assertEquals($expected, $this->renderObjectWithTwig($variable));
}
/**
* Provide test examples.
*/
public function providerTestMarkupInterfaceEmpty() {
return [
// @codingStandardsIgnoreStart
// The first argument to \Drupal\Core\StringTranslation\TranslatableMarkup
// is not supposed to be an empty string.
'empty TranslatableMarkup' => ['', new TranslatableMarkup('')],
// @codingStandardsIgnoreEnd
'non-empty TranslatableMarkup' => ['test', new TranslatableMarkup('test')],
'empty FormattableMarkup' => ['', new FormattableMarkup('', ['@foo' => 'bar'])],
'non-empty FormattableMarkup' => ['bar', new FormattableMarkup('@foo', ['@foo' => 'bar'])],
'non-empty Markup' => ['test', Markup::create('test')],
'empty GeneratedLink' => ['', new GeneratedLink()],
'non-empty GeneratedLink' => ['test', (new GeneratedLink())->setGeneratedLink('test')],
// Test objects that do not implement \Countable.
'empty SafeMarkupTestMarkup' => ['', SafeMarkupTestMarkup::create('')],
'non-empty SafeMarkupTestMarkup' => ['test', SafeMarkupTestMarkup::create('test')],
];
}
/**
* Tests behaviour if a string is translated to become an empty string.
*/
public function testEmptyTranslation() {
$settings = Settings::getAll();
$settings['locale_custom_strings_en'] = ['' => ['test' => '']];
// Recreate the settings static.
new Settings($settings);
$variable = new TranslatableMarkup('test');
$this->assertEquals('', $this->renderObjectWithTwig($variable));
$variable = new TranslatableMarkup('test', [], ['langcode' => 'de']);
$this->assertEquals('test', $this->renderObjectWithTwig($variable));
}
/**
* @return \Drupal\Component\Render\MarkupInterface
* The rendered HTML.
*/
protected function renderObjectWithTwig($variable) {
/** @var \Drupal\Core\Render\RendererInterface $renderer */
$renderer = \Drupal::service('renderer');
$context = new RenderContext();
return $renderer->executeInRenderContext($context, function () use ($renderer, $variable) {
$elements = [
'#type' => 'inline_template',
'#template' => '{%- if variable is not empty -%}{{ variable }}{%- endif -%}',
'#context' => ['variable' => $variable],
];
return $renderer->render($elements);
});
}
}
/**
* Implements MarkupInterface without implementing \Countable
*/
class SafeMarkupTestMarkup implements MarkupInterface {
use MarkupTrait;
/**
* Overrides MarkupTrait::create() to allow creation with empty strings.
*/
public static function create($string) {
$object = new static();
$object->string = $string;
return $object;
}
}