public function TypedDataTest::testTypedDataLists in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/KernelTests/Core/TypedData/TypedDataTest.php \Drupal\KernelTests\Core\TypedData\TypedDataTest::testTypedDataLists()
2. 10 core/tests/Drupal/KernelTests/Core/TypedData/TypedDataTest.php \Drupal\KernelTests\Core\TypedData\TypedDataTest::testTypedDataLists()

Tests using typed data lists.

File

core/tests/Drupal/KernelTests/Core/TypedData/TypedDataTest.php, line 359

Class

TypedDataTest

Tests the functionality of all core data types.

Namespace

Drupal\KernelTests\Core\TypedData

Code

public function testTypedDataLists() {

  // Test working with an existing list of strings.
  $value = [
    'one',
    'two',
    'three',
  ];
  $typed_data = $this
    ->createTypedData(ListDataDefinition::create('string'), $value);
  $this
    ->assertEqual($typed_data
    ->getValue(), $value, 'List value has been set.');

  // Test iterating.
  $count = 0;
  foreach ($typed_data as $item) {
    $this
      ->assertInstanceOf(TypedDataInterface::class, $item);
    $count++;
  }
  $this
    ->assertEqual($count, 3);

  // Test getting the string representation.
  $this
    ->assertEqual($typed_data
    ->getString(), 'one, two, three');
  $typed_data[1] = '';
  $this
    ->assertEqual($typed_data
    ->getString(), 'one, three');

  // Test using array access.
  $this
    ->assertEqual($typed_data[0]
    ->getValue(), 'one');
  $typed_data[] = 'four';
  $this
    ->assertEqual($typed_data[3]
    ->getValue(), 'four');
  $this
    ->assertEqual($typed_data
    ->count(), 4);
  $this
    ->assertTrue(isset($typed_data[0]));
  $this
    ->assertTrue(!isset($typed_data[6]));

  // Test isEmpty and cloning.
  $this
    ->assertFalse($typed_data
    ->isEmpty());
  $clone = clone $typed_data;
  $this
    ->assertTrue($typed_data
    ->getValue() === $clone
    ->getValue());
  $this
    ->assertTrue($typed_data[0] !== $clone[0]);
  $clone
    ->setValue([]);
  $this
    ->assertTrue($clone
    ->isEmpty());

  // Make sure that resetting the value using NULL results in an empty array.
  $clone
    ->setValue([]);
  $typed_data
    ->setValue(NULL);
  $this
    ->assertIdentical($typed_data
    ->getValue(), []);
  $this
    ->assertIdentical($clone
    ->getValue(), []);

  // Test dealing with NULL items.
  $typed_data[] = NULL;
  $this
    ->assertTrue($typed_data
    ->isEmpty());
  $this
    ->assertCount(1, $typed_data);
  $typed_data[] = '';
  $this
    ->assertFalse($typed_data
    ->isEmpty());
  $this
    ->assertCount(2, $typed_data);
  $typed_data[] = 'three';
  $this
    ->assertFalse($typed_data
    ->isEmpty());
  $this
    ->assertCount(3, $typed_data);
  $this
    ->assertEqual($typed_data
    ->getValue(), [
    NULL,
    '',
    'three',
  ]);

  // Test unsetting.
  unset($typed_data[1]);
  $this
    ->assertCount(2, $typed_data);

  // Check that items were shifted.
  $this
    ->assertEqual($typed_data[1]
    ->getValue(), 'three');

  // Getting a not set list item returns NULL, and does not create a new item.
  $this
    ->assertNull($typed_data[2]);
  $this
    ->assertCount(2, $typed_data);

  // Test setting the list with less values.
  $typed_data
    ->setValue([
    'one',
  ]);
  $this
    ->assertEqual($typed_data
    ->count(), 1);

  // Test setting invalid values.
  try {
    $typed_data
      ->setValue('string');
    $this
      ->fail('No exception has been thrown when setting an invalid value.');
  } catch (\Exception $e) {

    // Expected exception; just continue testing.
  }
}