bazel test command does not actually run tests

[Ark-kun]

/go/src/github.com/kubeflow/pipelines$ bazel test -c opt --action_env=PATH --define=grpc_no_ares=true backend/src/apiserver:apiserver
DEBUG: /usr/local/google/home/avolkov/.cache/bazel/_bazel_avolkov/31e08d5c4be525ad16464e998010eee7/external/bazel_skylib/lib.bzl:30:1: WARNING: lib.bzl is deprecated and will go away in the future, please directly load the bzl file(s) of the module(s) n
eeded as it is more efficient.
INFO: Analysed target //backend/src/apiserver:apiserver (0 packages loaded, 0 targets configured).
INFO: Found 1 target and 0 test targets...
Target //backend/src/apiserver:apiserver up-to-date:
  bazel-bin/backend/src/apiserver/linux_amd64_stripped/apiserver
INFO: Elapsed time: 0.248s, Critical Path: 0.00s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action
INFO: Build completed successfully, 1 total action

/assign @neuromage

[neuromage]

Will be fixed by #958