builder: Add TODOBuildkit test requirement, specifically for TestBuildCancellationKillsSleep

Signed-off-by: Tibor Vass <tibor@docker.com>

integration-cli/docker_cli_build_unix_test.go

@@ -126,8 +126,12 @@ func (s *DockerSuite) TestBuildAddChangeOwnership(c *check.C) {
 // * Run a 1-year-long sleep from a docker build.
 // * When docker events sees container start, close the "docker build" command
 // * Wait for docker events to emit a dying event.
+//
+// TODO(buildkit): this test needs to be rewritten for buildkit.
+// It has been manually tested positive. Confirmed issue: docker build output parsing.
+// Potential issue: newEventObserver uses docker events, which is not hooked up to buildkit.
 func (s *DockerSuite) TestBuildCancellationKillsSleep(c *check.C) {
-	testRequires(c, DaemonIsLinux)
+	testRequires(c, DaemonIsLinux, TODOBuildkit)
 	name := "testbuildcancellation"
 
 	observer, err := newEventObserver(c)

integration-cli/requirements_test.go

@@ -208,6 +208,10 @@ func SwarmInactive() bool {
 	return testEnv.DaemonInfo.Swarm.LocalNodeState == swarm.LocalNodeStateInactive
 }
 
+func TODOBuildkit() bool {
+	return os.Getenv("DOCKER_BUILDKIT") == ""
+}
+
 // testRequires checks if the environment satisfies the requirements
 // for the test to run or skips the tests.
 func testRequires(c requirement.SkipT, requirements ...requirement.Test) {