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

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import os
import threading
import time
import pexpect
import serial
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from tiny_test_fw import Utility
import ttfw_idf
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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 board/esp32-wrover-kit-3.3v.cfg'
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log_file = os.path.join(proj_path, 'openocd.log')
super(OCDProcess, self).__init__(cmd, log_file)
patterns = ['Info : Listening on port 3333 for gdb connections',
'Error: type \'esp32\' is missing virt2phys']
try:
while True:
i = self.p.expect_exact(patterns, timeout=30)
# TIMEOUT or EOF exceptions will be thrown upon other errors
if i == 0:
Utility.console_log('openocd is listening for gdb connections')
break # success
elif i == 1:
Utility.console_log('Ignoring error: "{}"'.format(patterns[i]))
# this error message is ignored because it is not a fatal error
except Exception:
Utility.console_log('openocd initialization has failed', 'R')
raise
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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')
elif i == 1:
raise RuntimeError('Load has failed. Please examine the logs.')
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else:
Utility.console_log('i = {}'.format(i))
Utility.console_log(str(self.p))
# This really should not happen. TIMEOUT and EOF failures are exceptions.
raise RuntimeError('An unknown error has occurred. Please examine the logs.')
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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')
@ttfw_idf.idf_example_test(env_tag="test_jtag_arm")
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def test_examples_loadable_elf(env, extra_data):
rel_project_path = os.path.join('examples', 'get-started', 'hello_world')
app_files = ['hello-world.elf', 'partition_table/partition-table.bin']
example = ttfw_idf.LoadableElfExample(rel_project_path, app_files, target="esp32")
idf_path = example.get_sdk_path()
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proj_path = os.path.join(idf_path, rel_project_path)
sdkconfig = example.get_sdkconfig()
elf_path = os.path.join(example.binary_path, 'hello-world.elf')
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esp_log_path = os.path.join(proj_path, 'esp.log')
assert(sdkconfig['CONFIG_IDF_TARGET_ESP32'] == 'y'), "Only ESP32 target is supported"
assert(sdkconfig['CONFIG_APP_BUILD_TYPE_ELF_RAM'] == 'y'), "ELF should be built with CONFIG_APP_BUILD_TYPE_ELF_RAM"
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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()