--- /dev/null
+<?php
+
+namespace Drupal\Tests\content_translation\Kernel;
+
+use Drupal\content_translation\FieldTranslationSynchronizer;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests the field synchronization logic.
+ *
+ * @group content_translation
+ */
+class ContentTranslationSyncUnitTest extends KernelTestBase {
+
+ /**
+ * The synchronizer class to be tested.
+ *
+ * @var \Drupal\content_translation\FieldTranslationSynchronizer
+ */
+ protected $synchronizer;
+
+ /**
+ * The columns to be synchronized.
+ *
+ * @var array
+ */
+ protected $synchronized;
+
+ /**
+ * All the field columns.
+ *
+ * @var array
+ */
+ protected $columns;
+
+ /**
+ * The available language codes.
+ *
+ * @var array
+ */
+ protected $langcodes;
+
+ /**
+ * The field cardinality.
+ *
+ * @var int
+ */
+ protected $cardinality;
+
+ /**
+ * The unchanged field values.
+ *
+ * @var array
+ */
+ protected $unchangedFieldValues;
+
+ public static $modules = ['language', 'content_translation'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ $this->synchronizer = new FieldTranslationSynchronizer($this->container->get('entity.manager'));
+ $this->synchronized = ['sync1', 'sync2'];
+ $this->columns = array_merge($this->synchronized, ['var1', 'var2']);
+ $this->langcodes = ['en', 'it', 'fr', 'de', 'es'];
+ $this->cardinality = 4;
+ $this->unchangedFieldValues = [];
+
+ // Set up an initial set of values in the correct state, that is with
+ // "synchronized" values being equal.
+ foreach ($this->langcodes as $langcode) {
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ foreach ($this->columns as $column) {
+ $sync = in_array($column, $this->synchronized) && $langcode != $this->langcodes[0];
+ $value = $sync ? $this->unchangedFieldValues[$this->langcodes[0]][$delta][$column] : $langcode . '-' . $delta . '-' . $column;
+ $this->unchangedFieldValues[$langcode][$delta][$column] = $value;
+ }
+ }
+ }
+ }
+
+ /**
+ * Tests the field synchronization algorithm.
+ */
+ public function testFieldSync() {
+ // Add a new item to the source items and check that its added to all the
+ // translations.
+ $sync_langcode = $this->langcodes[2];
+ $unchanged_items = $this->unchangedFieldValues[$sync_langcode];
+ $field_values = $this->unchangedFieldValues;
+ $item = [];
+ foreach ($this->columns as $column) {
+ $item[$column] = $this->randomMachineName();
+ }
+ $field_values[$sync_langcode][] = $item;
+ $this->synchronizer->synchronizeItems($field_values, $unchanged_items, $sync_langcode, $this->langcodes, $this->synchronized);
+ $result = TRUE;
+ foreach ($this->unchangedFieldValues as $langcode => $items) {
+ // Check that the old values are still in place.
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ foreach ($this->columns as $column) {
+ $result = $result && ($this->unchangedFieldValues[$langcode][$delta][$column] == $field_values[$langcode][$delta][$column]);
+ }
+ }
+ // Check that the new item is available in all languages.
+ foreach ($this->columns as $column) {
+ $result = $result && ($field_values[$langcode][$delta][$column] == $field_values[$sync_langcode][$delta][$column]);
+ }
+ }
+ $this->assertTrue($result, 'A new item has been correctly synchronized.');
+
+ // Remove an item from the source items and check that its removed from all
+ // the translations.
+ $sync_langcode = $this->langcodes[1];
+ $unchanged_items = $this->unchangedFieldValues[$sync_langcode];
+ $field_values = $this->unchangedFieldValues;
+ $sync_delta = mt_rand(0, count($field_values[$sync_langcode]) - 1);
+ unset($field_values[$sync_langcode][$sync_delta]);
+ // Renumber deltas to start from 0.
+ $field_values[$sync_langcode] = array_values($field_values[$sync_langcode]);
+ $this->synchronizer->synchronizeItems($field_values, $unchanged_items, $sync_langcode, $this->langcodes, $this->synchronized);
+ $result = TRUE;
+ foreach ($this->unchangedFieldValues as $langcode => $items) {
+ $new_delta = 0;
+ // Check that the old values are still in place.
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ // Skip the removed item.
+ if ($delta != $sync_delta) {
+ foreach ($this->columns as $column) {
+ $result = $result && ($this->unchangedFieldValues[$langcode][$delta][$column] == $field_values[$langcode][$new_delta][$column]);
+ }
+ $new_delta++;
+ }
+ }
+ }
+ $this->assertTrue($result, 'A removed item has been correctly synchronized.');
+
+ // Move the items around in the source items and check that they are moved
+ // in all the translations.
+ $sync_langcode = $this->langcodes[3];
+ $unchanged_items = $this->unchangedFieldValues[$sync_langcode];
+ $field_values = $this->unchangedFieldValues;
+ $field_values[$sync_langcode] = [];
+ // Scramble the items.
+ foreach ($unchanged_items as $delta => $item) {
+ $new_delta = ($delta + 1) % $this->cardinality;
+ $field_values[$sync_langcode][$new_delta] = $item;
+ }
+ // Renumber deltas to start from 0.
+ ksort($field_values[$sync_langcode]);
+ $this->synchronizer->synchronizeItems($field_values, $unchanged_items, $sync_langcode, $this->langcodes, $this->synchronized);
+ $result = TRUE;
+ foreach ($field_values as $langcode => $items) {
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ foreach ($this->columns as $column) {
+ $value = $field_values[$langcode][$delta][$column];
+ if (in_array($column, $this->synchronized)) {
+ // If we are dealing with a synchronize column the current value is
+ // supposed to be the same of the source items.
+ $result = $result && $field_values[$sync_langcode][$delta][$column] == $value;
+ }
+ else {
+ // Otherwise the values should be unchanged.
+ $old_delta = ($delta > 0 ? $delta : $this->cardinality) - 1;
+ $result = $result && $this->unchangedFieldValues[$langcode][$old_delta][$column] == $value;
+ }
+ }
+ }
+ }
+ $this->assertTrue($result, 'Scrambled items have been correctly synchronized.');
+ }
+
+ /**
+ * Tests that items holding the same values are correctly synchronized.
+ */
+ public function testMultipleSyncedValues() {
+ $sync_langcode = $this->langcodes[1];
+ $unchanged_items = $this->unchangedFieldValues[$sync_langcode];
+
+ // Determine whether the unchanged values should be altered depending on
+ // their delta.
+ $delta_callbacks = [
+ // Continuous field values: all values are equal.
+ function($delta) { return TRUE; },
+ // Alternated field values: only the even ones are equal.
+ function($delta) { return $delta % 2 !== 0; },
+ // Sparse field values: only the "middle" ones are equal.
+ function($delta) { return $delta === 1 || $delta === 2; },
+ // Sparse field values: only the "extreme" ones are equal.
+ function($delta) { return $delta === 0 || $delta === 3; },
+ ];
+
+ foreach ($delta_callbacks as $delta_callback) {
+ $field_values = $this->unchangedFieldValues;
+
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ if ($delta_callback($delta)) {
+ foreach ($this->columns as $column) {
+ if (in_array($column, $this->synchronized)) {
+ $field_values[$sync_langcode][$delta][$column] = $field_values[$sync_langcode][0][$column];
+ }
+ }
+ }
+ }
+
+ $changed_items = $field_values[$sync_langcode];
+ $this->synchronizer->synchronizeItems($field_values, $unchanged_items, $sync_langcode, $this->langcodes, $this->synchronized);
+
+ foreach ($this->unchangedFieldValues as $langcode => $unchanged_items) {
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ foreach ($this->columns as $column) {
+ // The first item is always unchanged hence it is retained by the
+ // synchronization process. The other ones are retained or synced
+ // depending on the logic implemented by the delta callback and
+ // whether it is a sync column or not.
+ $value = $delta > 0 && $delta_callback($delta) && in_array($column, $this->synchronized) ? $changed_items[0][$column] : $unchanged_items[$delta][$column];
+ $this->assertEqual($field_values[$langcode][$delta][$column], $value, "Item $delta column $column for langcode $langcode synced correctly");
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Tests that one change in a synchronized column triggers a change in all columns.
+ */
+ public function testDifferingSyncedColumns() {
+ $sync_langcode = $this->langcodes[2];
+ $unchanged_items = $this->unchangedFieldValues[$sync_langcode];
+ $field_values = $this->unchangedFieldValues;
+
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ $index = ($delta % 2) + 1;
+ $field_values[$sync_langcode][$delta]['sync' . $index] .= '-updated';
+ }
+
+ $changed_items = $field_values[$sync_langcode];
+ $this->synchronizer->synchronizeItems($field_values, $unchanged_items, $sync_langcode, $this->langcodes, $this->synchronized);
+
+ foreach ($this->unchangedFieldValues as $langcode => $unchanged_items) {
+ for ($delta = 0; $delta < $this->cardinality; $delta++) {
+ foreach ($this->columns as $column) {
+ // If the column is synchronized, the value should have been synced,
+ // for unsychronized columns, the value must not change.
+ $expected_value = in_array($column, $this->synchronized) ? $changed_items[$delta][$column] : $this->unchangedFieldValues[$langcode][$delta][$column];
+ $this->assertEqual($field_values[$langcode][$delta][$column], $expected_value, "Differing Item $delta column $column for langcode $langcode synced correctly");
+ }
+ }
+ }
+ }
+
+}
projects / yaffs-website / blobdiff