package server import ( "net/http" "net/http/httptest" "strings" "testing" "github.com/docker/docker/api" "github.com/docker/docker/api/server/httputils" "github.com/docker/docker/api/server/middleware" "golang.org/x/net/context" ) func TestMiddlewares(t *testing.T) { cfg := &Config{ Version: "0.1omega2", } srv := &Server{ cfg: cfg, } srv.UseMiddleware(middleware.NewVersionMiddleware("0.1omega2", api.DefaultVersion, api.MinVersion)) req, _ := http.NewRequest("GET", "/containers/json", nil) resp := httptest.NewRecorder() ctx := context.Background() localHandler := func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error { if httputils.VersionFromContext(ctx) == "" { t.Fatalf("Expected version, got empty string") } if sv := w.Header().Get("Server"); !strings.Contains(sv, "Docker/0.1omega2") { t.Fatalf("Expected server version in the header `Docker/0.1omega2`, got %s", sv) } return nil } handlerFunc := srv.handlerWithGlobalMiddlewares(localHandler) if err := handlerFunc(ctx, resp, req, map[string]string{}); err != nil { t.Fatal(err) } }