--- /dev/null
+<?php
+
+namespace Drupal\Tests\search\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests if the search form block is available.
+ *
+ * @group search
+ */
+class SearchBlockTest extends BrowserTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected static $modules = ['block', 'node', 'search', 'dblog'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ // Create and log in user.
+ $admin_user = $this->drupalCreateUser(['administer blocks', 'search content']);
+ $this->drupalLogin($admin_user);
+ }
+
+ /**
+ * Test that the search form block can be placed and works.
+ */
+ public function testSearchFormBlock() {
+
+ // Test availability of the search block in the admin "Place blocks" list.
+ $this->drupalGet('admin/structure/block');
+ $this->getSession()->getPage()->findLink('Place block')->click();
+ $this->assertLinkByHref('/admin/structure/block/add/search_form_block/classy', 0,
+ 'Did not find the search block in block candidate list.');
+
+ $block = $this->drupalPlaceBlock('search_form_block');
+
+ $this->drupalGet('');
+ $this->assertText($block->label(), 'Block title was found.');
+
+ // Check that name attribute is not empty.
+ $pattern = "//input[@type='submit' and @name='']";
+ $elements = $this->xpath($pattern);
+ $this->assertTrue(empty($elements), 'The search input field does not have empty name attribute.');
+
+ // Test a normal search via the block form, from the front page.
+ $terms = ['keys' => 'test'];
+ $this->drupalPostForm('', $terms, t('Search'));
+ $this->assertResponse(200);
+ $this->assertText('Your search yielded no results');
+
+ // Test a search from the block on a 404 page.
+ $this->drupalGet('foo');
+ $this->assertResponse(404);
+ $this->drupalPostForm(NULL, $terms, t('Search'));
+ $this->assertResponse(200);
+ $this->assertText('Your search yielded no results');
+
+ $visibility = $block->getVisibility();
+ $visibility['request_path']['pages'] = 'search';
+ $block->setVisibilityConfig('request_path', $visibility['request_path']);
+
+ $this->drupalPostForm('', $terms, t('Search'));
+ $this->assertResponse(200);
+ $this->assertText('Your search yielded no results');
+
+ // Confirm that the form submits to the default search page.
+ /** @var $search_page_repository \Drupal\search\SearchPageRepositoryInterface */
+ $search_page_repository = \Drupal::service('search.search_page_repository');
+ $entity_id = $search_page_repository->getDefaultSearchPage();
+ $this->assertEqual(
+ $this->getUrl(),
+ \Drupal::url('search.view_' . $entity_id, [], ['query' => ['keys' => $terms['keys']], 'absolute' => TRUE]),
+ 'Submitted to correct URL.'
+ );
+
+ // Test an empty search via the block form, from the front page.
+ $terms = ['keys' => ''];
+ $this->drupalPostForm('', $terms, t('Search'));
+ $this->assertResponse(200);
+ $this->assertText('Please enter some keywords');
+
+ // Confirm that the user is redirected to the search page, when form is
+ // submitted empty.
+ $this->assertEqual(
+ $this->getUrl(),
+ \Drupal::url('search.view_' . $entity_id, [], ['query' => ['keys' => ''], 'absolute' => TRUE]),
+ 'Redirected to correct URL.'
+ );
+
+ // Test that after entering a too-short keyword in the form, you can then
+ // search again with a longer keyword. First test using the block form.
+ $this->drupalPostForm('node', ['keys' => $this->randomMachineName(1)], t('Search'));
+ $this->assertText('You must include at least one keyword to match in the content', 'Keyword message is displayed when searching for short word');
+ $this->assertNoText(t('Please enter some keywords'), 'With short word entered, no keywords message is not displayed');
+ $this->drupalPostForm(NULL, ['keys' => $this->randomMachineName()], t('Search'), [], 'search-block-form');
+ $this->assertNoText('You must include at least one keyword to match in the content', 'Keyword message is not displayed when searching for long word after short word search');
+
+ // Same test again, using the search page form for the second search this
+ // time.
+ $this->drupalPostForm('node', ['keys' => $this->randomMachineName(1)], t('Search'));
+ $this->drupalPostForm(NULL, ['keys' => $this->randomMachineName()], t('Search'), [], 'search-form');
+ $this->assertNoText('You must include at least one keyword to match in the content', 'Keyword message is not displayed when searching for long word after short word search');
+
+ }
+
+}