example.com/version
-- $WORK/modules-bad-1.13.txt --
# example.com/printversion v1.1.0
example.com/printversion
# example.com/version v1.1.0
example.com/version
-- $WORK/auto/vendor/example.com/printversion/go.mod --
module example.com/printversion

require example.com/version v1.0.0
replace example.com/version v1.0.0 => ../oops v0.0.0
exclude example.com/version v1.0.1

go mod download example.com/printversion@v0.1.0 example.com/printversion@v1.0.0
go get example.com/printversion@v0.1.0
go install example.com/printversion

go run example.com/printversion
cmp stdout out.txt

go version -m $GOPATH/bin/printversion$GOEXE
stdout '^.*[/\\]bin[/\\]printversion'$GOEXE': .*$'
stdout '^	path	example.com/printversion$'
stdout '^	mod	example.com/printversion	v0.1.0$'
stdout '^	=>	example.com/printversion	v1.0.0	h1:.*$'

# See mod_install_pkg_version.
rm $GOPATH/bin
go install example.com/printversion@v0.1.0
exists $GOPATH/bin/printversion$GOEXE

# 'go install' should fail if a package argument must be resolved to a module.
! go install example.com/printversion
stderr '^go: ''go install'' requires a version when current directory is not in a module\n\tTry ''go install example.com/printversion@latest'' to install the latest version$'

package b

import "example.com/q"

func TestB() {
	q.PrintVersion()
}
-- p/go.mod --
module example.com/p

go 1.18

require example.com/q v1.0.0

replace example.com/q v1.0.0 => ../q1_0_0
replace example.com/q v1.1.0 => ../q1_1_0
-- p/main.go --
package main

import "example.com/q"

func main() {
	q.PrintVersion()
}
-- q1_0_0/go.mod --
module example.com/q

go 1.18

stderr '^flag provided but not defined: -unknownflag$'
cp $WORK/extraneous.txt $GOPATH/pkg/mod/example.com/printversion@v0.1.0/extraneous_file.go
go clean -modcache


# Also try it with a 'go install' that succeeds.
# (But skip in short mode, because linking a binary is expensive.)
[!short] go install -modcacherw example.com/printversion@v0.1.0

[short] skip
go run example.com/printversion@v0.1.0
stdout '^main is example.com/printversion v0.1.0$'

-- go.work --
go 1.18

use (
	.
)
-- go.mod --
module example

go 1.18

example.com/printversion v1.0.0

-- .mod --
module example.com/printversion

require example.com/version v1.0.0
replace example.com/version v1.0.0 => ../oops v0.0.0
exclude example.com/version v1.1.0
-- .info --
{"Version":"v1.0.0"}
-- go.mod --
module example.com/printversion

require example.com/version v1.0.0
replace example.com/version v1.0.0 => ../oops v0.0.0
exclude example.com/version v1.0.1
-- printversion.go --
package main

package b

import "example.com/q"

func TestB() {
	q.PrintVersion()
}
-- p/go.mod --
module example.com/p

go 1.18

require example.com/q v1.0.0

replace example.com/q v1.0.0 => ../q1_0_0
replace example.com/q v1.1.0 => ../q1_1_0
-- p/main.go --
package main

import "example.com/q"

func main() {
	q.PrintVersion()
}
-- q1_0_0/go.mod --
module example.com/q

go 1.18

example.com/printversion v0.1.0

-- .mod --
module example.com/printversion
-- .info --
{"Version":"v0.1.0"}
-- README.txt --
There is no go.mod file for this version of the module.
-- printversion.go --
package main

import (
	"fmt"
	"os"
	"runtime/debug"

	_ "example.com/version"
)

func main() {
	info, _ := debug.ReadBuildInfo()
	fmt.Fprintf(os.Stdout, "path is %s\n", info.Path)

replace example.com/q v1.1.0 => ../q1_1_0
-- p/main.go --
package main

import "example.com/q"

func main() {
	q.PrintVersion()
}
-- q1_0_0/go.mod --
module example.com/q

go 1.18
-- q1_0_0/q.go --
package q

import "fmt"

func PrintVersion() {
	fmt.Println("version 1.0.0")
}
-- q1_0_5/go.mod --
module example.com/q

go 1.18

require example.com/r v1.0.0