ForumNotificationCacheTest.php

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<?php

declare(strict_types=1);

use PHPUnit\Framework\TestCase;

class ForumNotificationCacheTest extends TestCase
{
    public function testExceptionIsRaisedWhenTryingToRetrieveItemNotCachedYet(): void
    {
        $this->expectException(InvalidArgumentException::class);

        $cache = new ilForumNotificationCache();
        $cache->fetch('item');
    }

    public function testCacheItemResultsInCacheHit(): void
    {
        $cache = new ilForumNotificationCache();
        $cache->store('item', 'ilias');

        $this->assertTrue($cache->exists('item'));
        $this->assertSame('ilias', $cache->fetch('item'));
    }

    public static function nonScalarValuesProvider(): array
    {
        return [
            'Array Type' => [[4]],
            'Object Type' => [new stdClass()],
            'Ressource Type' => [fopen('php://temp', 'rb')]
        ];
    }

    public function testExceptionIsRaisedWhenKeyShouldBeBuiltWithNonScalarValues($nonScalarValue): void
    {
        $this->expectException(InvalidArgumentException::class);

        $cache = new ilForumNotificationCache();
        $cache->createKeyByValues([$nonScalarValue, $nonScalarValue]);
    }

    public static function scalarValuesAndNullProvider(): array
    {
        return [
            'Float Type' => [4.0],
            'String Type' => ['4'],
            'Boolean Type' => [false],
            'Integer Type' => [4],
            'Null Type' => [null],
        ];
    }

    public function testCacheKeyCouldBeGeneratedByArray($scalarValue): void
    {
        $cache = new ilForumNotificationCache();
        $key = $cache->createKeyByValues([$scalarValue, $scalarValue]);

        $this->assertNotEmpty($key);
        $this->assertSame(32, strlen($key));
    }
}