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Table of Contents
How to use Mockery to extend PHP functions?
Preface
Set up Mockery
Extending PHP functions
Actual case
Conclusion
Home Backend Development PHP Tutorial How to extend PHP functions using Mockery?

How to extend PHP functions using Mockery?

Apr 11, 2024 pm 10:18 PM
composer php function mockery

Use Mockery to extend PHP functions and simulate the behavior of the function through the following steps: Install the Mockery library. Use Mockery::mock('alias:function name') to create a mock function, where alias is used to refer to the mock function and the function name is the function that needs to be mocked. Use shouldReceive('function name') and andReturn() to specify the return value or behavior of the simulated function. A mock function can be called via its alias and will return the expected results.

如何使用 Mockery 擴(kuò)展 PHP 函數(shù)?

How to use Mockery to extend PHP functions?

Preface

In unit testing, mocking (Mocking) is a powerful tool that allows us to create fake objects or functions without having to interact with them directly. Mockery is a popular mocking library in PHP that provides a simple and flexible way to mock a wide range of dependencies.

Set up Mockery

In order to use Mockery, you first need to install it:

composer require mockery/mockery

Extending PHP functions

Mockery can extend PHP functions, which means we can Replace the behavior of any PHP function to provide the desired results in tests.

Syntax:

Mockery::mock('alias:函數(shù)名稱');
  • alias: The name used to reference the simulated function
  • Function name : Name of the function being simulated

Actual case

Example 1: Simulationtime() Function

$mockTime = Mockery::mock('alias:time');
$mockTime->shouldReceive('time')
    ->andReturn(1234567890);

This will create a mock function named time which will return 1234567890 when called.

Example 2: Simulating the rand() function

$mockRand = Mockery::mock('alias:rand');
$mockRand->shouldReceive('rand')
    ->andReturnUsing(function($min, $max) {
        return $min + 1;
    });

This will create a mock function named rand, When called, a random number equal to the specified minimum value plus 1 will be returned.

Conclusion

By using Mockery to extend PHP functions, we can easily mock the behavior of dependencies and focus on testing the specific logic of the code. This greatly enhances unit testing capabilities and allows us to find and fix bugs more efficiently.

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