Fix unittest that fails when the lab is down.
Fix unittest that fails when the lab is down.

BUG=none
TEST=Run the test. It passes now.

Change-Id: I046cd7727266e1d4fd7eb5a63ceb9139255cfa6f
Reviewed-on: https://gerrit.chromium.org/gerrit/47487
Reviewed-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite