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: emoji_test.go
    path of file: ./repos/hugo/helpers
    
    the code of the file until where you have to start completion: // Copyright 2016 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or impl
    
func TestEmojiCustom(t *testing.T) {
	for i, this := range []struct {
		input  string
		expect []byte
	}{
		{"A :smile: a day", []byte("A ğŸ˜„ a day")},
		{"A few :smile:s a day", []byte("A few ğŸ˜„s a day")},
		{"A :smile: and a :beer: makes the day for sure.", []byte("A ğŸ˜„ and a ğŸº makes the day for sure.")},
		{"A :smile: and: a :beer:", []byte("A ğŸ˜„ and: a ğŸº")},
		{"A :diamond_shape_with_a_dot_inside: and then some.", []byte("A ğŸ’  and then some.")},
		{":smile:", []byte("ğŸ˜„")},
		{":smi", []byte(":smi")},
		{"A :smile:", []byte("A ğŸ˜„")},
		{":beer:!", []byte("ğŸº!")},
		{"::smile:", []byte(":ğŸ˜„")},
		{":beer::", []byte("ğŸº:")},
		{" :beer: :", []byte(" ğŸº :")},
		{":beer: and :smile: and another :beer:!", []byte("ğŸº and ğŸ˜„ and another ğŸº!")},
		{" :beer: : ", []byte(" ğŸº : ")},
		{"No smiles for you!", []byte("No smiles for you!")},
		{" The motto: no smiles! ", []byte(" The motto: no smiles! ")},
		{":hugo_is_the_best_static_gen:", []byte(":hugo_is_the_best_static_gen:")},
		{"ì€í–‰ :smile: ì€í–‰", []byte("ì€í–‰ ğŸ˜„ ì€í–‰")},
		// #2198
		{"See: A :beer:!", []byte("See: A ğŸº!")},
		{`Aaaaaaaaaa: aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa.

:beer:`, []byte(`Aaaaaaaaaa: aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa.

ğŸº`)},
		{"test :\n```bash\nthis is a test\n```\n\ntest\n\n:cool::blush:::pizza:\\:blush : : blush: :pizza:", []byte("test :\n```bash\nthis is a test\n```\n\ntest\n\nğŸ†’ğŸ˜Š:ğŸ•\\:blush : : blush: ğŸ•")},
		{
			// 2391
			"[a](http://gohugo.io) :smile: [r](http://gohugo.io/introduction/overview/) :beer:",
			[]byte(`[a](http://gohugo.io) ğŸ˜„ [r](http://gohugo.io/introduction/overview/) ğŸº`),
		},
	} {

		result := Emojify([]byte(this.input))

		if !reflect.DeepEqual(result, this.expect) {
			t.Errorf("[%d] got %q but expected %q", i, result, this.expect)
		}

	}
}