RemoteDaemon returns true if running against a remote daemon.

Setup a new environment.

SkipIfCgroupNamespacesNotSupported skips the test if the running docker daemon doesn't support cgroup namespaces.

SkipIfDaemonNotLinux skips the test unless the running docker daemon is on Linux.

SkipIfNotExperimentalDaemon returns whether the test docker daemon is in experimental mode.

SkipPluginTests returns if plugin tests should be skipped.

DefaultPollSettings used with gotestyourself/poll.