esp-idf/examples/get-started/hello_world/loadable_elf_example_test.py

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2019-07-22 10:04:03 -04:00
import os
import pexpect
import serial
import sys
import threading
import time
try:
import IDF
except ImportError:
test_fw_path = os.getenv('TEST_FW_PATH')
if test_fw_path and test_fw_path not in sys.path:
sys.path.insert(0, test_fw_path)
import IDF
import Utility
class CustomProcess(object):
def __init__(self, cmd, logfile):
self.f = open(logfile, 'wb')
self.p = pexpect.spawn(cmd, timeout=60, logfile=self.f)
def __enter__(self):
return self
def close(self):
self.p.terminate(force=True)
def __exit__(self, type, value, traceback):
self.close()
self.f.close()
class OCDProcess(CustomProcess):
def __init__(self, proj_path):
cmd = 'openocd -f interface/ftdi/esp32_devkitj_v1.cfg -f board/esp-wroom-32.cfg'
log_file = os.path.join(proj_path, 'openocd.log')
super(OCDProcess, self).__init__(cmd, log_file)
i = self.p.expect_exact(['Info : Listening on port 3333 for gdb connections', 'Error:'])
if i == 0:
Utility.console_log('openocd is listening for gdb connections')
else:
raise RuntimeError('openocd initialization has failed')
def close(self):
try:
self.p.sendcontrol('c')
self.p.expect_exact('shutdown command invoked')
except Exception:
Utility.console_log('openocd needs to be killed', 'O')
super(OCDProcess, self).close()
class GDBProcess(CustomProcess):
def __init__(self, proj_path, elf_path):
cmd = 'xtensa-esp32-elf-gdb -x {} --directory={} {}'.format(os.path.join(proj_path, '.gdbinit.ci'),
os.path.join(proj_path, 'main'),
elf_path)
log_file = os.path.join(proj_path, 'gdb.log')
super(GDBProcess, self).__init__(cmd, log_file)
self.p.sendline('') # it is for "---Type <return> to continue, or q <return> to quit---"
i = self.p.expect_exact(['Thread 1 hit Temporary breakpoint 2, app_main ()',
'Load failed'])
if i == 0:
Utility.console_log('gdb is at breakpoint')
else:
raise RuntimeError('Load failed: probably the ELF file was not built for loading with gdb')
self.p.expect_exact('(gdb)')
def close(self):
try:
self.p.sendline('q')
self.p.expect_exact('Quit anyway? (y or n)')
self.p.sendline('y')
self.p.expect_exact('Ending remote debugging.')
except Exception:
Utility.console_log('gdb needs to be killed', 'O')
super(GDBProcess, self).close()
def break_till_end(self):
self.p.sendline('b esp_restart')
self.p.sendline('c')
self.p.expect_exact('Thread 1 hit Breakpoint 3, esp_restart ()')
class SerialThread(object):
def run(self, log_path, exit_event):
with serial.Serial('/dev/ttyUSB1', 115200) as ser, open(log_path, 'wb') as f:
while True:
f.write(ser.read(ser.in_waiting))
if exit_event.is_set():
break
time.sleep(1)
def __init__(self, log_path):
self.exit_event = threading.Event()
self.t = threading.Thread(target=self.run, args=(log_path, self.exit_event,))
self.t.start()
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.exit_event.set()
self.t.join(60)
if self.t.is_alive():
Utility.console_log('The pyserial thread is still alive', 'O')
@IDF.idf_example_test(env_tag="test_jtag_arm")
def test_examples_loadable_elf(env, extra_data):
idf_path = os.environ['IDF_PATH']
rel_project_path = os.path.join('examples', 'get-started', 'hello_world')
proj_path = os.path.join(idf_path, rel_project_path)
elf_path = os.path.join(IDF.Example(rel_project_path).get_binary_path(rel_project_path), 'hello-world.elf')
esp_log_path = os.path.join(proj_path, 'esp.log')
with SerialThread(esp_log_path):
with OCDProcess(proj_path), GDBProcess(proj_path, elf_path) as gdb:
gdb.break_till_end()
if pexpect.run('grep "Restarting now." {}'.format(esp_log_path), withexitstatus=True)[1]:
raise RuntimeError('Expected output from ESP was not received')
if __name__ == '__main__':
test_examples_loadable_elf()