cp correct_modules.txt vendor/modules.txt
go build ./vendor/foo.com/internal/bar/a

# For go versions < 1.23, vendored packages that are missing in modules.txt should not result in an error.
cp 122go.mod go.mod

cp incorrect_modules.txt vendor/modules.txt

# go version < 1.23 and incorrect_modules is missing foo.com/internal/bar/b so the build should not fail

exec ./mkold$GOEXE 50s testcache/script.sh
go test testcache -run=Exec
! stdout '\(cached\)'
go test testcache -run=Exec
stdout '\(cached\)'

-- testcache/file.txt --
xx
-- 4x.txt --
xxxx
-- 6x.txt --
xxxxxx
-- 2y.txt --
yy
-- $WORK/external.txt --
This file is outside of GOPATH.
-- testcache/script.sh --
#!/bin/sh
exit 0
-- testcache/testcache_test.go --

go mod vendor
cmp vendor/example.com/a/samedir_embed.txt a/samedir_embed.txt
cmp vendor/example.com/a/subdir/embed.txt a/subdir/embed.txt
cmp vendor/example.com/a/subdir/test/embed.txt a/subdir/test/embed.txt
cmp vendor/example.com/a/subdir/test/xtest/embed.txt a/subdir/test/xtest/embed.txt

cd broken_no_matching_files
! go mod vendor
stderr '^go: resolving embeds in example.com/brokendep: pattern foo.txt: no matching files found$'
go mod vendor -e

# between the go.mod file and vendor/modules.txt.
# A 'go 1.13' vendor/modules.txt file is not usually sufficient
# to pass those checks.
go mod edit -go=1.14

! go list -f {{.Dir}} -tags tools all
stderr '^go: inconsistent vendoring in '$WORK[/\\]auto':$'
stderr '^\texample.com/printversion@v1.0.0: is explicitly required in go.mod, but not marked as explicit in vendor/modules.txt'

# https://golang.org/issue/36876: As of Go 1.17, vendor/modules.txt should
# indicate the language version used by each dependency.

[short] skip

# Control case: without a vendor directory, need117 builds and bad114 doesn't.

go build example.net/need117
! go build example.net/bad114
stderr '^bad114[/\\]bad114.go:15:2: duplicate method .?Y.?( .*)?$'


# With a vendor/modules.txt lacking language versions, the world is topsy-turvy,

-e .[all]
-r requirements-tests.txt
-r requirements-docs.txt
pre-commit >=2.17.0,<4.0.0
# For generating screenshots

cp go.work.firsterrlisted.txt go.work
! go list
stderr '^go.work:1: unknown godebug "baz"$'

-- foo/go.mod --
module example.com/foo
-- go.work.repeated.txt --


use foo
use foo
-- go.work.badgodebug.txt --


godebug foo=1
-- go.work.unparsable.txt --




notadirective
-- go.work.firstlineerr.txt --
godebug bar=1
-- go.work.firsterrlisted.txt --
godebug baz=1

# See issue #46400
[short] skip 'builds and links a binary twice'
go mod tidy
go mod vendor

go build -mod=vendor
go version -m example$GOEXE
cp stdout version-m.txt

env GOMODCACHE=$WORK${/}modcache
go build -mod=vendor
go version -m example$GOEXE
cmp stdout version-m.txt

-- go.mod --
module example
go 1.22
require rsc.io/sampler v1.3.0

-- main.go --
package main

import (
    "fmt"
    "rsc.io/sampler"

[exec:patch] ! stdout .
[exec:patch] cmp go.mod go.mod.tidyResult
[exec:patch] cmp go.sum go.sum.tidyResult

go list -deps -test -f $MODFMT all
cp stdout out-117.txt

go mod edit -go=1.16
go list -deps -test -f $MODFMT all
cmp stdout out-117.txt


# If we explicitly drop compatibility with 1.16, we retain fewer checksums,
# which gives a cleaner go.sum file but causes 1.16 to fail in readonly mode.

[exec:patch] exec patch -p1 -i diff.patch
[exec:patch] go mod tidy -diff
[exec:patch] cmp go.mod go.mod.tidyResult
[exec:patch] cmp go.sum go.sum.tidyResult

go list -m all
cmp stdout m_all.txt

go mod edit -go=1.16
go list -m all
cmp stdout m_all.txt


# If we explicitly drop compatibility with 1.16, we retain fewer checksums,
# which gives a cleaner go.sum file but causes 1.16 to fail in readonly mode.

cp go.mod.orig go.mod