--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Batch;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests the content of the progress page.
+ *
+ * @group Batch
+ */
+class PageTest extends BrowserTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['batch_test'];
+
+ /**
+ * Tests that the batch API progress page uses the correct theme.
+ */
+ public function testBatchProgressPageTheme() {
+ // Make sure that the page which starts the batch (an administrative page)
+ // is using a different theme than would normally be used by the batch API.
+ $this->container->get('theme_handler')->install(['seven', 'bartik']);
+ $this->config('system.theme')
+ ->set('default', 'bartik')
+ ->set('admin', 'seven')
+ ->save();
+
+ // Log in as an administrator who can see the administrative theme.
+ $admin_user = $this->drupalCreateUser(['view the administration theme']);
+ $this->drupalLogin($admin_user);
+ // Visit an administrative page that runs a test batch, and check that the
+ // theme that was used during batch execution (which the batch callback
+ // function saved as a variable) matches the theme used on the
+ // administrative page.
+ $this->drupalGet('admin/batch-test/test-theme');
+ // The stack should contain the name of the theme used on the progress
+ // page.
+ $this->assertEqual(batch_test_stack(), ['seven'], 'A progressive batch correctly uses the theme of the page that started the batch.');
+ }
+
+ /**
+ * Tests that the batch API progress page shows the title correctly.
+ */
+ public function testBatchProgressPageTitle() {
+ // Visit an administrative page that runs a test batch, and check that the
+ // title shown during batch execution (which the batch callback function
+ // saved as a variable) matches the theme used on the administrative page.
+ $this->drupalGet('batch-test/test-title');
+ // The stack should contain the title shown on the progress page.
+ $this->assertEqual(batch_test_stack(), ['Batch Test'], 'The batch title is shown on the batch page.');
+ $this->assertText('Redirection successful.', 'Redirection after batch execution is correct.');
+ }
+
+ /**
+ * Tests that the progress messages are correct.
+ */
+ public function testBatchProgressMessages() {
+ // Go to the initial step only.
+ $this->maximumMetaRefreshCount = 0;
+ $this->drupalGet('batch-test/test-title');
+ $this->assertRaw('<div class="progress__description">Initializing.<br /> </div>', 'Initial progress message appears correctly.');
+ $this->assertNoRaw('&nbsp;', 'Initial progress message is not double escaped.');
+ // Now also go to the next step.
+ $this->maximumMetaRefreshCount = 1;
+ $this->drupalGet('batch-test/test-title');
+ $this->assertRaw('<div class="progress__description">Completed 1 of 1.</div>', 'Progress message for second step appears correctly.');
+ }
+
+}