function FilterKernelTest::testAlignFilter

Tests the align filter.

File

core/modules/filter/tests/src/Kernel/FilterKernelTest.php, line 53

Class

FilterKernelTest

Tests Filter module filters individually.

Namespace

Code

public function testAlignFilter() : void {
  $filter = $this->filters['filter_align'];
  $test = function ($input) use ($filter) {
    return $filter->process($input, 'und');
  };
  // No data-align attribute.
  $input = '<img src="llama.jpg" />';
  $expected = $input;
  $this->assertSame($expected, $test($input)->getProcessedText());
  // Data-align attribute: all 3 allowed values.
  $input = '<img src="llama.jpg" data-align="left" />';
  $expected = '<img src="llama.jpg" class="align-left">';
  $this->assertSame($expected, $test($input)->getProcessedText());
  $input = '<img src="llama.jpg" data-align="center" />';
  $expected = '<img src="llama.jpg" class="align-center">';
  $this->assertSame($expected, $test($input)->getProcessedText());
  $input = '<img src="llama.jpg" data-align="right" />';
  $expected = '<img src="llama.jpg" class="align-right">';
  $this->assertSame($expected, $test($input)->getProcessedText());
  // Data-align attribute: a disallowed value.
  $input = '<img src="llama.jpg" data-align="left foobar" />';
  $expected = '<img src="llama.jpg">';
  $this->assertSame($expected, $test($input)->getProcessedText());
  // Empty data-align attribute.
  $input = '<img src="llama.jpg" data-align="" />';
  $expected = '<img src="llama.jpg">';
  $this->assertSame($expected, $test($input)->getProcessedText());
  // Ensure the filter also works with uncommon yet valid attribute quoting.
  $input = '<img src=llama.jpg data-align=right />';
  $expected = '<img src="llama.jpg" class="align-right">';
  $output = $test($input);
  $this->assertSame($expected, $output->getProcessedText());
  // Security test: attempt to inject an additional class.
  $input = '<img src="llama.jpg" data-align="center another-class-here" />';
  $expected = '<img src="llama.jpg">';
  $output = $test($input);
  $this->assertSame($expected, $output->getProcessedText());
  // Security test: attempt an XSS.
  $input = '<img src="llama.jpg" data-align="center \'onclick=\'alert(foo);" />';
  $expected = '<img src="llama.jpg">';
  $output = $test($input);
  $this->assertSame($expected, $output->getProcessedText());
}