Automation tool for Golang function testing

testify/assert is a popular function test automation tool in the Go language. By installing and importing this tool, you can use a series of assertion functions to check whether the expected value is equal to the actual value, such as Equal(t, expected, actual ) and True(t, actual). Practical examples of this tool include using assert.Equal(t, 4, double(2)) to test whether the double function works as expected. The advantage of testify/assert is that it provides a fast and efficient way to verify the correctness of a function, which is crucial in large Go projects.

Go language function test automation tool

Introduction

For large Go projects, function test automation is crucial. It is a quick and efficient way to check whether a function is working as expected. There are many tools that can help with this, and this article will look at one of the most popular: testify/assert.

Installation

go get -u github.com/stretchr/testify/assert

Use

testify/assert provides a series of assertion functions that can be used to check expected values ​​and actual values. Here are some of the most commonly used assertion functions:

• Equal(t, expected, actual): Checks whether two values ​​are equal.
• EqualError(t, expectedError, actualError): Check whether error messages are equal.
• True(t, actual): Check whether the Boolean value is true.
• False(t, actual): Check whether the Boolean value is false.

Practical case

Here’s how to use testify/assert to test a simple function:

import (
    "testing"

    "github.com/stretchr/testify/assert"
)

func double(n int) int {
    return n * 2
}

func TestDouble(t *testing.T) {
    assert.Equal(t, 4, double(2))
    assert.Equal(t, 6, double(3))
}

To run the test, run the following command:

go test -v

The output is as follows:

=== RUN   TestDouble
--- PASS: TestDouble (0.01s)
PASS
ok  github.com/example/myproject  0.022s

Conclusion

testify/assert is a powerful tool for automated Go function testing. It provides a series of assertion functions that can easily check expected values ​​against actual values. By using testify/assert, you can quickly and efficiently ensure that your functions work as expected.

The above is the detailed content of Automation tool for Golang function testing. For more information, please follow other related articles on the PHP Chinese website!