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dingo_child_test.go
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dingo_child_test.go
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package dingo
import (
"testing"
"github.com/stretchr/testify/assert"
)
type (
childIface interface{}
childParentIface interface {
child() childIface
}
childIfaceProvider func() childIface
childParentIfaceImpl struct {
childInstance childIfaceProvider
}
childIfaceImpl struct{}
)
func (i *childParentIfaceImpl) Inject(childInstance childIfaceProvider) {
i.childInstance = childInstance
}
func (i *childParentIfaceImpl) child() childIface {
return i.childInstance()
}
func TestChild(t *testing.T) {
injector, err := NewInjector()
assert.NoError(t, err)
injector.Bind(new(childParentIface)).To(new(childParentIfaceImpl))
child, err := injector.Child()
assert.NoError(t, err)
child.Bind(new(childIface)).To(new(childIfaceImpl))
_, err = injector.GetInstance(new(childParentIface))
assert.NoError(t, err)
// we can get an instance in child, because we have a binding here
i, err := child.GetInstance(new(childParentIface))
assert.NoError(t, err)
assert.NotNil(t, i.(childParentIface).child())
}