ChainingTest.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Tests\UI\Help\TextRetriever;
 
use ILIAS\UI\HelpTextRetriever;
use ILIAS\UI\Help\TextRetriever\Chaining;
use ILIAS\UI\Help\Topic;
use ILIAS\UI\Help\Purpose;
use PHPUnit\Framework\TestCase;
 
class ChainingTest extends TestCase
{
    protected HelpTextRetriever $retriever_a;
    protected HelpTextRetriever $retriever_b;
 
    public function setUp(): void
    {
        $this->retriever_a = new class () implements HelpTextRetriever {
            public function getHelpText(Purpose $purpose, Topic ...$topics): array
            {
                return ["a"];
            }
        };
 
        $this->retriever_b = new class () implements HelpTextRetriever {
            public function getHelpText(Purpose $purpose, Topic ...$topics): array
            {
                return ["b"];
            }
        };
    }
 
    public function testGetHelpTextChaining(): void
    {
        $retriever = new Chaining($this->retriever_a, $this->retriever_b);
 
        $result = $retriever->getHelpText(new Purpose(Purpose::PURPOSE_TOOLTIP));
 
        $this->assertEquals(["a", "b"], $result);
    }
 
    public function testGetHelpTextRemovesDuplicates(): void
    {
        $retriever = new Chaining($this->retriever_a, $this->retriever_a);
 
        $result = $retriever->getHelpText(new Purpose(Purpose::PURPOSE_TOOLTIP));
 
        $this->assertEquals(["a"], $result);
    }
}