--- /dev/null
+<?php
+
+namespace Drupal\Tests\views\Unit\Plugin\area;
+
+use Drupal\Core\Routing\RouteProviderInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Tests\UnitTestCase;
+use Drupal\views\Entity\View;
+use Drupal\views\Plugin\views\pager\PagerPluginBase;
+use Drupal\views\ViewExecutable;
+use Drupal\views\Plugin\views\area\Result;
+use Drupal\views\ViewsData;
+use Prophecy\Argument;
+
+/**
+ * @coversDefaultClass \Drupal\views\Plugin\views\area\Result
+ * @group views
+ */
+class ResultTest extends UnitTestCase {
+
+ /**
+ * The view executable object.
+ *
+ * @var \Drupal\views\ViewExecutable
+ */
+ protected $view;
+
+ /**
+ * The Result handler.
+ *
+ * @var \Drupal\views\Plugin\views\area\Result
+ */
+ protected $resultHandler;
+
+ protected function setUp() {
+ parent::setUp();
+
+ $storage = $this->prophesize(View::class);
+ $storage->label()->willReturn('ResultTest');
+ $storage->set(Argument::cetera())->willReturn(NULL);
+
+ $user = $this->prophesize(AccountInterface::class)->reveal();
+ $views_data = $this->prophesize(ViewsData::class)->reveal();
+ $route_provider = $this->prophesize(RouteProviderInterface::class)->reveal();
+ $this->view = new ViewExecutable($storage->reveal(), $user, $views_data, $route_provider);
+
+ $this->resultHandler = new Result([], 'result', []);
+ $this->resultHandler->view = $this->view;
+ }
+
+ /**
+ * Tests the query method.
+ */
+ public function testQuery() {
+ $this->assertNull($this->view->get_total_rows);
+ // @total should set get_total_rows.
+ $this->resultHandler->options['content'] = '@total';
+ $this->resultHandler->query();
+ $this->assertTrue($this->view->get_total_rows);
+ // A different token should not.
+ $this->view->get_total_rows = NULL;
+ $this->resultHandler->options['content'] = '@current_page';
+ $this->resultHandler->query();
+ $this->assertNull($this->view->get_total_rows);
+ }
+
+ /**
+ * Tests the rendered output of the Result area handler.
+ *
+ * @param string $content
+ * The content to use when rendering the handler.
+ * @param string $expected
+ * The expected content string.
+ * @param int $items_per_page
+ * The items per page of the configuration.
+ *
+ * @dataProvider providerTestResultArea
+ */
+ public function testResultArea($content, $expected, $items_per_page = 0) {
+ $this->setupViewPager($items_per_page);
+ $this->resultHandler->options['content'] = $content;
+ $this->assertEquals(['#markup' => $expected], $this->resultHandler->render());
+ }
+
+ /**
+ * Data provider for testResultArea.
+ *
+ * @return array
+ */
+ public function providerTestResultArea() {
+ return [
+ ['@label', 'ResultTest'],
+ ['@start', '1'],
+ ['@start', '1', 1],
+ ['@end', '100'],
+ ['@end', '1', 1],
+ ['@total', '100'],
+ ['@total', '100', 1],
+ ['@per_page', '0'],
+ ['@per_page', '1', 1],
+ ['@current_page', '1'],
+ ['@current_page', '1', 1],
+ ['@current_record_count', '100'],
+ ['@current_record_count', '1', 1],
+ ['@page_count', '1'],
+ ['@page_count', '100', 1],
+ ['@start | @end | @total', '1 | 100 | 100'],
+ ['@start | @end | @total', '1 | 1 | 100', 1],
+ ];
+ }
+
+ /**
+ * Sets up a mock pager on the view executable object.
+ *
+ * @param int $items_per_page
+ * The value to return from getItemsPerPage().
+ */
+ protected function setupViewPager($items_per_page = 0) {
+ $pager = $this->prophesize(PagerPluginBase::class);
+ $pager->getItemsPerPage()
+ ->willReturn($items_per_page)
+ ->shouldBeCalledTimes(1);
+ $pager->getCurrentPage()
+ ->willReturn(0)
+ ->shouldBeCalledTimes(1);
+
+ $this->view->pager = $pager->reveal();
+ $this->view->style_plugin = new \stdClass();
+ $this->view->total_rows = 100;
+ $this->view->result = [1, 2, 3, 4, 5];
+ }
+
+}