CODEWITHSUNDEEP
go
Kamath
Kamath

Reputation: 4664

Go benchmark run from main / go playground

I am trying to create a suite of benchmark tests

https://play.golang.org/p/uWWITU-WKaL

package main

import (
    "fmt"
    "testing"
)

func runall(a, b string) (bool, error) {
    return true, nil
}

func main() {
    bench := []testing.InternalBenchmark{
        {
            F: Benchmark_Dev,
        },
    }

    tests := []testing.InternalTest{
        {
            F: Test_Dev,
        },
    }
    testing.Main(runall, tests, bench, nil)
}

func Test_Dev(t *testing.T) {
    fmt.Println("Test_Dev")
}

func Benchmark_Dev(b *testing.B) {
    fmt.Println("Benchmark_Dev")
    b.ReportAllocs()
    for i := 0; i < b.N; i++ {
        res := i % 10
        fmt.Println(res)
    }
}

I see Tests are run fine, but the benchmarks are never run.

Upvotes: 4

Views: 3936

Answers (1)

Alex Yu
Alex Yu

Reputation: 3537

If you read "About" on Go Playground:

If the program contains tests or examples and no main function, the service runs the tests. Benchmarks will likely not be supported since the program runs in a sandboxed environment with limited resources.

You will find your answer

Upvotes: 7

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