assertSame($expected, (string) $this->renderObjectWithTwig($variable));
}
/**
* Provide test examples.
*/
public static function providerTestMarkupInterfaceEmpty(): array {
return [
// The first argument to \Drupal\Core\StringTranslation\TranslatableMarkup
// is not supposed to be an empty string.
// phpcs:ignore Drupal.Semantics.FunctionT.EmptyString
'empty TranslatableMarkup' => ['', new TranslatableMarkup('')],
'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 behavior if a string is translated to become an empty string.
*/
public function testEmptyTranslation(): void {
$settings = Settings::getAll();
$settings['locale_custom_strings_en'] = ['' => ['test' => '']];
// Recreate the settings static.
new Settings($settings);
$variable = new TranslatableMarkup('test');
$this->assertEquals('', (string) $this->renderObjectWithTwig($variable));
$variable = new TranslatableMarkup('test', [], ['langcode' => 'de']);
$this->assertEquals('test', (string) $this->renderObjectWithTwig($variable));
}
/**
* Renders a variable using a Twig inline template.
*
* @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): static {
$object = new static();
$object->string = $string;
return $object;
}
}