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: process_test.go
    path of file: ./repos/gotests/gotests/process
    
    the code of the file until where you have to start completion: package process

import (
	"bytes"
	"testing"
)

func TestRun(t *testing.T) {
	tests := []struct {
		name string
		args []string
		opts *Options
		want string
	}{
		// TODO: Add test cases.
		{
			name: "Nil options and nil args",
			args: nil,
			opts: nil,
			want: specifyFlagMessage + "\n",
		}, {
			name: "Nil op
    
func TestRun(t *testing.T) {
	tests := []struct {
		name string
		args []string
		opts *Options
		want string
	}{
		// TODO: Add test cases.
		{
			name: "Nil options and nil args",
			args: nil,
			opts: nil,
			want: specifyFlagMessage + "\n",
		}, {
			name: "Nil options",
			args: []string{"testdata/foobar.go"},
			opts: nil,
			want: specifyFlagMessage + "\n",
		}, {
			name: "Empty options",
			args: []string{"testdata/foobar.go"},
			opts: &Options{},
			want: specifyFlagMessage + "\n",
		}, {
			name: "Non-empty options with no args",
			args: []string{},
			opts: &Options{AllFuncs: true},
			want: specifyFileMessage + "\n",
		}, {
			name: "OnlyFuncs option w/ no matches",
			args: []string{"testdata/foobar.go"},
			opts: &Options{OnlyFuncs: "FooBar"},
			want: "No tests generated for testdata/foobar.go\n",
		}, {
			name: "Invalid OnlyFuncs option",
			args: []string{"testdata/foobar.go"},
			opts: &Options{OnlyFuncs: "??"},
			want: "Invalid -only regex: error parsing regexp: missing argument to repetition operator: `??`\n",
		}, {
			name: "Invalid ExclFuncs option",
			args: []string{"testdata/foobar.go"},
			opts: &Options{ExclFuncs: "??"},
			want: "Invalid -excl regex: error parsing regexp: missing argument to repetition operator: `??`\n",
		},
	}
	for _, tt := range tests {
		out := &bytes.Buffer{}
		Run(out, tt.args, tt.opts)
		if got := out.String(); got != tt.want {
			t.Errorf("%q. Run() =\n%v, want\n%v", tt.name, got, tt.want)
		}
	}
}