--- /dev/null
+<?php
+
+namespace Drupal\views_ui\Tests;
+
+/**
+ * Tests that displays can be correctly overridden via the user interface.
+ *
+ * @group views_ui
+ */
+class OverrideDisplaysTest extends UITestBase {
+
+ protected function setUp() {
+ parent::setUp();
+
+ $this->drupalPlaceBlock('page_title_block');
+ }
+
+ /**
+ * Tests that displays can be overridden via the UI.
+ */
+ public function testOverrideDisplays() {
+ // Create a basic view that shows all content, with a page and a block
+ // display.
+ $view['label'] = $this->randomMachineName(16);
+ $view['id'] = strtolower($this->randomMachineName(16));
+ $view['page[create]'] = 1;
+ $view['page[path]'] = $this->randomMachineName(16);
+ $view['block[create]'] = 1;
+ $view_path = $view['page[path]'];
+ $this->drupalPostForm('admin/structure/views/add', $view, t('Save and edit'));
+
+ // Configure its title. Since the page and block both started off with the
+ // same (empty) title in the views wizard, we expect the wizard to have set
+ // things up so that they both inherit from the default display, and we
+ // therefore only need to change that to have it take effect for both.
+ $edit = [];
+ $edit['title'] = $original_title = $this->randomMachineName(16);
+ $edit['override[dropdown]'] = 'default';
+ $this->drupalPostForm("admin/structure/views/nojs/display/{$view['id']}/page_1/title", $edit, t('Apply'));
+ $this->drupalPostForm("admin/structure/views/view/{$view['id']}/edit/page_1", [], t('Save'));
+
+ // Add a node that will appear in the view, so that the block will actually
+ // be displayed.
+ $this->drupalCreateContentType(['type' => 'page']);
+ $this->drupalCreateNode();
+
+ // Make sure the title appears in the page.
+ $this->drupalGet($view_path);
+ $this->assertResponse(200);
+ $this->assertText($original_title);
+
+ // Confirm that the view block is available in the block administration UI.
+ $this->drupalGet('admin/structure/block/list/' . $this->config('system.theme')->get('default'));
+ $this->clickLinkPartialName('Place block');
+ $this->assertText($view['label']);
+
+ // Place the block.
+ $this->drupalPlaceBlock("views_block:{$view['id']}-block_1");
+
+ // Make sure the title appears in the block.
+ $this->drupalGet('');
+ $this->assertText($original_title);
+
+ // Change the title for the page display only, and make sure that the
+ // original title still appears on the page.
+ $edit = [];
+ $edit['title'] = $new_title = $this->randomMachineName(16);
+ $edit['override[dropdown]'] = 'page_1';
+ $this->drupalPostForm("admin/structure/views/nojs/display/{$view['id']}/page_1/title", $edit, t('Apply'));
+ $this->drupalPostForm("admin/structure/views/view/{$view['id']}/edit/page_1", [], t('Save'));
+ $this->drupalGet($view_path);
+ $this->assertResponse(200);
+ $this->assertText($new_title);
+ $this->assertText($original_title);
+ }
+
+ /**
+ * Tests that the wizard correctly sets up default and overridden displays.
+ */
+ public function testWizardMixedDefaultOverriddenDisplays() {
+ // Create a basic view with a page, block, and feed. Give the page and feed
+ // identical titles, but give the block a different one, so we expect the
+ // page and feed to inherit their titles from the default display, but the
+ // block to override it.
+ $view['label'] = $this->randomMachineName(16);
+ $view['id'] = strtolower($this->randomMachineName(16));
+ $view['page[create]'] = 1;
+ $view['page[title]'] = $this->randomMachineName(16);
+ $view['page[path]'] = $this->randomMachineName(16);
+ $view['page[feed]'] = 1;
+ $view['page[feed_properties][path]'] = $this->randomMachineName(16);
+ $view['block[create]'] = 1;
+ $view['block[title]'] = $this->randomMachineName(16);
+ $this->drupalPostForm('admin/structure/views/add', $view, t('Save and edit'));
+
+ // Add a node that will appear in the view, so that the block will actually
+ // be displayed.
+ $this->drupalCreateContentType(['type' => 'page']);
+ $this->drupalCreateNode();
+
+ // Make sure that the feed, page and block all start off with the correct
+ // titles.
+ $this->drupalGet($view['page[path]']);
+ $this->assertResponse(200);
+ $this->assertText($view['page[title]']);
+ $this->assertNoText($view['block[title]']);
+ $this->drupalGet($view['page[feed_properties][path]']);
+ $this->assertResponse(200);
+ $this->assertText($view['page[title]']);
+ $this->assertNoText($view['block[title]']);
+
+ // Confirm that the block is available in the block administration UI.
+ $this->drupalGet('admin/structure/block/list/' . $this->config('system.theme')->get('default'));
+ $this->clickLinkPartialName('Place block');
+ $this->assertText($view['label']);
+
+ // Put the block into the first sidebar region, and make sure it will not
+ // display on the view's page display (since we will be searching for the
+ // presence/absence of the view's title in both the page and the block).
+ $this->drupalPlaceBlock("views_block:{$view['id']}-block_1", [
+ 'visibility' => [
+ 'request_path' => [
+ 'pages' => '/' . $view['page[path]'],
+ 'negate' => TRUE,
+ ],
+ ],
+ ]);
+
+ $this->drupalGet('');
+ $this->assertText($view['block[title]']);
+ $this->assertNoText($view['page[title]']);
+
+ // Edit the page and change the title. This should automatically change
+ // the feed's title also, but not the block.
+ $edit = [];
+ $edit['title'] = $new_default_title = $this->randomMachineName(16);
+ $this->drupalPostForm("admin/structure/views/nojs/display/{$view['id']}/page_1/title", $edit, t('Apply'));
+ $this->drupalPostForm("admin/structure/views/view/{$view['id']}/edit/page_1", [], t('Save'));
+ $this->drupalGet($view['page[path]']);
+ $this->assertResponse(200);
+ $this->assertText($new_default_title);
+ $this->assertNoText($view['page[title]']);
+ $this->assertNoText($view['block[title]']);
+ $this->drupalGet($view['page[feed_properties][path]']);
+ $this->assertResponse(200);
+ $this->assertText($new_default_title);
+ $this->assertNoText($view['page[title]']);
+ $this->assertNoText($view['block[title]']);
+ $this->drupalGet('');
+ $this->assertNoText($new_default_title);
+ $this->assertNoText($view['page[title]']);
+ $this->assertText($view['block[title]']);
+
+ // Edit the block and change the title. This should automatically change
+ // the block title only, and leave the defaults alone.
+ $edit = [];
+ $edit['title'] = $new_block_title = $this->randomMachineName(16);
+ $this->drupalPostForm("admin/structure/views/nojs/display/{$view['id']}/block_1/title", $edit, t('Apply'));
+ $this->drupalPostForm("admin/structure/views/view/{$view['id']}/edit/block_1", [], t('Save'));
+ $this->drupalGet($view['page[path]']);
+ $this->assertResponse(200);
+ $this->assertText($new_default_title);
+ $this->drupalGet($view['page[feed_properties][path]']);
+ $this->assertResponse(200);
+ $this->assertText($new_default_title);
+ $this->assertNoText($new_block_title);
+ $this->drupalGet('');
+ $this->assertText($new_block_title);
+ $this->assertNoText($view['block[title]']);
+ }
+
+ /**
+ * Tests that the revert to all displays select-option works as expected.
+ */
+ public function testRevertAllDisplays() {
+ // Create a basic view with a page, block.
+ // Because there is both a title on page and block we expect the title on
+ // the block be overridden.
+ $view['label'] = $this->randomMachineName(16);
+ $view['id'] = strtolower($this->randomMachineName(16));
+ $view['page[create]'] = 1;
+ $view['page[title]'] = $this->randomMachineName(16);
+ $view['page[path]'] = $this->randomMachineName(16);
+ $view['block[create]'] = 1;
+ $view['block[title]'] = $this->randomMachineName(16);
+ $this->drupalPostForm('admin/structure/views/add', $view, t('Save and edit'));
+
+ // Revert the title of the block to the default ones, but submit some new
+ // values to be sure that the new value is not stored.
+ $edit = [];
+ $edit['title'] = $new_block_title = $this->randomMachineName();
+ $edit['override[dropdown]'] = 'default_revert';
+
+ $this->drupalPostForm("admin/structure/views/nojs/display/{$view['id']}/block_1/title", $edit, t('Apply'));
+ $this->drupalPostForm("admin/structure/views/view/{$view['id']}/edit/block_1", [], t('Save'));
+ $this->assertText($view['page[title]']);
+ }
+
+}