FieldInputValueNormalizerTraitTest.php

<?php

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') {
        $this->assertEquals($expected_value, $this->normalizeValue($input_value, $main_property_name));
    }
    
    /**
     * Provides test cases for ::testKeyValueByDelta.
     */
    public 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() {
        $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() {
        $this->assertEquals([], $this->normalizeValue($undefined_variable, 'value'));
        $this->assertEquals([], $this->normalizeValue($undefined_variable['undefined_key'], 'value'));
    }

}