func (p FBInjectInstanceInitializer) Initialize(instance interface{}, typeName string) (interface{}, error) {
var g inject.Graph
if err := g.Provide(&inject.Object{Value: instance}); err != nil {
return nil, err
}
if entry := p.initializers[typeName]; entry != nil {
for _, v := range entry.dependencies {
resolved, e1 := godi.Resolve(v)
if e1 != nil {
return nil, e1
}
obj := inject.Object{Value: resolved}
e2 := g.Provide(&obj)
if e2 != nil {
return nil, e2
}
}
}
// construct the instance.
//
if e3 := g.Populate(); e3 != nil {
return nil, e3
}
return instance, nil
}
func TestFbInject(t *testing.T) {
// setup the initializer
var inject = NewFBInjectInstanceInitializer()
deps := []interface{}{(*D2)(nil)}
inject.AddInitializer(T1{}, deps)
godi.RegisterInstanceInitializer(inject)
// register the dependency
godi.RegisterTypeImplementor((*I1)(nil), T1{}, false, nil)
godi.RegisterTypeImplementor((*D2)(nil), TD2{}, false, nil)
instance, err := godi.Resolve((*I1)(nil))
if err != nil {
t.Error(err.Error())
}
i1 := instance.(I1)
if i1.CheckCheck() != "hodor" {
t.Error("Expected hodor")
}
}