! exists $GOPATH/pkg/mod/cache/download/example.com/retract/@v/v1.1.0.mod

# Importing a package from a module with a retracted latest version will
# select the latest non-retracted version.
go get ./use_self_prev
go list -m example.com/retract/self/prev
stdout '^example.com/retract/self/prev v1.1.0$'
exists $GOPATH/pkg/mod/cache/download/example.com/retract/self/prev/@v/v1.9.0.mod

-- go.mod --
module example.com/use

# as the base.
# Verifies golang.org/issue/41700.

[short] skip
[!git] skip
env GOPROXY=direct
env GOSUMDB=off
go mod init m

# Control: check that v1.0.0 is the only version and is retracted.
go list -m -versions vcs-test.golang.org/git/retract-pseudo.git
stdout '^vcs-test.golang.org/git/retract-pseudo.git$'
go list -m -versions -retracted vcs-test.golang.org/git/retract-pseudo.git

! go get example.com/retract/ambiguous/other
stderr 'ambiguous import: found package example.com/retract/ambiguous/nested in multiple modules:'
stderr '^go: warning: example.com/retract/ambiguous/nested@v1.9.0-bad: retracted by module author: nested modules are bad$'

-- go.mod --
module example.com/use

go 1.16

See example.com_retract_self_pseudo_v1.9.0.txt.

This version is retracted.

-- .mod --
module example.com/retract/self/pseudo

go 1.15

-- .info --
{"Version":"v1.0.0-bad"}

-- p.go --

This version should be retracted, but the go.mod file for the version that would
contain the retraction is not available.
-- .mod --
module example.com/retract/missingmod

go 1.14
-- .info --
{"Version":"v1.0.0"}
-- missingmod.go --

See example.com_retract_self_pref_v1.9.0.txt.

This version is the latest (only) non-retracted version.

-- .mod --
module example.com/retract/self/prev

go 1.15

-- .info --
{"Version":"v1.1.0"}

-- p.go --

See example.com_retract_self_prev_v1.9.0.txt.

This version is retracted.

-- .mod --
module example.com/retract/self/prev

go 1.15

-- .info --
{"Version":"v1.0.0-bad"}

-- p.go --

example.com/cmd contains main packages.

v1.0.0 is the latest non-retracted version. Other versions contain errors or
detectable problems.

-- .info --
{"Version":"v1.0.0"}
-- .mod --
module example.com/cmd

go 1.16
-- go.mod --
module example.com/cmd

go 1.16
-- a/a.go --
package main

import "fmt"

func main() { fmt.Println("a@v1.0.0") }
-- b/b.go --
package main

import "fmt"

go list -m -u example.com/retract/noupgrade
stdout '^example.com/retract/noupgrade v1.0.0 \(retracted\)$'

-- go.mod --
module use

go 1.19

require example.com/retract/noupgrade v1.0.0
-- go.sum --

# Verifies #44494.
go mod edit -module=rsc.io/quote/v2
! go list -m all
stderr '^go: updates to go.mod needed; to update it:\n\tgo mod tidy$'
go mod tidy
go list -m all
cmp go.mod go.mod.want

# If a retracted version doesn't match the module's major version suffx,
# an error should be reported.
! go mod edit -retract=v3.0.1
stderr '^go: -retract=v3.0.1: version "v3.0.1" invalid: should be v2, not v3$'
cp go.mod.mismatch-v2 go.mod