test: cleanup a bit buildpack test

refs #2596

Signed-off-by: Carlos A Becker <caarlos0@gmail.com>

internal/pipe/docker/docker.go

@@ -167,7 +167,6 @@ func process(ctx *context.Context, docker config.Docker, artifacts []*artifact.A
 	}
 
 	log.Info("building docker image")
-
 	if err := imagers[docker.Use].Build(ctx, tmp, images, buildFlags); err != nil {
 		return err
 	}

internal/pipe/docker/docker_test.go

@@ -66,6 +66,7 @@ func killAndRm(t *testing.T) {
 
 // TODO: this test is too big... split in smaller tests? Mainly the manifest ones...
 func TestRunPipe(t *testing.T) {
+	testlib.CheckPath(t, "docker")
 	type errChecker func(*testing.T, error)
 	shouldErr := func(msg string) errChecker {
 		return func(t *testing.T, err error) {
@@ -1047,6 +1048,7 @@ func TestRunPipe(t *testing.T) {
 }
 
 func TestRunPipeWhileUsingBuildpacks(t *testing.T) {
+	testlib.CheckPath(t, "pack")
 	type errChecker func(*testing.T, error)
 	shouldNotErr := func(t *testing.T, err error) {
 		t.Helper()
@@ -1056,7 +1058,6 @@ func TestRunPipeWhileUsingBuildpacks(t *testing.T) {
 	table := map[string]struct {
 		dockers             []config.Docker
 		manifests           []config.DockerManifest
-		env                 map[string]string
 		expect              []string
 		assertError         errChecker
 		pubAssertError      errChecker
@@ -1100,7 +1101,6 @@ func TestRunPipeWhileUsingBuildpacks(t *testing.T) {
 			})
 
 			ctx.Parallelism = 1
-			// ctx.Env = docker.env
 			ctx.Version = "1.0.0"
 			ctx.Git = context.GitInfo{
 				CurrentTag: "v1.0.0",