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<?php

namespace PharIo\Manifest;

use DOMDocument;

class CopyrightElementTest extends \PHPUnit_Framework_TestCase {
    /**
     * @var DOMDocument
     */
    private $dom;

    /**
     * @var CopyrightElement
     */
    private $copyright;

    protected function setUp() {
        $this->dom = new DOMDocument();
        $this->dom->loadXML('<?xml version="1.0" ?><copyright xmlns="https://phar.io/xml/manifest/1.0" />');
        $this->copyright = new CopyrightElement($this->dom->documentElement);
    }

    public function testThrowsExceptionWhenGetAuthroElementsIsCalledButNodesAreMissing() {
        $this->expectException(ManifestElementException::class);
        $this->copyright->getAuthorElements();
    }

    public function testThrowsExceptionWhenGetLicenseElementIsCalledButNodeIsMissing() {
        $this->expectException(ManifestElementException::class);
        $this->copyright->getLicenseElement();
    }

    public function testGetAuthorElementsReturnsAuthorElementCollection() {
        $this->dom->documentElement->appendChild(
            $this->dom->createElementNS('https://phar.io/xml/manifest/1.0', 'author')
        );
        $this->assertInstanceOf(
            AuthorElementCollection::class, $this->copyright->getAuthorElements()
        );
    }

    public function testGetLicenseElementReturnsLicenseElement() {
        $this->dom->documentElement->appendChild(
            $this->dom->createElementNS('https://phar.io/xml/manifest/1.0', 'license')
        );
        $this->assertInstanceOf(
            LicenseElement::class, $this->copyright->getLicenseElement()
        );
    }

}