[OE-core] [PATCH 3/3] image/testimage: Rework auto image test execution

[ChenQi]

> --- a/meta/conf/bitbake.conf
> +++ b/meta/conf/bitbake.conf
> @@ -487,7 +487,7 @@ HOSTTOOLS += " \
>   "
>   
>   # Tools needed to run testimage runtime image testing
> -HOSTTOOLS += "${@'ip ping ps scp ssh stty' if (bb.data.inherits_class('testimage', d) or d.getVar('TEST_IMAGE') == '1') else ''}"
> +HOSTTOOLS += "${@'ip ping ps scp ssh stty' if (bb.utils.contains_any('IMAGE_CLASSES', 'testimage testsdk', True, False, d)) else ''}"
>   

Hi Richard,

After this change, testimage and testsdk is limited to be used via 
IMAGE_CLASSES. Using INHERIT directly will cause commands missing when 
testing.
e.g.
INHERIT += "testimage"

Is it designed to be so?

Best Regards,
Chen Qi