README

Utility traits for PHPUnit test cases for interacting with protected and private methods and properties.

Requirements

PHP >= 7.0 is required, but the latest stable version of PHP is recommended.

Installation

$ composer require atanvarno/test-util:^0.1.0

Basic Usage

class YourTest extends \PHPUnit\Framework\TestCase
{
    // Include the traits
    use Atanvarno\PHPUnit\{CallProtectedMethodTrait, SetProtectedPropertyTrait};
    
    // Write your tests
    public function testYourMethod()
    {
        $testObject = new SomeClass();
        
        // Set an inaccessible property
        $this->setProtectedProperty($testObject, 'propertyName', 'value');
        
        // Call an inaccessible method
        $result = $this->callProtectedMethod(
            $testObject,
            'methodName',
            ['argument 1', 'argument 2', '...']
        );
        
        // Do your assertations
        // ...
    }
}

Atanvarno\PHPUnit\CallProtectedMethodTrait

Provides means to call a protected or private method of an object for test purposes.

public function callProtectedMethod($object, string $method, array $arguments = [])

Calls a protected or private method and returns its result.

Parameters

• object $object

  Required. The instance containing the method to call.

• string $method

  Required. The method name.

• mixed[] $arguments

  Optional. Defaults to []. Arguments to pass to the method.

Throws

• InvalidArgumentException

  Non-object passed as first parameter.

Returns

• mixed

  The return value of the method call.

Atanvarno\PHPUnit\SetProtectedPropertyTrait

Provides means to set a protected or private property of an object for test purposes.

public function setProtectedProperty($object, string $property, $value)

Sets a protected or private property.

Parameters

• object $object

  Required. The instance containing the property to set.

• string $property

  Required. The property name.

• mixed $value

  Required. The value to set.

Throws

• InvalidArgumentException

  Non-object passed as first parameter.

Returns

• void