README

PHPUnit extension to Mock PHP internal functions using Runkit.

Requirements

• Runkit
• Test Helpers*

*This is an optional requirement. Runkit doesn't currently support the override of internal functions (exit, die etc).

Installation

Using composer, add the following to the composer.json file:

{
   "require": {
       "lancerhe/phpunit-mock": "dev-master"
   }
}

Function Example

ExampleClass.php

<?php
class ExampleClass {
    public function doExample() {
        return date();
    }
}

ExampleClassTest.php

<?php
class ExampleClassTest extends \PHPUnit_Framework_TestCase {
    
    /**
     * @test
     */
    public function return_expected_value() {
        $param = 'Y-m-d H:i:s';
        $value = 'non date value';
    
        $mockFunction = new PHPUnit_Extensions_MockFunction('date', $this);
        $mockFunction->expects($this->once())
            ->with($this->equalTo($param))
            ->will($this->returnValue($value));
        
        $exampleClass = new ExampleClass();
        $this->assertEquals($value, $exampleClass->doExample($param));
    }
}

Class Example

ExampleClass.php

<?php
class Calculate {
    public $a, $b;
    public function __construct($a, $b) {
        $this->a = $a;
        $this->b = $b;
    }
    public function add() {
        return $this->a + $this->b;
    }

    public function minus() {
        return $this->a - $this->b;
    }
}

ExampleClassTest.php

<?php
class PHPUnit_Extensions_MockClassTest extends \PHPUnit_Framework_TestCase {

    /**
     * @test
     */
    public function method_return_expected_value() {
        $value = 'non value';

        $mockClass = new PHPUnit_Extensions_MockClass('Calculate', ['add'], $this);
        $mockClass->expects($this->any())
            ->method('add')
            ->will($this->returnValue($value));

        $this->assertEquals($value, (new Calculate(4, 2))->add());
    }
}