The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/factory/+/476aaad9d899114d81cf53c83038d72b27a4bb6a

commit 476aaad9d899114d81cf53c83038d72b27a4bb6a
Author: Yong Hong <yhong@chromium.org>
Date: Mon Mar 05 12:56:58 2018

pytest/probe: Verify the number of components based on `device_data`.

Different SKU in same Chromebook project might have different number
of components installed.  To allow the user specifies the expected
number of components of each category in a more flexible way, we
should integrate the verification process with the `device_data`
module.

BUG= chromium:816814 
TEST=make test; manually test on DUT

Change-Id: I09c3c1c93dc2d7278930cf5b52f55a9b994050f4
Reviewed-on: https://chromium-review.googlesource.com/938868
Commit-Ready: Yong Hong <yhong@google.com>
Tested-by: Yong Hong <yhong@google.com>
Reviewed-by: Pi-Hsun Shih <pihsun@chromium.org>

[modify] https://crrev.com/476aaad9d899114d81cf53c83038d72b27a4bb6a/py/tools/deps.conf
[modify] https://crrev.com/476aaad9d899114d81cf53c83038d72b27a4bb6a/py/test/device_data.py
[modify] https://crrev.com/476aaad9d899114d81cf53c83038d72b27a4bb6a/py/test/pytests/probe/probe.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/factory/+/1dff314cbdedbf2d87fbb8610ab4f46ad942c41a

commit 1dff314cbdedbf2d87fbb8610ab4f46ad942c41a
Author: Yong Hong <yhong@chromium.org>
Date: Thu Mar 29 14:39:20 2018

shopfloor: Update the spec of the format of device_data in README.

This CL updates `py/shopfloor/README.md` to define the format of
`component` domain of the device data returned from the Chrome OS
Factory Shopfloor Service.

BUG=b:75990339,  chromium:816814 
TEST=None

Change-Id: I9add9a12f841f57bfe288f16e61a383128d91c7b
Reviewed-on: https://chromium-review.googlesource.com/970144
Commit-Ready: Yong Hong <yhong@google.com>
Tested-by: Yong Hong <yhong@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>

[modify] https://crrev.com/1dff314cbdedbf2d87fbb8610ab4f46ad942c41a/py/shopfloor/README.md

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/factory/+/02681b19e96465099237d7e6df4ebda39f12e8b6

commit 02681b19e96465099237d7e6df4ebda39f12e8b6
Author: Cheng-Han Yang <chenghan@google.com>
Date: Fri May 04 17:54:50 2018

device_data: Check if device data meets spec.

Device data should only check data type for names starting with
`component.has_`.

BUG= chromium:816814 
TEST=make test; manually test on DUT

Change-Id: I2bb327bcc6eec52e4b1c351998da4d38ee4d92a7
Reviewed-on: https://chromium-review.googlesource.com/1043669
Commit-Ready: Cheng-Han Yang <chenghan@chromium.org>
Tested-by: Cheng-Han Yang <chenghan@chromium.org>
Reviewed-by: Yong Hong <yhong@google.com>

[modify] https://crrev.com/02681b19e96465099237d7e6df4ebda39f12e8b6/py/test/device_data.py