Several improvements can be done on the integration test side of docker/docker. This issue is there to list them and track the work on it.

• Remove utils_test.go, latest runCommandWithOutput appearance
• Remove docker_utils_test.go
  • Move cleanup function to environment package [WIP] [test-integration] Move TearDownTest cleaning to environment package #30759 @vdemeester
  • Extract fakeContext, buildImage, inspect, dockerCmd, … methods in packages @vdemeester
• Use API for environment instead of cli
• Make all test suite manage their own deamon. This should allow to use always the same method (instead of currently either dockerCmd or s.d.Cmd) and this would fix start integration-cli daemon in go rather than bash #17129
  Using cli.Docker(...) instead of dockerCmd and cli.Docker(..., cli.Daemon(s.d)) instead of s.d.Cmd.
• Replace request deprecated function (SockRequest, SockRequestRaw) usage to the new ones (Get, Post, Put, Do, …). @vdemeester — most of those could also use the client's package
• Freeze test-integration-cli and create test-integration that only does api tests. cli test are docker related tests and should be on another repository (owned by docker). @vdemeester Introduce test-integration target (and deprecate/freeze test-integration-cli) #33344
• Extract suites in their own packages
  • start with the API suite that is different enough from the other
  • Create an ExperimentalTestSuite and remove the current experimental build (experimental is not a different binary anymore, we just need a suite where the deamon is with --experimental). @vdemeester
  • Update this to insert other potential suites
• Maintain integration test suite (probably should be an external issue in the future)
  • Make test-integration more self-contained (limit the number of external service dependency like the hub)
  • [x] docker/docker-e2e integration @vdemeester
• List and remove integration tests that could be unit test. One example is some cli-only tests. These should be removed once [tests] cli unit tests #31217 is taken care of. I'll also list the one I think could be replaced by unit-test in another issue.

/cc @icecrime @thaJeztah @docker/core-engine-maintainers