src/cmd/go/testdata/script/mod_off_init.txt - go - Git at Google

 # 'go mod init' should refuse to initialize a module if it will be
 # ignored anyway due to GO111MODULE=off.
 env GO111MODULE=off
 ! go mod init
 stderr 'go mod init: modules disabled by GO111MODULE=off; see ''go help modules'''
	# 'go mod init' should refuse to initialize a module if it will be
	# ignored anyway due to GO111MODULE=off.
	env GO111MODULE=off
	! go mod init
	stderr 'go mod init: modules disabled by GO111MODULE=off; see ''go help modules'''