!252 设备初始化慢导致测试用例找不到设备无法执行

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背景 & 现状:
目前Hi3861使用Hiburn.exe工具对设备进行烧录烧录完成后重启设备自动执行测试用例xDevice测试框架将收集测试用例执行数据将其数据处理、结果解析生成测试报告。但由于各厂商L0板子与Hi3861烧录方式不尽相同为了兼容不同厂商也能在xDevice测试框架上执行测试框架提供了支持调用厂商升级脚本对设备实现烧写和用例执行。
前提:
1. 串口可以实现AT命令借助其它工具重启和复位
2. 刷机工具支持命令自动刷机;
以下是Hiburn和升级脚本两种烧录方式请自行选择合适的烧录方式
- Hiburn工具烧录(命令行烧写)
命令行烧录和用例执行步骤:
1. 设备复位
AT+RST=20000000 -》复位设备等待20s在复位否则复位不成功
2. send file
发送bin文件到设备在Window环境下Hiburn.exe支持以命令行的方式调用调用命令如下
```shell
Hiburn.exe params
```
命令之间用空格隔开,如果命令带有参数,命令和参数之间作用冒号隔开,示例如下:
```
Hiburn.exe -com:20 -bin:C:\test_bin\xxx.bin -signalbaud:115200
```
Hiburn.exe烧写命令参数
| 命令 | 参数 | 说明 |
| ------------ |------------------|------------------------------------------------|
| -com | x | PC端的串口号例如1 |
| -bin | path\upgrade.bin | 固件包upgrade.bin的绝对路径固件包的名称和文件类型根据各产品实际情况可能有所不同 |
| - signalbaud | 115200 | RomBoot下传输固件包时的串口波特率默认为 115200bit/s |
3. 重启设备
与串口建立连接后发送[239, 190, 173, 222, 12, 0, 135, 120, 0, 0, 97, 148]重启设备,然后开始自动执行用例,将执行数据返回给测试框架。
Command Reset对应的AT命令如下
```shell
['0xef', '0xbe', '0xad', '0xde', '0xc', '0x0', '0x87','0x78', '0x0', '0x0', '0x61', '0x94']
```
备注如果开发板支持Hiburn方式烧录不需要提供升级脚本。
- 升级脚本烧写
1. 初始化升级类
建议:文件名和类名以名字后缀区分不同厂商,如UpGradeDeviceHuawei
初始化升级类如UpGradeDeviceXXX
输入串口号、波特率、执行文件bin路径、烧录工具名称、其它参数等
如下图:
![upgrade_1](../figures/upgrade_1.png)
2. 调用方法burn实现烧写
该函数主要是对设备进行复位、擦除、烧写设备烧写成功返回True失败返回False
![upgrade_2](../figures/upgrade_2.png)
1) 函数_reset()
发送命令让设备复位
![upgrade_3](../figures/upgrade_3.png)
2) 函数_upgrade_device()
对设备进行烧录
![upgrade_4](../figures/upgrade_4.png)
3. 调用方法reset_device重启设备
该函数主要是重启设备,然后自动执行用例,返回用例执行数据给测试框架。
![reset_device](../figures/reset_device.png)
1 ) 返回重启设备的AT命令由xDevice框架做重启设备的操作
![upgrade_6](../figures/upgrade_6.png)
2) 在不知道AT命令情况下借助三方工具重启设备将执行用例的数据返回给xDevice做处理
![upgrade_5](../figures/upgrade_5.png)
升级脚本Demo
```
import time
import serial
import re
import subprocess
PATTERN = re.compile(r'\x1B(\[([0-9]{1,2}(;[0-9]{1,2})*)?m)*')
# 测试套结束标签
CTEST_END_SIGN = "All the test suites finished"
class UpGradeDeviceXXX:
"""
升级类,类名使用大写字母开头的单词(CapWords)风格命令其中XXX表示芯片型号或者厂商如UpGradeDeviceHi3861
"""
def __init__(self, serial_port, baund_rate, patch_file, burn_tools, **kwargs):
self.serial_port = serial_port
self.baund_rate = baund_rate
self.patch_file = patch_file
self.burn_tools = burn_tools
self.object_com = None
self.is_open = None
self.arg = kwargs
def _connect(self):
'''
连接串口
@return:
'''
try:
if not self.is_open:
self.object_com = serial.Serial(self.serial_port, baudrate=self.baund_rate, timeout=1)
self.is_open = True
except Exception as error_msg:
error = "connect {} serial failed,please make sure this port is not occupied,error is {}".format(
self.serial_port, str(error_msg))
raise (error)
def _close(self):
'''
关闭串口
@return:
'''
try:
if not self.object_com:
return
if self.is_open:
self.object_com.close()
self.is_open = False
except (ConnectionError, Exception) as _:
error_message = "Local device is disconnected abnormally"
raise (error_message)
def _execute_command_with_time(self, com, command, timeout):
'''
执行命令行函数
@param com:
@param command:
@param timeout:
@return:
'''
if isinstance(command, str):
command = command.encode("gbk")
if command[-2:] != b"\r\n":
command = command.rstrip() + b'\r\n'
com.write(command)
else:
com.write(command)
return self._read_local_output(com=com, command=command,
timeout=timeout)
def _read_local_output(self, com=None, command=None, timeout=None):
'''
通过串口方式读取设备数据
@param com:串口
@param command:执行命令
@param timeout:函数超时时间
@return:
'''
result = None
input_command = command
start = time.time()
while True:
data = com.readline().decode('gbk', errors="ignore")
data = PATTERN.sub("", data)
if isinstance(input_command, list):
if len(data.strip()) > 0:
# 测试日志添加时间戳
data = "{} {}".format(self._get_current_time(), data)
result = "{}{}".format(result, data.replace("\r", ""))
if re.search(r"\d+\s+Tests\s+\d+\s+Failures\s+\d+\s+Ignored", data):
start = time.time()
if CTEST_END_SIGN in data:
break
if (int(time.time() - int(start))) > timeout:
return result
else:
result = "{}{}".format(result, data.replace("\r", "").replace("\n", "").strip())
if (int(time.time() - int(start))) > timeout:
return result
print("result:{}".format(result))
return result
def _reset(self):
'''
发送AT命令让设备复位
根据实际AT命令或者工具实现如"AT+RST=20000000"是Hi3861芯片的复位命令该函数开发根据自己业务修改
@return:
'''
self._connect()
self._execute_command_with_time(com=self.object_com, command="AT+RST=20000000", timeout=2)
self._close()
def _upgrade_device(self):
'''
烧录设备,根据各自实际情况调用升级工具对设备进行烧录
@return: 成功返回Ture,失败返回False
'''
try:
port_number = re.findall(r'\d+$', self.serial_port)
upgrade_command = "{} -com:{} -bin:{} -signalbaud:{}".format(self.burn_tools, port_number[0],
self.patch_file, self.baund_rate)
return_code, upgrade_result = subprocess.getstatusoutput(upgrade_command)
if return_code == 0:
print("Upgrade device success !")
return False
else:
print("Upgrade device fail !")
return False
except Exception as error:
print("Upgrade device error:{}".format(error))
return False
def restart_device(self):
'''
重启设备可以通过AT命令或者三方工具重启设备
@return: 用例执行数据
'''
# 方法1直接返回AT命令给测试框架由测试框架重启设备以下是3861的Reset AT命令
# RESET_CMD = "0xEF,0xBE,0xAD,0xED,0x0C,0x00,0x87,0x00,0x00,0x61,0x94"
# reset_cmd = []
# reset_cmd = RESET_CMD.replace(" ", "").split(",")
# reset_cmd = [int(item, 16) for item in reset_cmd]
# return reset_cmd
# 方法2:在不知道AT命令情况下可以通过三方工具重启命令返回用例执行数据,如通过JFlash工具重启设备
result = None
restart_command = "{} -startapp -hide -exit".format(self.burn_tools)
print("Restart command:{}".format(restart_command))
print("Reseting device,please wait....")
return_code, out = subprocess.getstatusoutput(restart_command)
if 0 == return_code:
print("Restart device success!!")
# 重启设备后,连接串口,获取用例执行数据
self._connect()
result = self._execute_command_with_time(com=self.object_com, command=[], timeout=90)
self._close()
else:
print("Restart device fail!!")
return result
def burn(self):
"""
烧录接口
主要实现设备烧录,有些开发板还需要执行前先执行擦除操作,根据实际业务实现
:return:
"""
# 1.设备复位
# 连接串口发送AT命令复位各厂商复位命令不同
self._reset()
# 2.烧写设备
return self._upgrade_device()
def _get_current_time(self):
"""
获取当前时间戳
:return:
"""
current_time = time.time()
local_time = time.localtime(current_time)
data_head = time.strftime("%Y-%m-%d %H:%M:%S", local_time)
millisecond = (current_time - int(current_time)) * 1000
return "%s.%03d" % (data_head, millisecond)
if __name__ == '__main__':
# 1.初始化升级类
serial_port = "com8"
baund_rate = 115200
patch_file = r"C:\test_bin\xxx.bin"
burn_tools = r"D:\DeviceTests\Hiburn.exe"
upgrade = UpGradeDeviceXXX(serial_port=serial_port,
baund_rate=baund_rate,
patch_file=patch_file,
burn_tools=burn_tools)
# 2.烧写设备
result = upgrade.burn()
# 3.重启设备
result_data = upgrade.restart_device()
print("result_data:{}".format(result_data))
```

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@ -129,7 +129,7 @@ class ManagerDevice(IDeviceManager, IFilter):
if device:
return device
LOG.debug("Wait for available device founded")
self.wait_times += 1
self.wait_times += 3
if self.wait_times > timeout:
self.lock_con.wait(timeout)
else: