# Verify that goproxytest.Setup chains with an existing Setup function.
# The custom setup sets CUSTOM=hello, and then Setup should also set GOPROXY.
go env GOPROXY
stdout ^http://.*/mod$

go run main.go
stdout ^hello$

-- go.mod --
module mod

-- main.go --
package main

import (
	"fmt"
	"os"
)

func main() {
	fmt.Println(os.Getenv("CUSTOM"))
}

-- .gomodproxy/fruit.com_v1.0.0/go.mod --
module fruit.com

-- .gomodproxy/fruit.com_v1.0.0/fruit/fruit.go --
package fruit

const Name = "Apple"