Make hardware_Components test work on legacy BIOS

Make hardware_Components test work on legacy BIOS

Skip execptions in hardware component detection and convert to property valuse.

BUG=chromium-os:6115
TEST=manual

Change-Id: I21e631b9a372a91875d78e7113e4576bf2216943

[Tom Wai-Hong Tam, 2010-08-26 18:32:04]

http://codereview.chromium.org/3108050/diff/1/2
File client/site_tests/hardware_Components/hardware_Components.py (right):

http://codereview.chromium.org/3108050/diff/1/2#newcode286
client/site_tests/hardware_Components/hardware_Components.py:286: def
force_get_property(self, propname):
Please use a meaningful name for propname, like property_name or just property.

http://codereview.chromium.org/3108050/diff/1/2#newcode292
client/site_tests/hardware_Components/hardware_Components.py:292: return
'<ERROR: %s>' % str(e).replace("\n", ' ')
I think returning an empty string is enough. Empty means the hardware component
not found. What reason causes it not found is not important. The error message
can be recorded using logging. Can check it later by looking the detail log if
needed.

[Hung-Te, 2010-08-27 02:08:46]

http://codereview.chromium.org/3108050/diff/1/2
File client/site_tests/hardware_Components/hardware_Components.py (right):

http://codereview.chromium.org/3108050/diff/1/2#newcode286
client/site_tests/hardware_Components/hardware_Components.py:286: def
force_get_property(self, propname):
On 2010/08/26 18:32:04, Tom Wai-Hong Tam wrote:
> Please use a meaningful name for propname, like property_name or just
property.

Done.

http://codereview.chromium.org/3108050/diff/1/2#newcode292
client/site_tests/hardware_Components/hardware_Components.py:292: return
'<ERROR: %s>' % str(e).replace("\n", ' ')
On 2010/08/26 18:32:04, Tom Wai-Hong Tam wrote:
> I think returning an empty string is enough. Empty means the hardware
component
> not found. What reason causes it not found is not important. The error message
> can be recorded using logging. Can check it later by looking the detail log if
> needed.

Done.

[Tom Wai-Hong Tam, 2010-08-27 02:12:34]

LGTM