ubuntu_cts_kernel / ubuntu_kernel_selftests test will cause failure in ubuntu_lxc (X-4.4)

[Po-Hsu Lin]

If you run the ubuntu_cts_kernel test before the ubuntu_lxc test on Xenial 4.4

The python API test will failed with:
  FAIL: python3: API
  ---
  Using image from local cache
  Unpacking the rootfs

  ---
  You just created an Ubuntu xenial amd64 (20191126_07:42) container.

  To enable SSH, run: apt install openssh-server
  No default root or user password are set by LXC.
  Getting instance for '0584f564-10fc-11ea-a596-1c98ec217b34'
  Creating rootfs using 'download', arch=amd64
  Testing the configuration
  Testing the networking
  Starting the container
  Getting the interface names
  Traceback (most recent call last):
    File "/tmp/tmp.OB4XyukIeM", line 109, in <module>
      assert(set(container.get_interfaces()) == set(('lo', 'eth0')))
  AssertionError
  ---

  SUMMARY: pass=38, fail=1, ignored=0

It looks like a test case issue to me, the ubuntu_cts_kernel probably didn't do a good clean up after the test.

[Po-Hsu Lin (cypressyew)]

This issue can be found on T-4.4 as well.

[Po-Hsu Lin (cypressyew)]

It looks like the ubuntu_kernel_selftest will cause this failure on X-4.15 as well.

[Po-Hsu Lin (cypressyew)]

Still an issue, need to check which sub test is the cause.
But now I am using a workaround to test lxc first then these 2.

[Po-Hsu Lin (cypressyew)]

Since we're not testing tests altogether now, I will close this bug.