go mod tidy
cp go.mod go.mod.orig

go list -test all
stdout rsc.io/quote
stdout golang.org/x/text/language

# why a package?
go mod why golang.org/x/text/language
cmp stdout why-language.txt

# why a module?
go mod why -m golang.org...
cmp stdout why-text-module.txt

# why a package used only in tests?
go mod why rsc.io/testonly
cmp stdout why-testonly.txt

# why a module used only in a test of a dependency?

go list -json .
stdout '"Name": "a"'
stdout '"Stale": true'
# Same thing for -json=true
go list -json=true .
stdout '"Name": "a"'
stdout '"Stale": true'

# Test -json=false produces non-json output.
go list -json=false
cmp stdout want-non-json.txt

# Test -json=<field> keeps only that field.
go list -json=Name
cmp stdout want-json-name.txt

# Test -json=<field> with multiple fields.

cd a
go install
go version -m $GOBIN/a$GOEXE
stdout '^\tbuild\tvcs=bzr$'
! stdout vcs.revision
! stdout vcs.time
stdout '^\tbuild\tvcs.modified=true$'
cd ..

# Revision and commit time are tagged for repositories with commits.
exec bzr add a README
exec bzr commit -m 'initial commit'
cd a
go install
go version -m $GOBIN/a$GOEXE
stdout '^\tbuild\tvcs=bzr$'
stdout '^\tbuild\tvcs.revision='
stdout '^\tbuild\tvcs.time='

[short] skip

# Packages in std do not have an install target.
go list -f '{{.Target}}' fmt
! stdout .
go list -export -f '{{.Export}}' fmt
stdout $GOCACHE

# With GODEBUG=installgoroot=all, fmt has a target.
# (Though we can't try installing it without modifying goroot).
env GODEBUG=installgoroot=all
go list -f '{{.Target}}' fmt
stdout fmt\.a

# However, the fake packages "builtin" and "unsafe" do not.

! go test -json .

	# We should see only JSON output on stdout, no non-JSON.
	# To simplify the check, we just look for non-curly-braces, since
	# every JSON entry has them and they're unlikely to occur
	# in other error messages.
! stdout '^[^{]'
! stdout '[^}]\n$'

	# Since the only test we requested failed to build, we should
	# not see any "pass" actions in the JSON stream.
! stdout '\{.*"Action":"pass".*\}'

go get rsc.io/sampler@v1.0.0
go list -m all
stdout 'rsc.io/quote v1.4.0'
stdout 'rsc.io/sampler v1.0.0'

# downgrade sampler away should downgrade quote further
go get rsc.io/sampler@none
go list -m all
stdout 'rsc.io/quote v1.3.0'

# downgrade should report inconsistencies and not change go.mod
go get rsc.io/quote@v1.5.1
go list -m all
stdout 'rsc.io/quote v1.5.1'
stdout 'rsc.io/sampler v1.3.0'

[!GOEXPERIMENT:coverageredesign] stdout 'pkg1	\[no test files\]'
[GOEXPERIMENT:coverageredesign] stdout 'pkg1		coverage: 0.0% of statements'
stdout 'pkg2	\S+	coverage: 0.0% of statements \[no tests to run\]'
stdout 'pkg3	\S+	coverage: 100.0% of statements'
stdout 'pkg4	\S+	coverage: \[no statements\]'

# Validate
go tool cover -func=cov.dat
[GOEXPERIMENT:coverageredesign] stdout 'pkg1/a.go:5:\s+F\s+0.0%'

-- go.mod --

[GOOS:plan9] env userconfig=$home/lib

go telemetry
stdout 'local'

go telemetry off
go telemetry
stdout 'off'
go env GOTELEMETRY
stdout 'off'

go telemetry local
go telemetry
stdout 'local'
go env GOTELEMETRY
stdout 'local'

go telemetry on
go telemetry
stdout 'on'
go env GOTELEMETRY
stdout 'on'

go env
stdout 'GOTELEMETRY=''?on''?'
stdout 'GOTELEMETRYDIR=''?'$userconfig'[\\/]go[\\/]telemetry''?'

! stdout .

# 'go list -retracted pkg' shows retraction.
go list -retracted -f '{{with .Module}}{{with .Retracted}}retracted{{end}}{{end}}' example.com/retract
stdout retracted

# 'go list -m' does not show retraction.
go list -m -f '{{with .Retracted}}retracted{{end}}' example.com/retract
! stdout .

# 'go list -m -retracted' shows retraction.

# Start at v0.1.1-0.20190429073117-b5426c86b553
go get example.com/pseudoupgrade@b5426c8
go list -m -u all
stdout '^example.com/pseudoupgrade v0.1.1-0.20190429073117-b5426c86b553$'

# 'get -u' should not downgrade to the (lower) tagged version.
go get -u
go list -m -u all
stdout '^example.com/pseudoupgrade v0.1.1-0.20190429073117-b5426c86b553$'

# 'get example.com/pseudoupgrade@upgrade' should not downgrade.