// Ensure Benchmark initialized common.w by invoking it with an error and
	// normal case.
	Benchmark(func(b *B) { b.Error("do not print this output") })
	Benchmark(func(b *B) {})
}

func TestBenchmarkStartsFrom1(t *T) {
	var first = true
	Benchmark(func(b *B) {
		if first && b.N != 1 {
			panic(fmt.Sprintf("Benchmark() first N=%v; want 1", b.N))
		}
		first = false
	})
}