check_serial_number

Source code: check_serial_number.py

Checks if serial number is set correctly on a device.

Description

Some tests, for example, RF graphyte, assume DUTs have MLB serial number available (in VPD and device data). And the test will fail if a DUT doesn’t have MLB SN (e.g. it skipped previous station).

This test gets serial number from different sources and check if they are equal.

Test Procedure

This is an automated test. It requires user interaction only if the test failed, or if the “manual_check” flag is turned on. This test will,

1. try to connect to device’s state server

2. the device must have device_id

3. get SN from state server

4. get SN from VPD

5. these two SN must match

Dependency

1. SSH connection (if we are checking remote device)

2. DUT is running factory software

Examples

This test is already defined as “CheckSerialNumber” in generic_common.test_list.json and “StationCheckSerialNumber” in station_based.test_list.json. This test is turned on by default in station based test list. You can disable it by setting constants.check_serial_number to false:

{
  "constants": {
    "check_serial_number": false
  }
}

By default, this pytest checks mlb_serial_number. If you want to check serial number instead:

{
  "pytest_name": "check_serial_number",
  "args": {
    "sn_name": "serial_number"
  }
}

By default, this pytest passes if the serial numbers match. If you want additional manual confirmation (e.g. also match the serial number printed on the device):

{
  "pytest_name": "check_serial_number",
  "args": {
    "manual_check": true
  }
}

Test Arguments

Name	Type	Description
sn_name	str	(optional; default: 'mlb_serial_number') name of the serial number, e.g. “serial_number” or “mlb_serial_number”
manual_check	bool	(optional; default: False) If set to true, this test needs operator to press ENTER or ESC to pass or fail the test case.