stderr '\n\nTo proceed despite packages unresolved in go 1\.16:\n\tgo mod tidy -e\nIf reproducibility with go 1.16 is not needed:\n\tgo mod tidy -compat=1\.17\nFor other options, see:\n\thttps://golang\.org/doc/modules/pruning\n'

cmp go.mod go.mod.orig

# Make sure that -diff behaves the same as tidy.
[exec:patch] cp go.mod.orig go.mod
[exec:patch] ! exists go.sum
[exec:patch] ! go mod tidy -diff
[exec:patch] ! stdout .

# The suggested 'go mod tidy -e' command should proceed anyway.

go mod tidy -e
cmp go.mod go.mod.tidy

# Make sure that -diff behaves the same as tidy.
[exec:patch] cp go.mod go.mod.tidyResult

cmp go.mod go.mod.orig

# Make sure that -diff behaves the same as tidy.
[exec:patch] cp go.mod.orig go.mod
[exec:patch] ! exists go.sum
[exec:patch] ! go mod tidy -diff
[exec:patch] ! stdout .

! go bug help
stderr 'bug takes no arguments'

# go help mod shows mod subcommands
go help mod
stdout 'go mod <command>'
stdout tidy

# go help mod tidy explains tidy
go help mod tidy
stdout 'usage: go mod tidy'

# go mod help tidy does too
go mod help tidy
stdout 'usage: go mod tidy'

# go mod --help doesn't print help but at least suggests it.
! go mod --help
stderr 'Run ''go help mod'' for usage.'

# 'go mod init' should not recommend 'go mod tidy' in an empty directory
# (one that contains no non-hidden .go files or subdirectories).
cd empty
go mod init m
! stderr tidy
cd ..

# 'go mod init' should recommend 'go mod tidy' if the directory has a .go file.
cd pkginroot
go mod init m
stderr '^go: to add module requirements and sums:\n\tgo mod tidy$'
cd ..

# 'go mod init' should recommend 'go mod tidy' if the directory has a

cd multiple-paths
! go mod tidy
stderr 'rsc.io/quote/v3@v3.0.0 used for two different module paths \(not-rsc.io/quote/v3 and rsc.io/quote/v3\)'

-- go.mod --
module example.com/tidy

require rsc.io/quote/v3 v3.0.0
replace rsc.io/quote/v3 => ./not-rsc.io/quote/v3

-- imports.go --
package tidy

import _ "rsc.io/quote/v3"

-- outside/go.mod --
module example.com/tidy/outside

require example.com/tidy v0.0.0

        given:
        node("root")
        node("mid1")
        node("leaf1")
        node("leaf2")

        resolvedConf("root", [dep("root", "mid1")])

        resolvedConf("mid1", [dep("mid1", "leaf1")])
        resolvedConf("mid1", [dep("mid1", "leaf1")]) //dupe
        resolvedConf("mid1", [dep("mid1", "leaf2")])

        resolvedConf("leaf1", [])
        resolvedConf("leaf2", [])

# Supported versions should change the go.mod file to be tidy according to the
# indicated version.

go mod tidy -go=1.15
cmp go.mod go.mod.115

go mod tidy
cmp go.mod go.mod.115


go mod tidy -go=1.16
cmp go.mod go.mod.116

go mod tidy
cmp go.mod go.mod.116


go mod tidy -go=1.17
cmp go.mod go.mod.117

go mod tidy
cmp go.mod go.mod.117

# Regression test for https://go.dev/issue/51992

# 'go mod tidy' should error instead of throwing panic in the situation below.
# 1. /tmp/go.mod exists
# 2. run 'go mod tidy' in /tmp or in the child directory not having go.mod.

[GOOS:plan9] stop  # Plan 9 has no $TMPDIR variable to set.

env GOROOT=$TESTGO_GOROOT
env TMP=$WORK
env TMPDIR=$WORK
mkdir $WORK/child

! go mod tidy
! stdout .

env GO111MODULE=on

# tidy removes unused y, but everything else is used
go mod tidy -v
stderr '^unused y.1'
! stderr '^unused [^y]'

grep 'go 1.10' go.mod

go list -m all
! stdout '^y'
stdout '^w.1 v1.2.0'
stdout '^z.1 v1.2.0'

# empty tidy should not crash
cd triv
! grep 'go ' go.mod
go mod tidy

# tidy should add missing go line
grep 'go ' go.mod

-- go.mod --
module m

go 1.10

require (