package tests

import (
	"kerma/models"
	"testing"

	. "github.com/smartystreets/goconvey/convey"
)

func TestChaintip(t *testing.T) {
	Convey("Given a new chaintip", t, func() {
		blockID := models.GetGenesisBlock().GetID()
		var chaintip models.Chaintip

		Convey("When the constructor is called with a value", func() {
			chaintip.Construct(blockID)

			Convey("The value should be set", func() {
				So(chaintip.Type, ShouldEqual, "chaintip")
				So(chaintip.BlockID, ShouldEqual, blockID)
			})
		})

		Convey("When the MarshalJson is called", func() {
			chaintip.Construct(blockID)

			Convey("The canonical json and no error should be returned", func() {
				chaintipJSON, err := chaintip.MarshalJson()
				canonJSON := `{"blockid":"` + blockID + `","type":"chaintip"}`

				So(string(chaintipJSON), ShouldEqualJSON, canonJSON)
				So(err, ShouldBeNil)
			})
		})
	})
}