env GOPROXY=$proxy/404
! go get rsc.io/quote@v1.0.0
stderr '404 Not Found'

# get should walk down the proxy list past 404 and 410 responses.
env GOPROXY=$proxy/404,$proxy/410,$proxy
go get rsc.io/quote@v1.1.0

# get should not walk past other 4xx errors if proxies are separated with ','.
env GOPROXY=$proxy/403,$proxy
! go get rsc.io/quote@v1.2.0
stderr 'reading.*/403/rsc.io/.*: 403 Forbidden'

cp go.mod.orig go.mod
go get rsc.io/quote/...
grep 'require rsc.io/quote' go.mod

cp go.mod.orig go.mod
! go get rsc.io/quote/x...
stderr 'go: module rsc.io/quote@upgrade found \(v1.5.2\), but does not contain packages matching rsc.io/quote/x...'
! grep 'require rsc.io/quote' go.mod

! go get rsc.io/quote/x/...

env GO111MODULE=on

! go get rsc.io/badfile1 rsc.io/badfile2 rsc.io/badfile3 rsc.io/badfile4 rsc.io/badfile5
! stderr 'unzip.*badfile1'
stderr 'unzip.*badfile2[\\/]@v[\\/]v1.0.0.zip:.*malformed file path "☺.go": invalid char ''☺'''
stderr 'unzip.*badfile3[\\/]@v[\\/]v1.0.0.zip: rsc.io[\\/]badfile3@v1.0.0[\\/]x\?y.go: malformed file path "x\?y.go": invalid char ''\?'''

go 1.18

use ./a
use ./b
-- a/go.mod --
go 1.18

module example.com/hi

require "rsc.io/quote" v1.5.2
-- a/go.sum --
rsc.io/sampler v1.3.0 h1:HLGR/BgEtI3r0uymSP/nl2uPLsUnNJX8toRyhfpBTII=
rsc.io/sampler v1.3.0/go.mod h1:U1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-- a/main.go --
package main

import (
	"fmt"
	"rsc.io/quote"
)

func main() {
	fmt.Println(quote.Hello())
}
-- b/go.mod --
go 1.18

env GO111MODULE=on

# After 'go get', the go.sum file should contain the sum for the module.
go get rsc.io/quote@v1.5.0
grep 'rsc.io/quote v1.5.0' go.sum

# If we replace the module and run 'go mod tidy', we should get a sum for the replacement.
go mod edit -replace rsc.io/quote@v1.5.0=rsc.io/quote@v1.5.1
go mod tidy
grep 'rsc.io/quote v1.5.1' go.sum
cp go.sum go.sum.tidy

env GOPROXY=direct
env GOSUMDB=off

go mod download rsc.io/quote@a91498bed0a73d4bb9c1fb2597925f7883bc40a7
exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.3-0.20180709162918-a91498bed0a7.info
exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.3-0.20180709162918-a91498bed0a7.mod
exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.3-0.20180709162918-a91498bed0a7.zip

go mod download rsc.io/quote@master

go get x
go list -m all
stdout 'rsc.io/breaker v2.0.0\+incompatible'

cp go.mod2 go.mod
go get rsc.io/breaker@7307b30
go list -m all
stdout 'rsc.io/breaker v2.0.0\+incompatible'

go get rsc.io/breaker@v2.0.0
go list -m all
stdout 'rsc.io/breaker v2.0.0\+incompatible'

-- go.mod --
module x

-- go.mod2 --
module x
require rsc.io/breaker v1.0.0

-- x.go --
package x
import "rsc.io/breaker"

go list -x -m all  # Download go.mod files.
! stderr github
stderr proxy.golang.org/rsc.io/quote
! stderr sum.golang.org/tile
! stderr sum.golang.org/lookup/rsc.io/quote

go list -x -deps rsc.io/quote  # Download module source.
! stderr github
stderr proxy.golang.org/rsc.io/quote
! stderr sum.golang.org/tile
! stderr sum.golang.org/lookup/rsc.io/quote

cmp go.sum saved.sum


# Download again.

cp go.mod.empty go.mod
go mod edit -require=rsc.io/quote@v1.5.1
go get -t -u m/a
grep 'rsc.io/quote v1.5.2$' go.mod

# 'go get -t -u' should not add or update test dependencies
# of imported packages, including packages imported from tests.
cp go.mod.empty go.mod
go get -t -u m/b
! grep rsc.io/quote go.mod
go mod edit -require=rsc.io/quote@v1.5.1
go get -t -u m/b
grep 'rsc.io/quote v1.5.1$' go.mod

rm go.sum
env GOPROXY=off
go get rsc.io/quote@v1.5.2 # using cache
rm $GOPATH/pkg/mod/cache/download/sumdb/localhost.localdev/sumdb/lookup/rsc.io/quote@v1.5.2
go get rsc.io/quote@v1.5.2 # using go.sum

# fetch fails once we lose access to both cache and go.sum
rm go.sum
env GOPROXY=$proxy/sumdb-504
! go get rsc.io/quote@v1.5.2
stderr 504

# GOINSECURE does not bypass checksum lookup
env GOINSECURE=rsc.io
env GOPROXY=$proxy/sumdb-504