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Golang 单元测试资源和教程

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Golang 单元测试资源和教程

单元测试对于确保代码的健壮性和正确性至关重要。本文将介绍几种资源和教程,帮助您学习和实施 Golang 单元测试。

资源

官方文档:

  • [Testing in Go](https://go.dev/testing/)

书籍:

  • [Go Testing 2nd Edition](https://www.manning.com/books/go-testing-2nd-edition)
  • [The Go Programming Language](https://go.dev/book/testing/)

在线课程:

立即学习“go语言免费学习笔记(深入)”;

  • [Golang Unit Testing](https://www.udemy.com/course/go-lang-unit-testing/)
  • [Go Testing Foundations](https://www.coursera.org/learn/go-testing-foundations)

教程

设置单元测试:

import (
    "testing"
)

func TestAdd(t *testing.T) {
    // ...
}

编写断言:

if output != expected {
    t.Errorf("Expected %v, got %v", expected, output)
}

覆盖率:

func TestSomething(t *testing.T) {
    if coverage.Cmd == nil {
        t.Skip("coverage not enabled")
    }
    defer coverage.Stop()
    // ...
}

实战案例:

一个简单的添加函数:

func Add(a, b int) int {
    return a + b
}

单元测试:

func TestAdd(t *testing.T) {
    tests := []struct {
        input    []int
        expected int
    }{
        {[]int{1, 2}, 3},
        {[]int{-10, 10}, 0},
        {[]int{0, 0}, 0},
    }

    for _, test := range tests {
        output := Add(test.input[0], test.input[1])
        if output != test.expected {
            t.Errorf("Expected %v, got %v", test.expected, output)
        }
    }
}

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