src/cmd/go/testdata/script/test_benchmark_labels.txt

# Tests that go test -bench prints out goos, goarch, and pkg.

# Check for goos, goarch, and pkg.
go test -run ^$ -bench . bench
stdout '^goos: '$GOOS
stdout '^goarch: '$GOARCH
stdout '^pkg: bench'

# Check go test does not print pkg multiple times
! stdout 'pkg:.*pkg: '
! stderr 'pkg:.*pkg:'

-- bench/x_test.go --
package bench

import "testing"

func Benchmark(b *testing.B) {
}