SlotDiffRendererTest.php

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<?php
use Wikimedia\Assert\ParameterTypeException;
use Wikimedia\TestingAccessWrapper;
 
class SlotDiffRendererTest extends \PHPUnit\Framework\TestCase {
 
    public function testNormalizeContents(
        $oldContent, $newContent, $allowedClasses,
        $expectedOldContent, $expectedNewContent, $expectedExceptionClass
    ) {
        $slotDiffRenderer = $this->getMockBuilder( SlotDiffRenderer::class )
            ->getMock();
        try {
            // __call needs help deciding which parameter to take by reference
            call_user_func_array( [ TestingAccessWrapper::newFromObject( $slotDiffRenderer ),
                'normalizeContents' ], [ &$oldContent, &$newContent, $allowedClasses ] );
            $this->assertEquals( $expectedOldContent, $oldContent );
            $this->assertEquals( $expectedNewContent, $newContent );
        } catch ( Exception $e ) {
            if ( !$expectedExceptionClass ) {
                throw $e;
            }
            $this->assertInstanceOf( $expectedExceptionClass, $e );
        }
    }
 
    public function provideNormalizeContents() {
        return [
            'both null' => [ null, null, null, null, null, InvalidArgumentException::class ],
            'left null' => [
                null, new WikitextContent( 'abc' ), null,
                new WikitextContent( '' ), new WikitextContent( 'abc' ), null,
            ],
            'right null' => [
                new WikitextContent( 'def' ), null, null,
                new WikitextContent( 'def' ), new WikitextContent( '' ), null,
            ],
            'type filter' => [
                new WikitextContent( 'abc' ), new WikitextContent( 'def' ), WikitextContent::class,
                new WikitextContent( 'abc' ), new WikitextContent( 'def' ), null,
            ],
            'type filter (subclass)' => [
                new WikitextContent( 'abc' ), new WikitextContent( 'def' ), TextContent::class,
                new WikitextContent( 'abc' ), new WikitextContent( 'def' ), null,
            ],
            'type filter (null)' => [
                new WikitextContent( 'abc' ), null, TextContent::class,
                new WikitextContent( 'abc' ), new WikitextContent( '' ), null,
            ],
            'type filter failure (left)' => [
                new TextContent( 'abc' ), new WikitextContent( 'def' ), WikitextContent::class,
                null, null, ParameterTypeException::class,
            ],
            'type filter failure (right)' => [
                new WikitextContent( 'abc' ), new TextContent( 'def' ), WikitextContent::class,
                null, null, ParameterTypeException::class,
            ],
            'type filter (array syntax)' => [
                new WikitextContent( 'abc' ), new JsonContent( 'def' ),
                [ JsonContent::class, WikitextContent::class ],
                new WikitextContent( 'abc' ), new JsonContent( 'def' ), null,
            ],
            'type filter failure (array syntax)' => [
                new WikitextContent( 'abc' ), new CssContent( 'def' ),
                [ JsonContent::class, WikitextContent::class ],
                null, null, ParameterTypeException::class,
            ],
        ];
    }
 
}