hello-world

A simple Go Hello World example

GO go1.21 ✅ Build Success

go hello-world example

hello-world

A simple Go Hello World example

Details

Language: go
Environment: go1.21
Tags: go, hello-world, example

Build Information

Build Success: ✅ Yes
Last Built: 2025-08-10T07:39:55.856112-07:00
Total Duration: 4.321017377s

Execution Output

Hello, World!

Testing Output

=== RUN   TestHelloWorld
--- PASS: TestHelloWorld (0.00s)
=== RUN   TestHelloWorldNotEmpty
--- PASS: TestHelloWorldNotEmpty (0.00s)
PASS
ok  	example	0.001s

Source Code

Makefile

build:
	go mod init example 2>/dev/null || true
	go mod tidy
	go build -o main .

run:
	./main

test:
	go test -v ./...

clean:
	rm -f main
	go clean

autodoc.yaml

title: hello-world
description: A simple Go Hello World example
tags:
    - go
    - hello-world
    - example
environment: go1.21
created: 2025-08-05T15:44:22.165011-07:00
author: Developer

go.mod

module example

go 1.21.13

main.go

package main

import "fmt"

// HelloWorld returns a greeting message
func HelloWorld() string {
	return "Hello, World!"
}

// main demonstrates the HelloWorld function
func main() {
	message := HelloWorld()
	fmt.Println(message)
}

main_test.go

package main

import (
	"testing"
)

func TestHelloWorld(t *testing.T) {
	expected := "Hello, World!"
	result := HelloWorld()

	if result != expected {
		t.Errorf("HelloWorld() = %q; want %q", result, expected)
	}
}

func TestHelloWorldNotEmpty(t *testing.T) {
	result := HelloWorld()

	if result == "" {
		t.Error("HelloWorld() returned empty string")
	}
}

func BenchmarkHelloWorld(b *testing.B) {
	for i := 0; i < b.N; i++ {
		HelloWorld()
	}
}