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: reader_test.go
    path of file: ./repos/Xray-core/infra/conf/json
    
    the code of the file until where you have to start completion: package json_test

import (
	"bytes"
	"io"
	"testing"

	"github.com/google/go-cmp/cmp"
	"github.com/xtls/xray-core/common"
	. "github.com/xtls/xray-core/infra/conf/json"
)

func TestReader(t *testing.T) {
	data := []struct {
		input  string
		output string
	}{
		{
			`
content #comment 1
#comment 2
content 2`,
			`
content 

content 2`,
		},
		{`content`, `content`},
		{" ", " "},
		{`con/*abcd*/tent`, "content"},
		{`
text // adlkhdf /*
//comment adfkj
text 2*/`, `
text 

text 2*`},
		{`"//"content`, `"//"content`},
		{`abcd'//'abcd`, `abcd'//'abcd`},
		{`"\""`, `"\""`},
		{`\"/*abcd*/\"`, `\"\"`},
	}

	for _, testCase := range data {
		reader := &Rea
    
func TestReader1(t *testing.T) {
	type dataStruct struct {
		input  string
		output string
	}

	bufLen := 8

	data := []dataStruct{
		{"loooooooooooooooooooooooooooooooooooooooog", "loooooooooooooooooooooooooooooooooooooooog"},
		{`{"t": "\/testlooooooooooooooooooooooooooooong"}`, `{"t": "\/testlooooooooooooooooooooooooooooong"}`},
		{`{"t": "\/test"}`, `{"t": "\/test"}`},
		{`"\// fake comment"`, `"\// fake comment"`},
		{`"\/\/\/\/\/"`, `"\/\/\/\/\/"`},
	}

	for _, testCase := range data {
		reader := &Reader{
			Reader: bytes.NewReader([]byte(testCase.input)),
		}
		target := make([]byte, 0)
		buf := make([]byte, bufLen)
		var n int
		var err error
		for n, err = reader.Read(buf); err == nil; n, err = reader.Read(buf) {
			if n > len(buf) {
				t.Error("n: ", n)
			}
			target = append(target, buf[:n]...)
			buf = make([]byte, bufLen)
		}
		if err != nil && err != io.EOF {
			t.Error("error: ", err)
		}
		if string(target) != testCase.output {
			t.Error("got ", string(target), " want ", testCase.output)
		}
	}
}