-- go.mod --
module example.net/m

go 1.16

replace (
	example.net/a v0.1.0 => ./a
	example.net/b v0.1.0 => ./b
	example.net/b v0.1.1 => ./b
	example.net/m v0.1.0 => ./m1
)

require example.net/a v0.1.0
-- go.mod.want --
module example.net/m

go 1.16

replace (
	example.net/a v0.1.0 => ./a
	example.net/b v0.1.0 => ./b
	example.net/b v0.1.1 => ./b
	example.net/m v0.1.0 => ./m1
)

module example.com/m

go 1.17

replace (
	example.net/added v0.1.0 => ./a1
	example.net/added v0.2.0 => ./a2
	example.net/added v0.3.0 => ./a1
	example.net/lazy v0.1.0 => ./lazy
	example.net/pruned v0.1.0 => ./pruned
)

require (
	example.net/added v0.1.0
	example.net/lazy v0.1.0
)
-- go.mod.tidy --
module example.com/m

go 1.17

replace (
	example.net/added v0.1.0 => ./a1
	example.net/added v0.2.0 => ./a2

example.com/m
example.net/ambiguous v0.1.0
example.net/ambiguous/nested v0.1.0
example.net/indirect v0.1.0 => ./indirect
-- m.go --
package m

import _ "example.net/indirect"

-- indirect/go.mod --
module example.net/indirect

go 1.17

require example.net/ambiguous v0.1.0
-- indirect/indirect.go --
package indirect

			},
			want: []string{
				"kernel.shm_rmid_forced",
				"net.ipv4.ip_local_port_range",
				"net.ipv4.tcp_syncookies",
				"net.ipv4.ping_group_range",
				"net.ipv4.ip_unprivileged_port_start",
				"net.ipv4.ip_local_reserved_ports",
				"net.ipv4.tcp_keepalive_time",
				"net.ipv4.tcp_fin_timeout",
				"net.ipv4.tcp_keepalive_intvl",
				"net.ipv4.tcp_keepalive_probes",
			},
		},
	}
	for _, tt := range tests {

! go get example.net/a@patch
stderr '^go: example.net/a@patch \(v0.1.1\) indirectly requires example.net/a@v0.2.0, not example.net/a@patch \(v0.1.1\)$'  # TODO: A mention of b v0.1.0 would be nice.

-- go.mod --
module example

go 1.16

require example.net/a v0.1.0

replace (
	example.net/a v0.1.0 => ./a10
	example.net/a v0.1.1 => ./a11
	example.net/a v0.2.0 => ./a20
	example.net/b v0.1.0 => ./b10

go get example.net/ambiguous/nested/pkg@v0.1.0 example.net/ambiguous/nested@none
go list -m all
! stdout '^example.net/ambiguous/nested '
stdout '^example.net/ambiguous v0.1.0$'


# The user should also be able to fix it by *downgrading* the conflicting module
# away.

cp go.mod.orig go.mod
go mod edit -require=example.net/ambiguous@v0.1.0

[!compiler:gc] skip

go list -f '{{.Dir}}' vendor/golang.org/x/net/http2/hpack
stdout $GOPATH[/\\]src[/\\]vendor

# A package importing 'net/http' should resolve its dependencies
# to the package 'vendor/golang.org/x/net/http2/hpack' within GOROOT.
cd importnethttp
go list -deps -f '{{.ImportPath}} {{.Dir}}'
stdout ^vendor/golang.org/x/net/http2/hpack
stdout $GOROOT[/\\]src[/\\]vendor[/\\]golang.org[/\\]x[/\\]net[/\\]http2[/\\]hpack

go 1.21

require (
	example.net/a v0.1.0
	example.net/b v0.1.0
)

require example.net/outer/inner v0.1.0 // indirect

replace (
	example.net/a v0.1.0 => ./a
	example.net/b v0.1.0 => ./b
	example.net/outer v0.1.0 => ./outer
	example.net/outer/inner v0.1.0 => ./inner
)
-- example.go --
package example

import (
	_ "example.net/a"
	_ "example.net/b"
)
-- a/go.mod --
module example.net/a

go build example.net/need117

grep '^## explicit; go 1.13$' vendor/modules.txt
! go build example.net/bad114
stderr '^vendor[/\\]example\.net[/\\]bad114[/\\]bad114.go:15:2: duplicate method .?Y.?( .*)?$'

-- go.mod --
module example.net/m

go 1.16

require (
	example.net/bad114 v0.1.0
	example.net/need117 v0.1.0
)

replace (
	example.net/bad114 v0.1.0 => ./bad114

go get example.net/c@v0.1.0

-- go.mod --
module example

go 1.19

require (
	example.net/a v0.1.0
	example.net/b v0.1.0
)

replace (
	example.net/a v0.1.0 => ./a1
	example.net/a v0.2.0 => ./a2
	example.net/b v0.1.0 => ./b1
	example.net/b v0.2.0 => ./b2
	example.net/c v0.1.0 => ./c1
)
-- a1/go.mod --
module example.net/a

go 1.19
-- a2/go.mod --