package hasher_test

import (
	"github.com/navidrome/navidrome/utils/hasher"
	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
)

var _ = Describe("HashFunc", func() {
	const input = "123e4567e89b12d3a456426614174000"

	It("hashes the input and returns the sum", func() {
		hashFunc := hasher.HashFunc()
		sum := hashFunc("1", input)
		Expect(sum > 0).To(BeTrue())
	})

	It("hashes the input, reseeds and returns a different sum", func() {
		hashFunc := hasher.HashFunc()
		sum := hashFunc("1", input)
		hasher.Reseed("1")
		sum2 := hashFunc("1", input)
		Expect(sum).NotTo(Equal(sum2))
	})

	It("keeps different hashes for different ids", func() {
		hashFunc := hasher.HashFunc()
		sum := hashFunc("1", input)
		sum2 := hashFunc("2", input)

		Expect(sum).NotTo(Equal(sum2))

		Expect(sum).To(Equal(hashFunc("1", input)))
		Expect(sum2).To(Equal(hashFunc("2", input)))
	})
})