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"""Test the Go OS Plugin."""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestGoASTContext(TestBase):
mydir = TestBase.compute_mydir(__file__)
@add_test_categories(['pyapi'])
@skipIfFreeBSD # llvm.org/pr24895 triggers assertion failure
@skipIfRemote # Not remote test suite ready
@no_debug_info_test
@skipUnlessGoInstalled
def test_goroutine_plugin(self):
"""Test goroutine as threads support."""
self.buildGo()
self.launchProcess()
self.check_goroutines()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers to break inside main().
self.main_source = "main.go"
self.break_line1 = line_number(self.main_source, '// stop1')
self.break_line2 = line_number(self.main_source, '// stop2')
self.break_line3 = line_number(self.main_source, '// stop3')
def launchProcess(self):
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
self.bpt1 = target.BreakpointCreateByLocation(
self.main_source, self.break_line1)
self.assertTrue(self.bpt1, VALID_BREAKPOINT)
self.bpt2 = target.BreakpointCreateByLocation(
self.main_source, self.break_line2)
self.assertTrue(self.bpt2, VALID_BREAKPOINT)
self.bpt3 = target.BreakpointCreateByLocation(
self.main_source, self.break_line3)
self.assertTrue(self.bpt3, VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
# The stop reason of the thread should be breakpoint.
thread_list = lldbutil.get_threads_stopped_at_breakpoint(
process, self.bpt1)
# Make sure we stopped at the first breakpoint.
self.assertTrue(
len(thread_list) != 0,
"No thread stopped at our breakpoint.")
self.assertTrue(len(thread_list) == 1,
"More than one thread stopped at our breakpoint.")
frame = thread_list[0].GetFrameAtIndex(0)
self.assertTrue(frame, "Got a valid frame 0 frame.")
def check_goroutines(self):
self.assertLess(len(self.process().threads), 20)
self.process().Continue()
# Make sure we stopped at the 2nd breakpoint
thread_list = lldbutil.get_threads_stopped_at_breakpoint(
self.process(), self.bpt2)
self.assertTrue(
len(thread_list) != 0,
"No thread stopped at our breakpoint.")
self.assertTrue(len(thread_list) == 1,
"More than one thread stopped at our breakpoint.")
# There's (at least) 21 goroutines.
self.assertGreater(len(self.process().threads), 20)
# self.dbg.HandleCommand("log enable lldb os")
# Now test that stepping works if the memory thread moves to a
# different backing thread.
for i in list(range(11)):
self.thread().StepOver()
self.assertEqual(
lldb.eStopReasonPlanComplete,
self.thread().GetStopReason(),
self.thread().GetStopDescription(100))
# Disable the plugin and make sure the goroutines disappear
self.dbg.HandleCommand(
"settings set plugin.os.goroutines.enable false")
self.thread().StepInstruction(False)
self.assertLess(len(self.process().threads), 20)
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