Issue #1754264 by dawehner: Add a generic testcase for the style base.

lib/Drupal/views/Tests/Plugin/StyleTest.php

@@ -11,6 +11,8 @@
 
 /**
  * Tests some general style plugin related functionality.
+ *
+ * @see Drupal\views_test_data\Plugin\views\style\StyleTest.
  */
 class StyleTest extends StyleTestBase {
 
@@ -22,6 +24,41 @@ public static function getInfo() {
     );
   }
 
+  /**
+   * Tests the general renderering of styles.
+   */
+  public function testStyle() {
+    $view = $this->getView();
+    $view->display_handler->setOption('style_plugin', 'test_style');
+    $view->initDisplay();
+    $view->initStyle();
+    $this->assertTrue($view->style_plugin instanceof \Drupal\views_test_data\Plugin\views\style\StyleTest, 'Make sure the right style plugin class is loaded.');
+
+    $random_text = $this->randomName();
+    // Set some custom text to the output and make sure that this value is
+    // rendered.
+    $view->style_plugin->setOutput($random_text);
+    $output = $view->preview();
+    $this->assertTrue(strpos($output, $random_text) !== FALSE, 'Take sure that the rendering of the style plugin appears in the output of the view.');
+
+    // This run use the test row plugin and render with it.
+    $view = $this->getView();
+    $view->display_handler->setOption('style_plugin', 'test_style');
+    $view->display_handler->setOption('row_plugin', 'test_row');
+    $view->initDisplay();
+    $view->initStyle();
+    $view->style_plugin->setUsesRowPlugin(TRUE);
+    // Reinitialize the style as it supports row plugins now.
+    $view->style_plugin->init($view, $view->display[$view->current_display], array());
+    $this->assertTrue($view->style_plugin->row_plugin instanceof \Drupal\views_test_data\Plugin\views\row\RowTest, 'Make sure the right row plugin class is loaded.');
+
+    $random_text = $this->randomName();
+    $view->style_plugin->row_plugin->setOutput($random_text);
+
+    $output = $view->preview();
+    $this->assertTrue(strpos($output, $random_text) !== FALSE, 'Take sure that the rendering of the row plugin appears in the output of the view.');
+  }
+
   /**
    * Tests the grouping legacy features of styles.
    */

tests/views_test_data/lib/Drupal/views_test_data/Plugin/views/row/RowTest.php

+<?php
+
+/**
+ * @file
+ * Definition of Drupal\views_test_data\Plugin\views\row\RowTest.
+ */
+
+namespace Drupal\views_test_data\Plugin\views\row;
+
+use Drupal\Core\Annotation\Plugin;
+use Drupal\Core\Annotation\Translation;
+use Drupal\views\Plugin\views\row\RowPluginBase;
+
+/**
+ * Provides a general test row plugin.
+ *
+ * @ingroup views_row_plugins
+ *
+ * @Plugin(
+ *   id = "test_row",
+ *   title = @Translation("Test row plugin"),
+ *   help = @Translation("Provides a generic row test plugin."),
+ *   theme = "views_view_row_test",
+ *   type = "normal"
+ * )
+ */
+class RowTest extends RowPluginBase {
+
+  /**
+   * A string which will be output when the view is rendered.
+   *
+   * @var string
+   */
+  public $output;
+
+  /**
+   * Sets the output property.
+   *
+   * @param string $output
+   *   The string to output by this plugin.
+   */
+  public function setOutput($output) {
+    $this->output = $output;
+  }
+
+  /**
+   * Returns the output property.
+   *
+   * @return string
+   */
+  public function getOutput() {
+    return $this->output;
+  }
+
+  /**
+   * Overrides Drupal\views\Plugin\views\row\RowPluginBase::render()
+   */
+  public function render($row) {
+    return $this->getOutput();
+  }
+
+}

tests/views_test_data/lib/Drupal/views_test_data/Plugin/views/style/StyleTest.php

+<?php
+
+/**
+ * @file
+ * Definition of Drupal\views_test_data\Plugin\views\style\StyleTest.
+ */
+
+namespace Drupal\views_test_data\Plugin\views\style;
+
+use Drupal\Core\Annotation\Plugin;
+use Drupal\Core\Annotation\Translation;
+use Drupal\views\Plugin\views\style\StylePluginBase;
+
+/**
+ * Provides a general test style plugin.
+ *
+ * @ingroup views_style_plugins
+ *
+ * @Plugin(
+ *   id = "test_style",
+ *   title = @Translation("Test style plugin"),
+ *   help = @Translation("Provides a generic style test plugin."),
+ *   theme = "views_view_style_test",
+ *   type = "normal"
+ * )
+ */
+class StyleTest extends StylePluginBase {
+
+  /**
+   * A string which will be output when the view is rendered.
+   *
+   * @var string
+   */
+  public $output;
+
+  function usesRowPlugin() {
+    return parent::usesRowPlugin();
+  }
+
+  /**
+   * Sets the usesRowPlugin property.
+   *
+   * @param bool $status
+   *   TRUE if this style plugin should use rows.
+   */
+  public function setUsesRowPlugin($status) {
+    $this->usesRowPlugin = $status;
+  }
+
+  /**
+   * Sets the output property.
+   *
+   * @param string $output
+   *   The string to output by this plugin.
+   */
+  public function setOutput($output) {
+    $this->output = $output;
+  }
+
+  /**
+   * Returns the output property.
+   *
+   * @return string
+   */
+  public function getOutput() {
+    return $this->output;
+  }
+
+  /**
+   * Overrides Drupal\views\Plugin\views\style\StylePluginBase::render()
+   */
+  public function render() {
+    $output = '';
+    if (!$this->usesRowPlugin()) {
+      $output = $this->getOutput();
+    }
+    else {
+      foreach ($this->view->result as $index => $row) {
+        $this->view->row_index = $index;
+        $output .= $this->row_plugin->render($row) . "\n";
+      }
+    }
+
+    return $output;
+  }
+
+}