[!net] skip
[!exec:git] skip

env GO111MODULE=on
env GOPROXY=direct
env GOSUMDB=off
env GOFLAGS=-mod=mod

# Regression test for golang.org/issue/27173: if the user (or go.mod file)
# requests a pseudo-version that does not match both the module path and commit
# metadata, reject it with a helpful error message.
#
# TODO(bcmills): Replace the github.com/pierrec/lz4 examples with something
# equivalent on vcs-test.golang.org.

# An incomplete commit hash is not a valid semantic version,
# but can appear in the main go.mod file anyway and should be resolved.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 \(replaced by \./\.\.\): parsing ..[/\\]go.mod: '$WORK'[/\\]gopath[/\\]src[/\\]go.mod:5: require golang.org/x/text: version "14c0d48ead0c" invalid: must be of the form v1.2.3'
cd ..
go list -m golang.org/x/text
stdout 'golang.org/x/text v0.1.1-0.20170915032832-14c0d48ead0c'
grep 'golang.org/x/text v0.1.1-0.20170915032832-14c0d48ead0c' go.mod

# A module path below the repo root that does not contain a go.mod file is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text/unicode@v0.0.0-20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text/unicode@v0.0.0-20170915032832-14c0d48ead0c: invalid version: missing golang.org/x/text/unicode/go.mod at revision 14c0d48ead0c'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text/unicode@v0.0.0-20170915032832-14c0d48ead0c: invalid version: missing golang.org/x/text/unicode/go.mod at revision 14c0d48ead0c'

# However, arguments to 'go get' can name packages above the root.
cp go.mod.orig go.mod
go get golang.org/x/text/unicode@v0.0.0-20170915032832-14c0d48ead0c
go list -m golang.org/x/text/...
stdout 'golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c'
! stdout 'golang.org/x/text/unicode'

# A major version that does not match the module path is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v2.1.1-0.20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 \(replaced by \./\.\.\): parsing ..[/\\]go.mod: '$WORK'[/\\]gopath[/\\]src[/\\]go.mod:5: require golang.org/x/text: version "v2.1.1-0.20170915032832-14c0d48ead0c" invalid: should be v0 or v1, not v2'
cd ..
! go list -m golang.org/x/text
stderr $WORK'[/\\]gopath[/\\]src[/\\]go.mod:5: require golang.org/x/text: version "v2.1.1-0.20170915032832-14c0d48ead0c" invalid: should be v0 or v1, not v2'

# A pseudo-version with fewer than 12 digits of SHA-1 prefix is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0: invalid pseudo-version: revision is shorter than canonical \(expected 14c0d48ead0c\)'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0: invalid pseudo-version: revision is shorter than canonical \(expected 14c0d48ead0c\)'

# A pseudo-version with more than 12 digits of SHA-1 prefix is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0cd47e3104ada247d91be04afc7a5a
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0cd47e3104ada247d91be04afc7a5a: invalid pseudo-version: revision is longer than canonical \(expected 14c0d48ead0c\)'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0cd47e3104ada247d91be04afc7a5a: invalid pseudo-version: revision is longer than canonical \(expected 14c0d48ead0c\)'

# A pseudo-version that does not match the commit timestamp is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.1.1-0.20190915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.1.1-0.20190915032832-14c0d48ead0c: invalid pseudo-version: does not match version-control timestamp \(expected 20170915032832\)'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.1.1-0.20190915032832-14c0d48ead0c: invalid pseudo-version: does not match version-control timestamp \(expected 20170915032832\)'

# A 'replace' directive in the main module can replace an invalid timestamp
# with a valid one.
go mod edit -replace golang.org/x/text@v0.1.1-0.20190915032832-14c0d48ead0c=golang.org/x/text@14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.1.1-0.20190915032832-14c0d48ead0c: invalid pseudo-version: does not match version-control timestamp \(expected 20170915032832\)'
cd ..
go list -m golang.org/x/text
stdout 'golang.org/x/text v0.1.1-0.20190915032832-14c0d48ead0c => golang.org/x/text v0.1.1-0.20170915032832-14c0d48ead0c'

# A pseudo-version that is not derived from a tag is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v1.999.999-0.20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v1.999.999-0.20170915032832-14c0d48ead0c: invalid pseudo-version: preceding tag \(v1.999.998\) not found'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v1.999.999-0.20170915032832-14c0d48ead0c: invalid pseudo-version: preceding tag \(v1.999.998\) not found'

# A v1.0.0- pseudo-version that is not derived from a tag is invalid:
# v1.0.0- implies no tag, but the correct no-tag prefix for a module path
# without a major-version suffix is v0.0.0-.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v1.0.0-20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v1.0.0-20170915032832-14c0d48ead0c: invalid pseudo-version: major version without preceding tag must be v0, not v1'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v1.0.0-20170915032832-14c0d48ead0c: invalid pseudo-version: major version without preceding tag must be v0, not v1'

# A pseudo-version vX.Y.Z+1 cannot have Z+1 == 0, since that would
# imply a base tag with a negative patch field.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.0.0-0.20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.0.0-0.20170915032832-14c0d48ead0c: invalid pseudo-version: version before v0.0.0 would have negative patch number'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.0.0-0.20170915032832-14c0d48ead0c: invalid pseudo-version: version before v0.0.0 would have negative patch number'

# A 'replace' directive in the main module can replace an
# invalid pseudo-version base with a valid one.
go mod edit -replace golang.org/x/text@v0.0.0-0.20170915032832-14c0d48ead0c=golang.org/x/text@v0.0.0-20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.0.0-0.20170915032832-14c0d48ead0c: invalid pseudo-version: version before v0.0.0 would have negative patch number'
cd ..
go list -m golang.org/x/text
stdout 'golang.org/x/text v0.0.0-0.20170915032832-14c0d48ead0c => golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c'

# A 'replace' directive can replace an invalid 'latest' version, and
# should suppress errors for that version in 'go get -u'
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v1.999999.0
go mod edit -replace golang.org/x/text@v1.999999.0=golang.org/x/text@v0.0.0-20170915032832-14c0d48ead0c
cd outside
! go get golang.org/x/text@upgrade
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v1.999999.0: reading golang.org/x/text/go.mod at revision v1.999999.0: unknown revision v1.999999.0'
cd ..
go get golang.org/x/text@upgrade
go list -m golang.org/x/text
stdout 'golang.org/x/text v1.999999.0 => golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c'

# A pseudo-version derived from a non-ancestor tag is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.2.1-0.20170915032832-14c0d48ead0c
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.2.1-0.20170915032832-14c0d48ead0c: invalid pseudo-version: revision 14c0d48ead0c is not a descendent of preceding tag \(v0.2.0\)'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.2.1-0.20170915032832-14c0d48ead0c: invalid pseudo-version: revision 14c0d48ead0c is not a descendent of preceding tag \(v0.2.0\)'

# A pseudo-version derived from a canonical tag on the same revision is invalid.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.2.1-0.20171213102548-c4d099d611ac
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.2.1-0.20171213102548-c4d099d611ac: invalid pseudo-version: tag \(v0.2.0\) found on revision c4d099d611ac is already canonical, so should not be replaced with a pseudo-version derived from that tag'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.2.1-0.20171213102548-c4d099d611ac: invalid pseudo-version: tag \(v0.2.0\) found on revision c4d099d611ac is already canonical, so should not be replaced with a pseudo-version derived from that tag'

# A +incompatible suffix is not allowed on a version that is actually compatible.
cp go.mod.orig go.mod
go mod edit -require golang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0c+incompatible
cd outside
! go list -m golang.org/x/text
stderr 'go: example.com@v0.0.0 requires\n\tgolang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0c\+incompatible: invalid version: \+incompatible suffix not allowed: major version v0 is compatible'
cd ..
! go list -m golang.org/x/text
stderr 'golang.org/x/text@v0.1.1-0.20170915032832-14c0d48ead0c\+incompatible: invalid version: \+incompatible suffix not allowed: major version v0 is compatible'

# The pseudo-version for a commit after a tag with a non-matching major version
# should instead be based on the last matching tag.
cp go.mod.orig go.mod
go mod edit -require github.com/pierrec/lz4@473cd7ce01a1
go list -m github.com/pierrec/lz4
stdout 'github.com/pierrec/lz4 v1.0.2-0.20190131084431-473cd7ce01a1'
cd outside
go list -m github.com/pierrec/lz4
stdout 'github.com/pierrec/lz4 v1.0.2-0.20190131084431-473cd7ce01a1'
cd ..

# A +incompatible pseudo-version for a module that has an explicit go.mod file is invalid.
cp go.mod.orig go.mod
go mod edit -require github.com/pierrec/lz4@v2.0.9-0.20190209155647-9a39efadad3d+incompatible
cd outside
! go list -m github.com/pierrec/lz4
stderr '^go: example.com@v0.0.0 requires\n\tgithub.com/pierrec/lz4@v2.0.9-0.20190209155647-9a39efadad3d\+incompatible: invalid version: module contains a go.mod file, so module path must match major version \("github.com/pierrec/lz4/v2"\)$'
cd ..
! go list -m github.com/pierrec/lz4
stderr '^go: github.com/pierrec/lz4@v2.0.9-0.20190209155647-9a39efadad3d\+incompatible: invalid version: module contains a go.mod file, so module path must match major version \("github.com/pierrec/lz4/v2"\)$'

# A +incompatible pseudo-version is valid for a revision of the module
# that lacks a go.mod file.
cp go.mod.orig go.mod
go mod edit -require github.com/pierrec/lz4@v2.0.4-0.20180826165652-dbe9298ce099+incompatible
cd outside
go list -m github.com/pierrec/lz4
stdout 'github.com/pierrec/lz4 v2.0.4-0.20180826165652-dbe9298ce099\+incompatible'
cd ..
go list -m github.com/pierrec/lz4
stdout 'github.com/pierrec/lz4 v2.0.4-0.20180826165652-dbe9298ce099\+incompatible'

# 'go get' for a mismatched major version without a go.mod file should resolve
# to the equivalent +incompatible version, not a pseudo-version with a different
# major version.
cp go.mod.orig go.mod
go get github.com/pierrec/lz4@v2.0.5
go list -m github.com/pierrec/lz4
stdout 'github.com/pierrec/lz4 v2.0.5\+incompatible'

# 'go get' for a mismatched major version with a go.mod file should error out,
# not resolve to a pseudo-version with a different major version.
cp go.mod.orig go.mod
! go get github.com/pierrec/lz4@v2.0.8
stderr 'go: github.com/pierrec/lz4@v2.0.8: invalid version: module contains a go.mod file, so module path must match major version \("github.com/pierrec/lz4/v2"\)$'

# An invalid +incompatible suffix for a canonical version should error out,
# not resolve to a pseudo-version.
#
# TODO(bcmills): The "outside" view for this failure mode is missing its import stack.
# Figure out why and fix it.
cp go.mod.orig go.mod
go mod edit -require github.com/pierrec/lz4@v2.0.8+incompatible
cd outside
! go list -m github.com/pierrec/lz4
stderr '^go: github.com/pierrec/lz4@v2.0.8\+incompatible: invalid version: module contains a go.mod file, so module path must match major version \("github.com/pierrec/lz4/v2"\)$'
cd ..
! go list -m github.com/pierrec/lz4
stderr '^go: github.com/pierrec/lz4@v2.0.8\+incompatible: invalid version: module contains a go.mod file, so module path must match major version \("github.com/pierrec/lz4/v2"\)$'

-- go.mod.orig --
module example.com

go 1.13
-- outside/go.mod --
module example.com/outside

go 1.13

require example.com v0.0.0
replace example.com v0.0.0 => ./..