env GO111MODULE=on
env GOFLAGS=-mod=mod

# go mod init should populate go.mod from Gopkg.lock
go mod init x
stderr 'copying requirements from Gopkg.lock'
go list -m all
stdout 'rsc.io/sampler v1.0.0'

# test dep replacement
cd y
go mod init
cmpenv go.mod go.mod.replace

-- x.go --
package x

-- Gopkg.lock --
[[projects]]
  name = "rsc.io/sampler"
  version = "v1.0.0"

-- y/Gopkg.lock --
[[projects]]
  name = "z"
  revision = "v1.0.0"
  source = "rsc.io/quote"

-- y/y.go --
package y // import "y"
import _ "z"

-- y/go.mod.replace --
module y

go $goversion

replace z v1.0.0 => rsc.io/quote v1.0.0

require rsc.io/quote v1.0.0