DirectoryTest.php

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<?php
namespace Magento\Setup\Test\Unit\Module\Di\Code\Reader\InstancesNamesList;

use Magento\Setup\Module\Di\Compiler\Log\Log;

class DirectoryTest extends \PHPUnit\Framework\TestCase
{
    private $classesScanner;

    private $classReaderMock;

    private $model;

    private $validatorMock;

    private $logMock;

    protected function setUp()
    {
        $this->logMock = $this->getMockBuilder(\Magento\Setup\Module\Di\Compiler\Log\Log::class)
            ->disableOriginalConstructor()
            ->setMethods(['add'])
            ->getMock();

        $this->classesScanner = $this->getMockBuilder(\Magento\Setup\Module\Di\Code\Reader\ClassesScanner::class)
            ->disableOriginalConstructor()
            ->setMethods(['getList'])
            ->getMock();

        $this->classReaderMock = $this->getMockBuilder(\Magento\Framework\Code\Reader\ClassReader::class)
            ->disableOriginalConstructor()
            ->setMethods(['getParents'])
            ->getMock();

        $this->validatorMock = $this->getMockBuilder(\Magento\Framework\Code\Validator::class)
            ->disableOriginalConstructor()
            ->setMethods(['validate'])
            ->getMock();

        $this->model = new \Magento\Setup\Module\Di\Code\Reader\Decorator\Directory(
            $this->logMock,
            $this->classReaderMock,
            $this->classesScanner,
            $this->validatorMock,
            '/generated/code'
        );
    }

    public function testGetList()
    {
        $path = '/tmp/test';

        $classes = ['NameSpace1\ClassName1', 'NameSpace1\ClassName2'];

        $this->classesScanner->expects($this->once())
            ->method('getList')
            ->with($path)
            ->willReturn($classes);

        $parents = [
            ['NameSpace1\ClassName1', ['Parent_Class_Name', 'Interface_1', 'Interface_2']],
            ['NameSpace1\ClassName2', ['Parent_Class_Name', 'Interface_1', 'Interface_2']]
        ];

        $this->classReaderMock->expects($this->exactly(count($classes)))
            ->method('getParents')
            ->will($this->returnValueMap(
                $parents
            ));

        $this->logMock->expects($this->never())
            ->method('add');

        $this->validatorMock->expects($this->exactly(count($classes)))
            ->method('validate');

        $this->model->getList($path);
        $result = $this->model->getRelations();

        $expected = [
            $classes[0] => $parents[0][1],
            $classes[1] => $parents[1][1]
        ];

        $this->assertEquals($result, $expected);
    }

    public function testGetListNoValidation()
    {
        $path = '/generated/code';

        $classes = ['NameSpace1\ClassName1', 'NameSpace1\ClassName2'];

        $this->classesScanner->expects($this->once())
            ->method('getList')
            ->with($path)
            ->willReturn($classes);

        $parents = [
            ['NameSpace1\ClassName1', ['Parent_Class_Name', 'Interface_1', 'Interface_2']],
            ['NameSpace1\ClassName2', ['Parent_Class_Name', 'Interface_1', 'Interface_2']]
        ];

        $this->classReaderMock->expects($this->exactly(count($classes)))
            ->method('getParents')
            ->will($this->returnValueMap(
                $parents
            ));

        $this->logMock->expects($this->never())
            ->method('add');

        $this->validatorMock->expects($this->never())
            ->method('validate');

        $this->model->getList($path);
        $result = $this->model->getRelations();

        $expected = [
            $classes[0] => $parents[0][1],
            $classes[1] => $parents[1][1]
        ];

        $this->assertEquals($result, $expected);
    }

    public function testGetListException(\Exception $exception)
    {
        $path = '/tmp/test';

        $classes = ['NameSpace1\ClassName1'];

        $this->classesScanner->expects($this->once())
            ->method('getList')
            ->with($path)
            ->willReturn($classes);

        $this->logMock->expects($this->once())
            ->method('add')
            ->with(Log::COMPILATION_ERROR, $classes[0], $exception->getMessage());

        $this->validatorMock->expects($this->exactly(count($classes)))
            ->method('validate')
            ->will(
                $this->throwException($exception)
            );

        $this->model->getList($path);

        $result = $this->model->getRelations();

        $this->assertEquals($result, []);
    }

    public function getListExceptionDataProvider()
    {
        return [
            [new \Magento\Framework\Exception\ValidatorException(new \Magento\Framework\Phrase('Not Valid!'))],
            [new \ReflectionException('Not Valid!')]
        ];
    }
}