【golang】go mock单元测试stretchr/testify

分手后的思念是犯贱 2022-02-24 05:56 511阅读 0赞

# [`assert`][assert] package #

> The `assert` package provides some helpful methods that allow you to write better test code in Go.
> 
>  *  Prints friendly, easy to read failure descriptions
>  *  Allows for very readable code
>  *  Optionally annotate each assertion with a message

# [`require`][require] package  #

>       The `require` package provides same global functions as the `assert` package, but instead of returning a boolean result they terminate current test.

# [`mock`][mock] package #

>      The `mock` package provides a mechanism for easily writing mock objects that can be used in place of real objects when writing test code.
> 
>       An example test function that tests a piece of code that relies on an external object `testObj`, can setup expectations (testify) and assert that they indeed happened:

# [`suite`][suite] package #

>        The `suite` package provides functionality that you might be used to from more common object oriented languages. With it, you can build a testing suite as a struct, build setup/teardown methods and testing methods on your struct, and run them with 'go test' as per normal.

## 准备工作 ##

> go get github.com/stretchr/testify
> 
> go get github.com/vektra/mockery/.../

github.com/stretchr/testify/suite     github.com/stretchr/testify/mock

## 示例 ##

package main
    
    import (
    	"fmt"
    )
    
    func Cal(x int) (result int) {
    	return x + 2
    	
    }
    
    func main() {
    	fmt.Println("Hello World")
    }

测试用例

package main
    
    import (
    	"testing"
    )
    
    func TestCal(t *testing.T) {
    	if Cal(2) != 4 {
    		t.Error("Expected 2 + 2 to equal 4")
    	}
    }

[assert]: http://godoc.org/github.com/stretchr/testify/assert
[require]: http://godoc.org/github.com/stretchr/testify/require
[mock]: http://godoc.org/github.com/stretchr/testify/mock
[suite]: http://godoc.org/github.com/stretchr/testify/suite