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example_test.py
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import re
import os
import socket
import http.server
from threading import Thread
import ssl
from tiny_test_fw import DUT
import ttfw_idf
import random
import subprocess
server_cert = "-----BEGIN CERTIFICATE-----\n" \
"MIIDXTCCAkWgAwIBAgIJAP4LF7E72HakMA0GCSqGSIb3DQEBCwUAMEUxCzAJBgNV\n"\
"BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX\n"\
"aWRnaXRzIFB0eSBMdGQwHhcNMTkwNjA3MDk1OTE2WhcNMjAwNjA2MDk1OTE2WjBF\n"\
"MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50\n"\
"ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB\n"\
"CgKCAQEAlzfCyv3mIv7TlLkObxunKfCdrJ/zgdANrsx0RBtpEPhV560hWJ0fEin0\n"\
"nIOMpJSiF9E6QsPdr6Q+eogH4XnOMU9JE+iG743N1dPfGEzJvRlyct/Ck8SswKPC\n"\
"9+VXsnOdZmUw9y/xtANbURA/TspvPzz3Avv382ffffrJGh7ooOmaZSCZFlSYHLZA\n"\
"w/XlRr0sSRbLpFGY0gXjaAV8iHHiPDYLy4kZOepjV9U51xi+IGsL4w75zuMgsHyF\n"\
"3nJeGYHgtGVBrkL0ZKG5udY0wcBjysjubDJC4iSlNiq2HD3fhs7j6CZddV2v845M\n"\
"lVKNxP0kO4Uj4D8r+5USWC8JKfAwxQIDAQABo1AwTjAdBgNVHQ4EFgQU6OE7ssfY\n"\
"IIPTDThiUoofUpsD5NwwHwYDVR0jBBgwFoAU6OE7ssfYIIPTDThiUoofUpsD5Nww\n"\
"DAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAXIlHS/FJWfmcinUAxyBd\n"\
"/xd5Lu8ykeru6oaUCci+Vk9lyoMMES7lQ+b/00d5x7AcTawkTil9EWpBTPTOTraA\n"\
"lzJMQhNKmSLk0iIoTtAJtSZgUSpIIozqK6lenxQQDsHbXKU6h+u9H6KZE8YcjsFl\n"\
"6vL7sw9BVotw/VxfgjQ5OSGLgoLrdVT0z5C2qOuwOgz1c7jNiJhtMdwN+cOtnJp2\n"\
"fuBgEYyE3eeuWogvkWoDcIA8r17Ixzkpq2oJsdvZcHZPIZShPKW2SHUsl98KDemu\n"\
"y0pQyExmQUbwKE4vbFb9XuWCcL9XaOHQytyszt2DeD67AipvoBwVU7/LBOvqnsmy\n"\
"hA==\n"\
"-----END CERTIFICATE-----\n"
server_key = "-----BEGIN PRIVATE KEY-----\n"\
"MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQCXN8LK/eYi/tOU\n"\
"uQ5vG6cp8J2sn/OB0A2uzHREG2kQ+FXnrSFYnR8SKfScg4yklKIX0TpCw92vpD56\n"\
"iAfhec4xT0kT6Ibvjc3V098YTMm9GXJy38KTxKzAo8L35Veyc51mZTD3L/G0A1tR\n"\
"ED9Oym8/PPcC+/fzZ999+skaHuig6ZplIJkWVJgctkDD9eVGvSxJFsukUZjSBeNo\n"\
"BXyIceI8NgvLiRk56mNX1TnXGL4gawvjDvnO4yCwfIXecl4ZgeC0ZUGuQvRkobm5\n"\
"1jTBwGPKyO5sMkLiJKU2KrYcPd+GzuPoJl11Xa/zjkyVUo3E/SQ7hSPgPyv7lRJY\n"\
"Lwkp8DDFAgMBAAECggEAfBhAfQE7mUByNbxgAgI5fot9eaqR1Nf+QpJ6X2H3KPwC\n"\
"02sa0HOwieFwYfj6tB1doBoNq7i89mTc+QUlIn4pHgIowHO0OGawomeKz5BEhjCZ\n"\
"4XeLYGSoODary2+kNkf2xY8JTfFEcyvGBpJEwc4S2VyYgRRx+IgnumTSH+N5mIKZ\n"\
"SXWNdZIuHEmkwod+rPRXs6/r+PH0eVW6WfpINEbr4zVAGXJx2zXQwd2cuV1GTJWh\n"\
"cPVOXLu+XJ9im9B370cYN6GqUnR3fui13urYbnWnEf3syvoH/zuZkyrVChauoFf8\n"\
"8EGb74/HhXK7Q2s8NRakx2c7OxQifCbcy03liUMmyQKBgQDFAob5B/66N4Q2cq/N\n"\
"MWPf98kYBYoLaeEOhEJhLQlKk0pIFCTmtpmUbpoEes2kCUbH7RwczpYko8tlKyoB\n"\
"6Fn6RY4zQQ64KZJI6kQVsjkYpcP/ihnOY6rbds+3yyv+4uPX7Eh9sYZwZMggE19M\n"\
"CkFHkwAjiwqhiiSlUxe20sWmowKBgQDEfx4lxuFzA1PBPeZKGVBTxYPQf+DSLCre\n"\
"ZFg3ZmrxbCjRq1O7Lra4FXWD3dmRq7NDk79JofoW50yD8wD7I0B7opdDfXD2idO8\n"\
"0dBnWUKDr2CAXyoLEINce9kJPbx4kFBQRN9PiGF7VkDQxeQ3kfS8CvcErpTKCOdy\n"\
"5wOwBTwJdwKBgDiTFTeGeDv5nVoVbS67tDao7XKchJvqd9q3WGiXikeELJyuTDqE\n"\
"zW22pTwMF+m3UEAxcxVCrhMvhkUzNAkANHaOatuFHzj7lyqhO5QPbh4J3FMR0X9X\n"\
"V8VWRSg+jA/SECP9koOl6zlzd5Tee0tW1pA7QpryXscs6IEhb3ns5R2JAoGAIkzO\n"\
"RmnhEOKTzDex611f2D+yMsMfy5BKK2f4vjLymBH5TiBKDXKqEpgsW0huoi8Gq9Uu\n"\
"nvvXXAgkIyRYF36f0vUe0nkjLuYAQAWgC2pZYgNLJR13iVbol0xHJoXQUHtgiaJ8\n"\
"GLYFzjHQPqFMpSalQe3oELko39uOC1CoJCHFySECgYBeycUnRBikCO2n8DNhY4Eg\n"\
"9Y3oxcssRt6ea5BZwgW2eAYi7/XqKkmxoSoOykUt3MJx9+EkkrL17bxFSpkj1tvL\n"\
"qvxn7egtsKjjgGNAxwXC4MwCvhveyUQQxtQb8AqGrGqo4jEEN0L15cnP38i2x1Uo\n"\
"muhfskWf4MABV0yTUaKcGg==\n"\
"-----END PRIVATE KEY-----\n"
def get_my_ip():
s1 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s1.connect(("8.8.8.8", 80))
my_ip = s1.getsockname()[0]
s1.close()
return my_ip
def get_server_status(host_ip, port):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_status = sock.connect_ex((host_ip, port))
sock.close()
if server_status == 0:
return True
return False
def create_file(server_file, file_data):
with open(server_file, "w+") as file:
file.write(file_data)
def get_ca_cert(ota_image_dir):
os.chdir(ota_image_dir)
server_file = os.path.join(ota_image_dir, "server_cert.pem")
create_file(server_file, server_cert)
key_file = os.path.join(ota_image_dir, "server_key.pem")
create_file(key_file, server_key)
return server_file, key_file
def https_request_handler():
"""
Returns a request handler class that handles broken pipe exception
"""
class RequestHandler(http.server.SimpleHTTPRequestHandler):
def finish(self):
try:
if not self.wfile.closed:
self.wfile.flush()
self.wfile.close()
except socket.error:
pass
self.rfile.close()
def handle(self):
try:
http.server.BaseHTTPRequestHandler.handle(self)
except socket.error:
pass
return RequestHandler
def start_https_server(ota_image_dir, server_ip, server_port):
server_file, key_file = get_ca_cert(ota_image_dir)
requestHandler = https_request_handler()
httpd = http.server.HTTPServer((server_ip, server_port), requestHandler)
httpd.socket = ssl.wrap_socket(httpd.socket,
keyfile=key_file,
certfile=server_file, server_side=True)
httpd.serve_forever()
def start_chunked_server(ota_image_dir, server_port):
server_file, key_file = get_ca_cert(ota_image_dir)
chunked_server = subprocess.Popen(["openssl", "s_server", "-WWW", "-key", key_file, "-cert", server_file, "-port", str(server_port)])
return chunked_server
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_native_ota_example(env, extra_data):
"""
This is a positive test case, which downloads complete binary file multiple number of times.
Number of iterations can be specified in variable iterations.
steps: |
1. join AP
2. Fetch OTA image over HTTPS
3. Reboot with the new OTA image
"""
dut1 = env.get_dut("native_ota_example", "examples/system/ota/native_ota_example", dut_class=ttfw_idf.ESP32DUT)
server_port = 8002
# No. of times working of application to be validated
iterations = 3
# File to be downloaded. This file is generated after compilation
bin_name = "native_ota.bin"
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, bin_name)
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("native_ota_bin_size", "{}KB".format(bin_size // 1024))
ttfw_idf.check_performance("native_ota_bin_size", bin_size // 1024, dut1.TARGET)
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = Thread(target=start_https_server, args=(dut1.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut1.start_app()
for i in range(iterations):
dut1.expect("Loaded app from partition at offset", timeout=30)
try:
ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=30)
print("Connected to AP with IP: {}".format(ip_address))
except DUT.ExpectTimeout:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
thread1.close()
dut1.expect("Starting OTA example", timeout=30)
print("writing to device: {}".format("https://" + host_ip + ":" + str(server_port) + "/" + bin_name))
dut1.write("https://" + host_ip + ":" + str(server_port) + "/" + bin_name)
dut1.expect("Loaded app from partition at offset", timeout=60)
dut1.expect("Starting OTA example", timeout=30)
dut1.reset()
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_native_ota_example_truncated_bin(env, extra_data):
"""
Working of OTA if binary file is truncated is validated in this test case.
Application should return with error message in this case.
steps: |
1. join AP
2. Generate truncated binary file
3. Fetch OTA image over HTTPS
4. Check working of code if bin is truncated
"""
dut1 = env.get_dut("native_ota_example", "examples/system/ota/native_ota_example", dut_class=ttfw_idf.ESP32DUT)
server_port = 8002
# Original binary file generated after compilation
bin_name = "native_ota.bin"
# Truncated binary file to be generated from original binary file
truncated_bin_name = "truncated.bin"
# Size of truncated file to be grnerated. This value can range from 288 bytes (Image header size) to size of original binary file
# truncated_bin_size is set to 64000 to reduce consumed by the test case
truncated_bin_size = 64000
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, bin_name)
f = open(binary_file, "rb+")
fo = open(os.path.join(dut1.app.binary_path, truncated_bin_name), "wb+")
fo.write(f.read(truncated_bin_size))
fo.close()
f.close()
binary_file = os.path.join(dut1.app.binary_path, truncated_bin_name)
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("native_ota_bin_size", "{}KB".format(bin_size // 1024))
ttfw_idf.check_performance("native_ota_bin_size", bin_size // 1024, dut1.TARGET)
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = Thread(target=start_https_server, args=(dut1.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut1.start_app()
dut1.expect("Loaded app from partition at offset", timeout=30)
try:
ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=60)
print("Connected to AP with IP: {}".format(ip_address))
except DUT.ExpectTimeout:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut1.expect("Starting OTA example", timeout=30)
print("writing to device: {}".format("https://" + host_ip + ":" + str(server_port) + "/" + truncated_bin_name))
dut1.write("https://" + host_ip + ":" + str(server_port) + "/" + truncated_bin_name)
dut1.expect("native_ota_example: Image validation failed, image is corrupted", timeout=20)
os.remove(binary_file)
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_native_ota_example_truncated_header(env, extra_data):
"""
Working of OTA if headers of binary file are truncated is vaildated in this test case.
Application should return with error message in this case.
steps: |
1. join AP
2. Generate binary file with truncated headers
3. Fetch OTA image over HTTPS
4. Check working of code if headers are not sent completely
"""
dut1 = env.get_dut("native_ota_example", "examples/system/ota/native_ota_example", dut_class=ttfw_idf.ESP32DUT)
server_port = 8002
# Original binary file generated after compilation
bin_name = "native_ota.bin"
# Truncated binary file to be generated from original binary file
truncated_bin_name = "truncated_header.bin"
# Size of truncated file to be grnerated. This value should be less than 288 bytes (Image header size)
truncated_bin_size = 180
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, bin_name)
f = open(binary_file, "rb+")
fo = open(os.path.join(dut1.app.binary_path, truncated_bin_name), "wb+")
fo.write(f.read(truncated_bin_size))
fo.close()
f.close()
binary_file = os.path.join(dut1.app.binary_path, truncated_bin_name)
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("native_ota_bin_size", "{}KB".format(bin_size // 1024))
ttfw_idf.check_performance("native_ota_bin_size", bin_size // 1024, dut1.TARGET)
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = Thread(target=start_https_server, args=(dut1.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut1.start_app()
dut1.expect("Loaded app from partition at offset", timeout=30)
try:
ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=60)
print("Connected to AP with IP: {}".format(ip_address))
except DUT.ExpectTimeout:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut1.expect("Starting OTA example", timeout=30)
print("writing to device: {}".format("https://" + host_ip + ":" + str(server_port) + "/" + truncated_bin_name))
dut1.write("https://" + host_ip + ":" + str(server_port) + "/" + truncated_bin_name)
dut1.expect("native_ota_example: received package is not fit len", timeout=20)
os.remove(binary_file)
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_native_ota_example_random(env, extra_data):
"""
Working of OTA if random data is added in binary file are validated in this test case.
Magic byte verification should fail in this case.
steps: |
1. join AP
2. Generate random binary image
3. Fetch OTA image over HTTPS
4. Check working of code for random binary file
"""
dut1 = env.get_dut("native_ota_example", "examples/system/ota/native_ota_example", dut_class=ttfw_idf.ESP32DUT)
server_port = 8002
# Random binary file to be generated
random_bin_name = "random.bin"
# Size of random binary file. 32000 is choosen, to reduce the time required to run the test-case
random_bin_size = 32000
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, random_bin_name)
fo = open(binary_file, "w+")
# First byte of binary file is always set to zero. If first byte is generated randomly,
# in some cases it may generate 0xE9 which will result in failure of testcase.
fo.write(str(0))
for i in range(random_bin_size - 1):
fo.write(str(random.randrange(0,255,1)))
fo.close()
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("native_ota_bin_size", "{}KB".format(bin_size // 1024))
ttfw_idf.check_performance("native_ota_bin_size", bin_size // 1024, dut1.TARGET)
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = Thread(target=start_https_server, args=(dut1.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut1.start_app()
dut1.expect("Loaded app from partition at offset", timeout=30)
try:
ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=60)
print("Connected to AP with IP: {}".format(ip_address))
except DUT.ExpectTimeout:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut1.expect("Starting OTA example", timeout=30)
print("writing to device: {}".format("https://" + host_ip + ":" + str(server_port) + "/" + random_bin_name))
dut1.write("https://" + host_ip + ":" + str(server_port) + "/" + random_bin_name)
dut1.expect("esp_ota_ops: OTA image has invalid magic byte", timeout=20)
os.remove(binary_file)
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_native_ota_example_chunked(env, extra_data):
"""
This is a positive test case, which downloads complete binary file multiple number of times.
Number of iterations can be specified in variable iterations.
steps: |
1. join AP
2. Fetch OTA image over HTTPS
3. Reboot with the new OTA image
"""
dut1 = env.get_dut("native_ota_example", "examples/system/ota/native_ota_example", dut_class=ttfw_idf.ESP32DUT)
# File to be downloaded. This file is generated after compilation
bin_name = "native_ota.bin"
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, bin_name)
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("native_ota_bin_size", "{}KB".format(bin_size // 1024))
ttfw_idf.check_performance("native_ota_bin_size", bin_size // 1024, dut1.TARGET)
# start test
host_ip = get_my_ip()
chunked_server = start_chunked_server(dut1.app.binary_path, 8070)
dut1.start_app()
dut1.expect("Loaded app from partition at offset", timeout=30)
try:
ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=30)
print("Connected to AP with IP: {}".format(ip_address))
except DUT.ExpectTimeout:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut1.expect("Starting OTA example", timeout=30)
print("writing to device: {}".format("https://" + host_ip + ":8070/" + bin_name))
dut1.write("https://" + host_ip + ":8070/" + bin_name)
dut1.expect("Loaded app from partition at offset", timeout=60)
dut1.expect("Starting OTA example", timeout=30)
chunked_server.kill()
os.remove(os.path.join(dut1.app.binary_path, "server_cert.pem"))
os.remove(os.path.join(dut1.app.binary_path, "server_key.pem"))
if __name__ == '__main__':
test_examples_protocol_native_ota_example()
test_examples_protocol_native_ota_example_chunked()
test_examples_protocol_native_ota_example_truncated_bin()
test_examples_protocol_native_ota_example_truncated_header()
test_examples_protocol_native_ota_example_random()