go 1.16
-- mv2/README.txt --
This module is m/v2. It doesn't actually need to exist,
but it explains how module m could plausibly exist
and still contain package p at 'latest' even when module
m/p also exists.

-- mp01/go.mod --
module m/p

go 1.16
-- mp01/README.txt --
This module is m/p.
Package m/p does not exist in this module.
-- mp02/go.mod --
module m/p

go 1.16
-- mp02/README.txt --
This module is m/p.

package tx2_test

import . "vendor.org/tx2"
import "testing"

var Found = Exported

func TestNop(t *testing.T) {}

-- $GOPATH/src/github.com/rsc/go-get-issue-11864/vendor/vendor.org/tx2/export_test.go --
package tx2

var Exported = true

-- $GOPATH/src/github.com/rsc/go-get-issue-11864/vendor/vendor.org/tx2/tx2.go --
package tx2

? go test -race -i runtime/race

exec $GOBIN/mtime cgopath.txt # get the mtime of the file whose name is in cgopath.txt
cp stdout cgotime_after.txt
exec $GOBIN/sametime cgotime_before.txt cgotime_after.txt

-- go.mod --
module m

go 1.16
-- mtime/mtime.go --
package main

import (
	"encoding/json"
	"fmt"
	"os"
	"strings"
)

func main() {
	b, err := os.ReadFile(os.Args[1])
	if err != nil {

git init

at 2022-02-22T15:53:33-05:00
git add v2sub.go v2
git commit -m 'all: add package v2sub and v2sub/v2'
git branch -m main
git tag v2.0.0

at 2022-02-22T15:55:07-05:00
git add README.txt
git commit -m 'v2sub: add README.txt'

git show-ref --tags --heads
cmp stdout .git-refs

-- .git-refs --
80beb17a16036f17a5aedd1bb5bd6d407b3c6dc5 refs/heads/main
5fcd3eaeeb391d399f562fd45a50dac9fc34ae8b refs/tags/v2.0.0

# -modcacherw is supported on 'go mod' subcommands.
go clean -modcache
go mod download -modcacherw rsc.io/quote
cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
! go mod verify
[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod


-- $WORK/extraneous.txt --
module oops
-- go.mod --

echo 'intermediate'
cp stdout foo.txt
git add foo.txt
git commit -a -m 'intermediate'

at 2018-04-17T16:00:32-04:00
echo 'another'
cp stdout another.txt
git add another.txt
git commit -a -m 'another'
git tag v2.0.2

at 2018-04-17T16:16:52-04:00
git checkout master
git branch v3
git checkout v3
mkdir v3/sub/dir
echo 'v3/sub/dir/file'
cp stdout v3/sub/dir/file.txt
git add v3

git tag v2.3
git tag v2.0.1
git branch v2.3.4
git tag branch-v2.3.4

at 2018-04-17T16:00:19-04:00
echo 'intermediate'
cp stdout foo.txt
git add foo.txt
git commit -a -m 'intermediate'

at 2018-04-17T16:00:32-04:00
echo 'another'
cp stdout another.txt
git add another.txt
git commit -a -m 'another'
git tag v2.0.2
git tag branch-v2

at 2018-04-17T16:16:52-04:00
git checkout master
git branch v3

# Issue 28549: go test -c -o /dev/null should not overwrite /dev/null when run as root.
cd x
cmp $devnull $WORK/empty.txt
go test -o=$devnull -c
! exists x.test$GOEXE
cmp $devnull $WORK/empty.txt

# Issue 12407: go build -o /dev/null should succeed.
cd ..
go build -o $devnull y
cmp $devnull $WORK/empty.txt

-- x/x_test.go --
package x_test
import (
    "testing"
)
func TestNUL(t *testing.T) {
}
-- y/y.go --

[short] skip

go generate ./mod
cmp ./mod/got.txt want.txt

-- go.work --
go 1.22

use ./mod
-- mod/go.mod --
module example.com/mod
-- mod/gen.go --
//go:generate go run gen.go got.txt

package main

import "os"

func main() {
    outfile := os.Args[1]
    os.WriteFile(outfile, []byte("Hello World!\n"), 0644)
}
-- want.txt --

# requirements in go.mod are unused.  Regression test for
# golang.org/issue/36580

env GO111MODULE=on

go mod vendor
cmp go1.14-modules.txt vendor/modules.txt

-- go.mod --
module example.com/m
go 1.14

require example.com v1.0.0 // indirect
-- go.sum --
example.com v1.0.0/go.mod h1:WRiieAqDBb1hVdDXLLdxNtCDWNfehn7FWyPC5Oz2vB4=
-- go1.14-modules.txt --
# example.com v1.0.0