--- /dev/null
+<?php
+
+namespace Drupal\Tests\taxonomy\Functional;
+
+use Drupal\Core\Datetime\DrupalDateTime;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\taxonomy\Entity\Vocabulary;
+
+/**
+ * Posts an article with a taxonomy term and a date prior to 1970.
+ *
+ * @group taxonomy
+ */
+class EarlyDateTest extends TaxonomyTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['node', 'datetime'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ // Create a tags vocabulary for the 'article' content type.
+ $vocabulary = Vocabulary::create([
+ 'name' => 'Tags',
+ 'vid' => 'tags',
+ ]);
+ $vocabulary->save();
+ $field_name = 'field_' . $vocabulary->id();
+
+ $handler_settings = [
+ 'target_bundles' => [
+ $vocabulary->id() => $vocabulary->id(),
+ ],
+ 'auto_create' => TRUE,
+ ];
+ $this->createEntityReferenceField('node', 'article', $field_name, 'Tags', 'taxonomy_term', 'default', $handler_settings, FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);
+
+ entity_get_form_display('node', 'article', 'default')
+ ->setComponent($field_name, [
+ 'type' => 'entity_reference_autocomplete_tags',
+ ])
+ ->save();
+
+ $this->drupalLogin($this->drupalCreateUser(['administer taxonomy', 'administer nodes', 'bypass node access']));
+ }
+
+ /**
+ * Test taxonomy functionality with nodes prior to 1970.
+ */
+ public function testTaxonomyEarlyDateNode() {
+ // Posts an article with a taxonomy term and a date prior to 1970.
+ $date = new DrupalDateTime('1969-01-01 00:00:00');
+ $edit = [];
+ $edit['title[0][value]'] = $this->randomMachineName();
+ $edit['created[0][value][date]'] = $date->format('Y-m-d');
+ $edit['created[0][value][time]'] = $date->format('H:i:s');
+ $edit['body[0][value]'] = $this->randomMachineName();
+ $edit['field_tags[target_id]'] = $this->randomMachineName();
+ $this->drupalPostForm('node/add/article', $edit, t('Save'));
+ // Checks that the node has been saved.
+ $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
+ $this->assertEqual($node->getCreatedTime(), $date->getTimestamp(), 'Legacy node was saved with the right date.');
+ }
+
+}