You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: multi_hasher_test.go
    path of file: ./repos/gitea/modules/packages
    
    the code of the file until where you have to start completion: // Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package packages

import (
	"encoding/hex"
	"testing"

	"github.com/stretchr/testify/assert"
)

const (
	expectedMD5    = "e3bef03c5f3b7f6b3ab3e3053ed71e9c"
	expectedSHA1   = "060b3b99f88e96085b4a68e095bc9e3d1d91e1bc"
	expectedSHA256 = "6ccce4863b70f258d691f59609d31b4502e1ba5199942d3bc5d35d17a4ce771d"
	expectedSHA512 = "7f70e439ba8c52025c1f06cdf6ae443c4b8ed2e90059cdb9bbbf8adf80846f185a24acca9245b128b226d61753b0d7ed46580a69c8999eeff3bc13
    
func TestMultiHasherSums(t *testing.T) {
	t.Run("Sums", func(t *testing.T) {
		h := NewMultiHasher()
		h.Write([]byte("gitea"))

		hashMD5, hashSHA1, hashSHA256, hashSHA512 := h.Sums()

		assert.Equal(t, expectedMD5, hex.EncodeToString(hashMD5))
		assert.Equal(t, expectedSHA1, hex.EncodeToString(hashSHA1))
		assert.Equal(t, expectedSHA256, hex.EncodeToString(hashSHA256))
		assert.Equal(t, expectedSHA512, hex.EncodeToString(hashSHA512))
	})

	t.Run("State", func(t *testing.T) {
		h := NewMultiHasher()
		h.Write([]byte("git"))

		state, err := h.MarshalBinary()
		assert.NoError(t, err)

		h2 := NewMultiHasher()
		err = h2.UnmarshalBinary(state)
		assert.NoError(t, err)

		h2.Write([]byte("ea"))

		hashMD5, hashSHA1, hashSHA256, hashSHA512 := h2.Sums()

		assert.Equal(t, expectedMD5, hex.EncodeToString(hashMD5))
		assert.Equal(t, expectedSHA1, hex.EncodeToString(hashSHA1))
		assert.Equal(t, expectedSHA256, hex.EncodeToString(hashSHA256))
		assert.Equal(t, expectedSHA512, hex.EncodeToString(hashSHA512))
	})
}