FieldInputValueNormalizerTraitTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Core\Field;

use Drupal\Core\Field\FieldInputValueNormalizerTrait;
use Drupal\Tests\UnitTestCase;

/**
 * @coversDefaultClass \Drupal\Core\Field\FieldInputValueNormalizerTrait
 * @group Field
 */
class FieldInputValueNormalizerTraitTest extends UnitTestCase {
  use FieldInputValueNormalizerTrait;
  
  /**
   * @dataProvider keyValueByDeltaTestCases
   * @covers ::normalizeValue
   */
  public function testKeyValueByDelta($input_value, $expected_value, $main_property_name = 'value') : void {
    $this->assertEquals($expected_value, $this->normalizeValue($input_value, $main_property_name));
  }
  
  /**
   * Provides test cases for ::testKeyValueByDelta.
   */
  public static function keyValueByDeltaTestCases() {
    return [
      'Integer' => [
        1,
        [
          [
            'value' => 1,
          ],
        ],
      ],
      'Falsey integer' => [
        0,
        [
          [
            'value' => 0,
          ],
        ],
      ],
      'String' => [
        'foo',
        [
          [
            'value' => 'foo',
          ],
        ],
      ],
      'Empty string' => [
        '',
        [
          [
            'value' => '',
          ],
        ],
      ],
      'Null' => [
        NULL,
        [],
      ],
      'Empty field value' => [
        [],
        [],
      ],
      'Single delta' => [
        [
          'value' => 'foo',
        ],
        [
          [
            'value' => 'foo',
          ],
        ],
      ],
      'Keyed delta' => [
        [
          [
            'value' => 'foo',
          ],
        ],
        [
          [
            'value' => 'foo',
          ],
        ],
      ],
      'Multiple keyed deltas' => [
        [
          [
            'value' => 'foo',
          ],
          [
            'value' => 'bar',
          ],
        ],
        [
          [
            'value' => 'foo',
          ],
          [
            'value' => 'bar',
          ],
        ],
      ],
      'No main property with keyed delta' => [
        [
          [
            'foo' => 'bar',
          ],
        ],
        [
          [
            'foo' => 'bar',
          ],
        ],
        NULL,
      ],
      'No main property with single delta' => [
        [
          'foo' => 'bar',
        ],
        [
          [
            'foo' => 'bar',
          ],
        ],
        NULL,
      ],
      'No main property with empty array' => [
        [],
        [],
        NULL,
      ],
    ];
  }
  
  /**
   * @covers ::normalizeValue
   */
  public function testScalarWithNoMainProperty() : void {
    $this->expectException(\InvalidArgumentException::class);
    $this->expectExceptionMessage('A main property is required when normalizing scalar field values.');
    $value = 'foo';
    $this->normalizeValue($value, NULL);
  }
  
  /**
   * @covers ::normalizeValue
   */
  public function testKeyValueByDeltaUndefinedVariables() : void {
    $this->assertEquals([], $this->normalizeValue($undefined_variable, 'value'));
    $this->assertEquals([], $this->normalizeValue($undefined_variable['undefined_key'], 'value'));
  }

}