--- /dev/null
+<?php
+
+/**
+ * @file
+ * Provides views data and hooks for views_test_data module.
+ */
+
+use Drupal\views\ViewExecutable;
+use Drupal\views\Analyzer;
+
+/**
+ * Implements hook_views_data().
+ */
+function views_test_data_views_data() {
+ $state = \Drupal::service('state');
+ $state->set('views_hook_test_views_data', TRUE);
+ // We use a state variable to keep track of how many times this function is
+ // called so we can assert that calls to
+ // \Drupal\views\ViewsData::delete() trigger a rebuild of views data.
+ if (!($count = $state->get('views_test_data_views_data_count'))) {
+ $count = 0;
+ }
+ $count++;
+ $state->set('views_test_data_views_data_count', $count);
+
+ return $state->get('views_test_data_views_data', []);
+}
+
+/**
+ * Implements hook_views_data_alter().
+ */
+function views_test_data_views_data_alter() {
+ \Drupal::state()->set('views_hook_test_views_data_alter', TRUE);
+}
+
+/**
+ * Implements hook_views_analyze().
+ */
+function views_test_data_views_analyze(ViewExecutable $view) {
+ \Drupal::state()->set('views_hook_test_views_analyze', TRUE);
+
+ $ret = [];
+
+ $ret[] = Analyzer::formatMessage(t('Test ok message'), 'ok');
+ $ret[] = Analyzer::formatMessage(t('Test warning message'), 'warning');
+ $ret[] = Analyzer::formatMessage(t('Test error message'), 'error');
+
+ return $ret;
+}
+
+/**
+ * Implements hook_views_invalidate_cache().
+ */
+function views_test_data_views_invalidate_cache() {
+ \Drupal::state()->set('views_hook_test_views_invalidate_cache', TRUE);
+}