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"""
Test lldb-dap attach request
"""
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
import lldbdap_testcase
import subprocess
import threading
import time
# Often fails on Arm Linux, but not specifically because it's Arm, something in
# process scheduling can cause a massive (minutes) delay during this test.
@skipIf(oslist=["linux"], archs=["arm$"])
class TestDAP_attach(lldbdap_testcase.DAPTestCaseBase):
def spawn(self, args):
self.process = subprocess.Popen(
args,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
)
def spawn_and_wait(self, program, delay):
time.sleep(delay)
self.spawn([program])
self.process.wait()
def continue_and_verify_pid(self):
self.do_continue()
out, _ = self.process.communicate("foo")
self.assertIn(f"pid = {self.process.pid}", out)
def test_by_pid(self):
"""
Tests attaching to a process by process ID.
"""
program = self.build_and_create_debug_adapter_for_attach()
self.spawn([program])
self.attach(pid=self.process.pid)
self.continue_and_verify_pid()
def test_by_name(self):
"""
Tests attaching to a process by process name.
"""
program = self.build_and_create_debug_adapter_for_attach()
# Use a file as a synchronization point between test and inferior.
pid_file_path = lldbutil.append_to_process_working_directory(
self, "pid_file_%d" % (int(time.time()))
)
self.spawn([program, pid_file_path])
lldbutil.wait_for_file_on_target(self, pid_file_path)
self.attach(program=program)
self.continue_and_verify_pid()
def test_by_name_waitFor(self):
"""
Tests waiting for, and attaching to a process by process name that
doesn't exist yet.
"""
program = self.build_and_create_debug_adapter_for_attach()
self.spawn_thread = threading.Thread(
target=self.spawn_and_wait,
args=(
program,
1.0,
),
)
self.spawn_thread.start()
self.attach(program=program, waitFor=True)
self.continue_and_verify_pid()
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