/
gadget_test_server.go
153 lines (124 loc) · 2.62 KB
/
gadget_test_server.go
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package testsrv
import (
"errors"
"net/http/httptest"
"github.com/graph-gophers/graphql-go"
"github.com/graph-gophers/graphql-go/relay"
)
type gizmoWithGadgetResolver struct {
IDField string
Gadget *gadgetResolver
}
func (u gizmoWithGadgetResolver) ID() graphql.ID {
return graphql.ID(u.IDField)
}
type gadgetServiceResolver struct {
serviceField service
}
func (g *gadgetServiceResolver) Service() service {
return g.serviceField
}
func (g *gadgetServiceResolver) BoundaryGizmo(args struct{ ID string }) (*gizmoWithGadgetResolver, error) {
gadget, ok := gadgetMap[args.ID]
if !ok {
return nil, errors.New("gadget not found")
}
return &gizmoWithGadgetResolver{
IDField: args.ID,
Gadget: &gadgetResolver{gadget},
}, nil
}
type gadget interface {
ID() graphql.ID
Name() string
}
type gadgetResolver struct {
gadget
}
var gadgetMap = map[string]gadget{
"GIZMO1": &jetpack{
IDField: "JETPACK1",
NameField: "Jetpack #1",
RangeField: "500km",
},
"GIZMO2": &invisibleCar{
IDField: "AM1",
NameField: "Vanquish",
CloakedField: true,
},
}
type jetpack struct {
IDField string
NameField string
RangeField string
}
func (r *gadgetResolver) ToJetpack() (*jetpack, bool) {
jetpack, ok := r.gadget.(*jetpack)
return jetpack, ok
}
func (j jetpack) ID() graphql.ID {
return graphql.ID(j.IDField)
}
func (j jetpack) Name() string {
return j.NameField
}
func (j jetpack) Range() string {
return j.RangeField
}
type invisibleCar struct {
IDField string
NameField string
CloakedField bool
}
func (r *gadgetResolver) ToInvisibleCar() (*invisibleCar, bool) {
invisableCar, ok := r.gadget.(*invisibleCar)
return invisableCar, ok
}
func (j invisibleCar) ID() graphql.ID {
return graphql.ID(j.IDField)
}
func (j invisibleCar) Name() string {
return j.NameField
}
func (j invisibleCar) Cloaked() bool {
return j.CloakedField
}
func NewGadgetService() *httptest.Server {
s := `
directive @boundary on OBJECT | FIELD_DEFINITION
type Query {
service: Service!
boundaryGizmo(id: ID!): Gizmo @boundary
}
type Gizmo @boundary {
id: ID!
gadget: Gadget
}
interface Gadget {
id: ID!
name: String!
}
type Jetpack implements Gadget {
id: ID!
name: String!
range: String!
}
type InvisibleCar implements Gadget {
id: ID!
name: String!
cloaked: Boolean!
}
type Service {
name: String!
version: String!
schema: String!
}`
schema := graphql.MustParseSchema(s, &gadgetServiceResolver{
serviceField: service{
Name: "gadget-service",
Version: "v0.0.1",
Schema: s,
},
}, graphql.UseFieldResolvers())
return httptest.NewServer(&relay.Handler{Schema: schema})
}