cp go.work go.work.orig

# If the current directory contains a go.mod file,
# 'go work use .' should add an entry for it.
cd bar/baz
go work use .
cmp ../../go.work ../../go.work.rel

# If the current directory lacks a go.mod file, 'go work use .'
# should remove its entry.
mv go.mod go.mod.bak
go work use .
cmp ../../go.work ../../go.work.orig

# If the path is absolute, it should remain absolute.
mv go.mod.bak go.mod
go work use $PWD
grep -count=1 '^use ' ../../go.work
grep '^use ["]?'$PWD'["]?$' ../../go.work

# An absolute path should replace an entry for the corresponding relative path
# and vice-versa.
go work use .
cmp ../../go.work ../../go.work.rel
go work use $PWD
grep -count=1 '^use ' ../../go.work
grep '^use ["]?'$PWD'["]?$' ../../go.work

# If both the absolute and relative paths are named, 'go work use' should error
# out: we don't know which one to use, and shouldn't add both because the
# resulting workspace would contain a duplicate module.
cp ../../go.work.orig ../../go.work
! go work use $PWD .
stderr '^go: already added "\./bar/baz" as "'$PWD'"$'
cmp ../../go.work ../../go.work.orig


-- go.mod --
module example
go 1.18
-- go.work --
go 1.18
-- go.work.rel --
go 1.18

use ./bar/baz
-- bar/baz/go.mod --
module example/bar/baz
go 1.18