package main

import (
    "testing"

    "github.com/Vivino/go-api/app/helpers"
)

func BenchmarkSetSlice(b *testing.B) {
    s := helpers.NewSet32()
    for n := 0; n < b.N; n++ {
        s.Add(uint32(n))
    }

    foo := s.Slice()
    foo = foo
}

func BenchmarkHelperNativeSlicePreAlloc(b *testing.B) {
    s := make([]int, b.N)
    for n := 0; n < b.N; n++ {
        s[n] = n
    }
}

func BenchmarkHelperNativeSliceNoPreAlloc(b *testing.B) {
    var s []int
    for n := 0; n < b.N; n++ {
        s = append(s, n)
    }
}

/*
$ go test -bench=. slice_test.go -benchmem=true
2018/03/12 14:15:19 DEBUG Now using Go's stdlib log package (via loggers/mappers/stdlib).
goos: linux
goarch: amd64
BenchmarkSetSlice-4                         10000000       274 ns/op         29 B/op       0 allocs/op
BenchmarkHelperNativeSlicePreAlloc-4        1000000000       3.16 ns/op       8 B/op       0 allocs/op
BenchmarkHelperNativeSliceNoPreAlloc-4      300000000        4.52 ns/op      40 B/op       0 allocs/op
PASS
ok      command-line-argumentsfalse8.625s
*/