package dockerfile import ( "strings" "testing" "github.com/docker/docker/builder" "github.com/docker/docker/pkg/archive" "github.com/docker/engine-api/types" ) func TestEmptyDockerfile(t *testing.T) { contextDir, cleanup := createTestTempDir(t, "", "builder-dockerfile-test") defer cleanup() createTestTempFile(t, contextDir, builder.DefaultDockerfileName, "", 0777) tarStream, err := archive.Tar(contextDir, archive.Uncompressed) if err != nil { t.Fatalf("Error when creating tar stream: %s", err) } defer func() { if err = tarStream.Close(); err != nil { t.Fatalf("Error when closing tar stream: %s", err) } }() context, err := builder.MakeTarSumContext(tarStream) if err != nil { t.Fatalf("Error when creating tar context: %s", err) } defer func() { if err = context.Close(); err != nil { t.Fatalf("Error when closing tar context: %s", err) } }() options := &types.ImageBuildOptions{} b := &Builder{options: options, context: context} err = b.readDockerfile() if err == nil { t.Fatalf("No error when executing test for empty Dockerfile") } if !strings.Contains(err.Error(), "The Dockerfile (Dockerfile) cannot be empty") { t.Fatalf("Wrong error message. Should be \"%s\". Got \"%s\"", "The Dockerfile (Dockerfile) cannot be empty", err.Error()) } }