
def make_target_and_bkpt(self, additional_options=None, num_expected_loc=1,
pattern="Set a breakpoint here"):
self.target = self.createTestTarget()
extra_options_txt = "--auto-continue 1 "
if additional_options:
extra_options_txt += additional_options
bpno = lldbutil.run_break_set_by_source_regexp(self, pattern,
extra_options = extra_options_txt,
num_expected_locations = num_expected_loc)
return bpno
def launch_it (self, expected_state):
error = lldb.SBError()
launch_info = self.target.GetLaunchInfo()
launch_info.SetWorkingDirectory(self.get_process_working_directory())
process = self.target.Launch(launch_info, error)
self.assertTrue(error.Success(), "Launch failed.")
state = process.GetState()
self.assertEqual(state, expected_state, "Didn't get expected state")
return process
def simple_auto_continue(self):
bpno = self.make_target_and_bkpt()
process = self.launch_it(lldb.eStateExited)
bkpt = self.target.FindBreakpointByID(bpno)
self.assertEqual(bkpt.GetHitCount(), 2, "Should have run through the breakpoint twice")
def auto_continue_with_command(self):
bpno = self.make_target_and_bkpt("-N BKPT -C 'break modify --auto-continue 0 BKPT'")
process = self.launch_it(lldb.eStateStopped)
state = process.GetState()
self.assertEqual(state, lldb.eStateStopped, "Process should be stopped")
bkpt = self.target.FindBreakpointByID(bpno)
threads = lldbutil.get_threads_stopped_at_breakpoint(process, bkpt)
self.assertEqual(len(threads), 1, "There was a thread stopped at our breakpoint")
self.assertEqual(bkpt.GetHitCount(), 2, "Should have hit the breakpoint twice")
def auto_continue_location(self):
bpno = self.make_target_and_bkpt(pattern="Set a[^ ]* breakpoint here", num_expected_loc=2)
bkpt = self.target.FindBreakpointByID(bpno)
bkpt.SetAutoContinue(False)
loc = lldb.SBBreakpointLocation()
for i in range(0,2):
func_name = bkpt.location[i].GetAddress().function.name
if func_name == "main":
loc = bkpt.location[i]
self.assertTrue(loc.IsValid(), "Didn't find a location in main")
loc.SetAutoContinue(True)
process = self.launch_it(lldb.eStateStopped)
threads = lldbutil.get_threads_stopped_at_breakpoint(process, bkpt)
self.assertEqual(len(threads), 1, "Didn't get one thread stopped at our breakpoint")
func_name = threads[0].frame[0].function.name
self.assertEqual(func_name, "call_me")