DeferredStringifierTest.php

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<?php
 
class DeferredStringifierTest extends PHPUnit\Framework\TestCase {
 
    use MediaWikiCoversValidator;
 
    public function testToString( $params, $expected ) {
        $class = new ReflectionClass( DeferredStringifier::class );
        $ds = $class->newInstanceArgs( $params );
        $this->assertEquals( $expected, (string)$ds );
    }
 
    public static function provideToString() {
        return [
            // No args
            [
                [
                    function () {
                        return 'foo';
                    }
                ],
                'foo'
            ],
            // Has args
            [
                [
                    function ( $i ) {
                        return $i;
                    },
                    'bar'
                ],
                'bar'
            ],
        ];
    }
 
    public function testCallbackNotCalled() {
        $ds = new DeferredStringifier( function () {
            throw new Exception( 'This should not be reached!' );
        } );
        // No exception was thrown
        $this->assertTrue( true );
    }
}