cp m.go m.go.orig
cp m.go.new m.go
go mod tidy
cmp go.mod.new go.mod

go list -m all
stdout '^a v0.1.0 '
stdout '^b v0.1.0 '
stdout '^c v0.1.0 '

# With lazy loading, the go.mod requirements are the same,
# but the dependency on c is initially pruned out.

cp m.go.orig m.go
cp go.mod.orig go.mod
go mod edit -go=1.17
go mod edit -go=1.17 go.mod.new

cp go.mod go.mod.orig
go mod tidy
cmp go.mod.orig go.mod

golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=

stderr '^go: go\.mod file not found in current directory or any parent directory; see ''go help modules''$'
! go run ../pkg/mod/rsc.io/fortune@v1.0.0
stderr '^go: go\.mod file not found in current directory or any parent directory; see ''go help modules''$'
mkdir tmp
cd tmp
go mod init tmp
go mod edit -require=rsc.io/fortune@v1.0.0
! go run -mod=readonly $GOPATH/pkg/mod/rsc.io/fortune@v1.0.0

# 'go mod why' should fail, since there is no main module to depend on anything.
! go mod why -m example.com/version
stderr '^go: go.mod file not found in current directory or any parent directory; see ''go help modules''$'

# 'go mod edit', 'go mod tidy', and 'go mod fmt' should fail:
# there is no go.mod file to edit.
! go mod tidy
stderr '^go: go.mod file not found in current directory or any parent directory; see ''go help modules''$'
! go mod edit -fmt

[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
[!GOOS:windows] [!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
! exists $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go


# Repeat part of the test with 'go mod download' instead of 'go get' to verify
# -modcacherw is supported on 'go mod' subcommands.
go clean -modcache
go mod download -modcacherw rsc.io/quote

cmp go.mod go.mod.edit

go mod verify
stdout '^all modules verified$'
cmp go.mod go.mod.edit

go mod why rsc.io/sampler
cmp stdout why.want
cmp go.mod go.mod.edit

go mod why -m rsc.io/sampler
cmp stdout why.want
cmp go.mod go.mod.edit

cp go.mod.orig go.mod

# Removing go.sum breaks other commands, but 'go mod graph' and
# 'go mod why' still work.
rm go.sum
! go list -m all
stderr 'missing go.sum entry'

# of that package.
cp go.mod.orig go.mod
cd uselang
go get -u .
cd ..
grep 'rsc.io/quote.*v1.3.0' go.mod
grep 'golang.org/x/text.*v0.3.0' go.mod
cp go.mod go.mod.dotpkg

# 'go get -u' with an explicit package in the main module updates the
# dependencies of that package.
cp go.mod.orig go.mod
go get -u local/uselang
cmp go.mod go.mod.dotpkg

-- go.mod --
module local

require (

# go list -mod=vendor (or go build -mod=vendor) must not modify go.mod.
# golang.org/issue/26704
go list -mod=vendor
cmp go.mod go.mod.good

# With a clean (and empty) module cache, 'go list -mod=vendor' should not download modules.
go clean -modcache
env GOPROXY=off
! go list ...
go list -mod=vendor ...

# However, it should still list packages in the main module.
go list -mod=vendor m/...
stdout m

-- go.mod --
module m

# 'go list -mod=vendor -retracted' reports an error.
go mod vendor
! go list -m -retracted -mod=vendor
stderr '^go list -retracted cannot be used when vendoring is enabled$'
rm vendor

# 'go list -retracted' reports an error in GOPATH mode.
env GO111MODULE=off
! go list -retracted
stderr '^go list -retracted can only be used in module-aware mode$'
env GO111MODULE=

# 'go list pkg' does not show retraction.

cp go.mod.orig go.mod
go get all@patch
go list -m all
stdout '^patch.example.com/direct v1.0.1'
stdout '^patch.example.com/indirect v1.0.1'
stdout '^patch.example.com/depofdirectpatch v1.0.0'

# ...but 'all@patch' should fail if any of the affected modules do not already
# have a selected version.
cp go.mod.orig go.mod
go mod edit -droprequire=patch.example.com/direct