fix #1557

Former-commit-id: 55589069c8ed458183d28f32870fdf8f233629c6

hero/func_result.go

@@ -114,14 +114,23 @@ type compatibleErr interface {
 	Error() string
 }
 
-// dispatchErr writes the error to the response.
+// dispatchErr sets the error status code
+// and the error value to the context.
+// The APIBuilder's On(Any)ErrorCode is responsible to render this error code.
 func dispatchErr(ctx *context.Context, status int, err error) bool {
 	if err == nil {
 		return false
 	}
 
-	ctx.StatusCode(status)
-	DefaultErrorHandler.HandleError(ctx, err)
+	if err != ErrStopExecution {
+		if status == 0 || !context.StatusCodeNotSuccessful(status) {
+			status = DefaultErrStatusCode
+		}
+
+		ctx.StatusCode(status)
+	}
+
+	ctx.SetErr(err)
 	return true
 }
 

hero/func_result_test.go

@@ -258,3 +258,24 @@ func TestPreflightResult(t *testing.T) {
 	e.POST("/alternative").WithJSON(testInput{expected4.Name}).
 		Expect().Status(httptest.StatusAccepted).JSON().Equal(expected4)
 }
+
+func TestResponseErr(t *testing.T) {
+	app := iris.New()
+	var expectedErr = errors.New("response error")
+
+	app.OnAnyErrorCode(func(ctx iris.Context) {
+		err := ctx.GetErr()
+		if err != expectedErr {
+			t.Fatalf("expected error value does not match")
+		}
+
+		ctx.WriteString(err.Error())
+	})
+
+	app.ConfigureContainer().Get("/", func() Response {
+		return Response{Code: iris.StatusBadGateway, Err: expectedErr}
+	})
+
+	e := httptest.New(t, app)
+	e.GET("/").Expect().Status(iris.StatusBadGateway).Body().Equal("response error")
+}