env GO111MODULE=on

# Regression test for golang.org/issue/27063:
# 'go mod tidy' and 'go mod vendor' should not hide loading errors.

! go mod tidy
! stderr 'package nonexist is not in GOROOT'
stderr '^issue27063 imports\n\tnonexist.example.com: cannot find module providing package nonexist.example.com'
stderr '^issue27063 imports\n\tissue27063/other imports\n\tother.example.com/nonexist: cannot find module providing package other.example.com/nonexist'

! go mod vendor
! stderr 'package nonexist is not in GOROOT'
stderr '^issue27063 imports\n\tnonexist.example.com: no required module provides package nonexist.example.com; to add it:\n\tgo get nonexist.example.com$'
stderr '^issue27063 imports\n\tissue27063/other imports\n\tother.example.com/nonexist: no required module provides package other.example.com/nonexist; to add it:\n\tgo get other.example.com/nonexist$'

-- go.mod --
module issue27063

go 1.13

require issue27063/other v0.0.0
replace issue27063/other => ./other
-- x.go --
package main

import (
	"nonexist"

	"nonexist.example.com"
	"issue27063/other"
)

func main() {}
-- other/go.mod --
module issue27063/other
-- other/other.go --
package other

import "other.example.com/nonexist"