X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=web%2Fcore%2Fmodules%2Fpage_cache%2Ftests%2Fsrc%2FFunctional%2FPageCacheTest.php;fp=web%2Fcore%2Fmodules%2Fpage_cache%2Ftests%2Fsrc%2FFunctional%2FPageCacheTest.php;h=bf4951d9b0397fd3ffc571140d1b2e7a821de276;hp=0000000000000000000000000000000000000000;hb=9917807b03b64faf00f6a1f29dcb6eafc454efa5;hpb=aea91e65e895364e460983b890e295aa5d5540a5
diff --git a/web/core/modules/page_cache/tests/src/Functional/PageCacheTest.php b/web/core/modules/page_cache/tests/src/Functional/PageCacheTest.php
new file mode 100644
index 000000000..bf4951d9b
--- /dev/null
+++ b/web/core/modules/page_cache/tests/src/Functional/PageCacheTest.php
@@ -0,0 +1,646 @@
+config('system.site')
+ ->set('name', 'Drupal')
+ ->set('page.front', '/test-page')
+ ->save();
+ }
+
+ /**
+ * Test that cache tags are properly persisted.
+ *
+ * Since tag based invalidation works, we know that our tag properly
+ * persisted.
+ */
+ public function testPageCacheTags() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ $path = 'system-test/cache_tags_page';
+ $tags = ['system_test_cache_tags_page'];
+ $this->drupalGet($path);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+
+ // Verify a cache hit, but also the presence of the correct cache tags.
+ $this->drupalGet($path);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $cid_parts = [\Drupal::url('system_test.cache_tags_page', [], ['absolute' => TRUE]), 'html'];
+ $cid = implode(':', $cid_parts);
+ $cache_entry = \Drupal::cache('page')->get($cid);
+ sort($cache_entry->tags);
+ $expected_tags = [
+ 'config:user.role.anonymous',
+ 'http_response',
+ 'pre_render',
+ 'rendered',
+ 'system_test_cache_tags_page',
+ ];
+ $this->assertIdentical($cache_entry->tags, $expected_tags);
+
+ Cache::invalidateTags($tags);
+ $this->drupalGet($path);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ }
+
+ /**
+ * Test that the page cache doesn't depend on cacheability headers.
+ */
+ public function testPageCacheTagsIndependentFromCacheabilityHeaders() {
+ // Disable the cacheability headers.
+ $this->setContainerParameter('http.response.debug_cacheability_headers', FALSE);
+ $this->rebuildContainer();
+ $this->resetAll();
+
+ $path = 'system-test/cache_tags_page';
+ $tags = ['system_test_cache_tags_page'];
+ $this->drupalGet($path);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+
+ // Verify a cache hit, but also the presence of the correct cache tags.
+ $this->drupalGet($path);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $cid_parts = [\Drupal::url('system_test.cache_tags_page', [], ['absolute' => TRUE]), 'html'];
+ $cid = implode(':', $cid_parts);
+ $cache_entry = \Drupal::cache('page')->get($cid);
+ sort($cache_entry->tags);
+ $expected_tags = [
+ 'config:user.role.anonymous',
+ 'http_response',
+ 'pre_render',
+ 'rendered',
+ 'system_test_cache_tags_page',
+ ];
+ $this->assertIdentical($cache_entry->tags, $expected_tags);
+
+ Cache::invalidateTags($tags);
+ $this->drupalGet($path);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ }
+
+ /**
+ * Tests support for different cache items with different request formats
+ * specified via a query parameter.
+ */
+ public function testQueryParameterFormatRequests() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ $accept_header_cache_url = Url::fromRoute('system_test.page_cache_accept_header');
+ $accept_header_cache_url_with_json = Url::fromRoute('system_test.page_cache_accept_header', ['_format' => 'json']);
+
+ $this->drupalGet($accept_header_cache_url);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'HTML page was not yet cached.');
+ $this->drupalGet($accept_header_cache_url);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'HTML page was cached.');
+ $this->assertRaw('oh hai this is html.
', 'The correct HTML response was returned.');
+
+ $this->drupalGet($accept_header_cache_url_with_json);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'Json response was not yet cached.');
+ $this->drupalGet($accept_header_cache_url_with_json);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Json response was cached.');
+ $this->assertRaw('{"content":"oh hai this is json"}', 'The correct Json response was returned.');
+
+ // Enable REST support for nodes and hal+json.
+ \Drupal::service('module_installer')->install(['node', 'rest', 'hal', 'basic_auth']);
+ $this->drupalCreateContentType(['type' => 'article']);
+ $node = $this->drupalCreateNode(['type' => 'article']);
+ $node_uri = $node->urlInfo();
+ $node_url_with_hal_json_format = $node->urlInfo('canonical')->setRouteParameter('_format', 'hal_json');
+
+ $this->drupalGet($node_uri);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'text/html; charset=UTF-8');
+ $this->drupalGet($node_uri);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'text/html; charset=UTF-8');
+
+ // Now request a HAL page, we expect that the first request is a cache miss
+ // and it serves HTML.
+ $this->drupalGet($node_url_with_hal_json_format);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'application/hal+json');
+ $this->drupalGet($node_url_with_hal_json_format);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'application/hal+json');
+
+ // Clear the page cache. After that request a HAL request, followed by an
+ // ordinary HTML one.
+ \Drupal::cache('page')->deleteAll();
+ $this->drupalGet($node_url_with_hal_json_format);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'application/hal+json');
+ $this->drupalGet($node_url_with_hal_json_format);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'application/hal+json');
+
+ $this->drupalGet($node_uri);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'text/html; charset=UTF-8');
+ $this->drupalGet($node_uri);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $this->assertEqual($this->drupalGetHeader('Content-Type'), 'text/html; charset=UTF-8');
+ }
+
+ /**
+ * Tests support of requests with If-Modified-Since and If-None-Match headers.
+ */
+ public function testConditionalRequests() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ // Fill the cache.
+ $this->drupalGet('');
+ // Verify the page is not printed twice when the cache is cold.
+ $this->assertNoPattern('#drupalGet('');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+ $etag = $this->drupalGetHeader('ETag');
+ $last_modified = $this->drupalGetHeader('Last-Modified');
+
+ $this->drupalGet('', [], ['If-Modified-Since' => $last_modified, 'If-None-Match' => $etag]);
+ $this->assertResponse(304, 'Conditional request returned 304 Not Modified.');
+
+ $this->drupalGet('', [], [
+ 'If-Modified-Since' => gmdate(DATE_RFC822, strtotime($last_modified)),
+ 'If-None-Match' => $etag,
+ ]);
+ $this->assertResponse(304, 'Conditional request with obsolete If-Modified-Since date returned 304 Not Modified.');
+
+ $this->drupalGet('', [], [
+ 'If-Modified-Since' => gmdate(DATE_RFC850, strtotime($last_modified)),
+ 'If-None-Match' => $etag,
+ ]);
+ $this->assertResponse(304, 'Conditional request with obsolete If-Modified-Since date returned 304 Not Modified.');
+
+ $this->drupalGet('', [], ['If-Modified-Since' => $last_modified, 'If-None-Match' => NULL]);
+ // Verify the page is not printed twice when the cache is warm.
+ $this->assertNoPattern('#assertResponse(200, 'Conditional request without If-None-Match returned 200 OK.');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+
+ $this->drupalGet('', [], [
+ 'If-Modified-Since' => gmdate(DateTimePlus::RFC7231, strtotime($last_modified) + 1),
+ 'If-None-Match' => $etag,
+ ]);
+ $this->assertResponse(200, 'Conditional request with new a If-Modified-Since date newer than Last-Modified returned 200 OK.');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+
+ $user = $this->drupalCreateUser();
+ $this->drupalLogin($user);
+ $this->drupalGet('', [], ['If-Modified-Since' => $last_modified, 'If-None-Match' => $etag]);
+ $this->assertResponse(200, 'Conditional request returned 200 OK for authenticated user.');
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Absence of Page was not cached.');
+ }
+
+ /**
+ * Tests cache headers.
+ */
+ public function testPageCache() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ // Fill the cache.
+ $this->drupalGet('system-test/set-header', ['query' => ['name' => 'Foo', 'value' => 'bar']]);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'Page was not cached.');
+ $this->assertEqual(strtolower($this->drupalGetHeader('Vary')), 'cookie,accept-encoding', 'Vary header was sent.');
+ // Symfony's Response logic determines a specific order for the subvalues
+ // of the Cache-Control header, even if they are explicitly passed in to
+ // the response header bag in a different order.
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');
+
+ // Check cache.
+ $this->drupalGet('system-test/set-header', ['query' => ['name' => 'Foo', 'value' => 'bar']]);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+ $this->assertEqual(strtolower($this->drupalGetHeader('Vary')), 'cookie,accept-encoding', 'Vary: Cookie header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');
+
+ // Check replacing default headers.
+ $this->drupalGet('system-test/set-header', ['query' => ['name' => 'Expires', 'value' => 'Fri, 19 Nov 2008 05:00:00 GMT']]);
+ $this->assertEqual($this->drupalGetHeader('Expires'), 'Fri, 19 Nov 2008 05:00:00 GMT', 'Default header was replaced.');
+ $this->drupalGet('system-test/set-header', ['query' => ['name' => 'Vary', 'value' => 'User-Agent']]);
+ $this->assertEqual(strtolower($this->drupalGetHeader('Vary')), 'user-agent,accept-encoding', 'Default header was replaced.');
+
+ // Check that authenticated users bypass the cache.
+ $user = $this->drupalCreateUser();
+ $this->drupalLogin($user);
+ $this->drupalGet('system-test/set-header', ['query' => ['name' => 'Foo', 'value' => 'bar']]);
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Caching was bypassed.');
+ $this->assertTrue(strpos(strtolower($this->drupalGetHeader('Vary')), 'cookie') === FALSE, 'Vary: Cookie header was not sent.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'must-revalidate, no-cache, private', 'Cache-Control header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
+ $this->assertEqual($this->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');
+
+ // Until bubbling of max-age up to the response is supported, verify that
+ // a custom #cache max-age set on an element does not affect page max-age.
+ $this->drupalLogout();
+ $this->drupalGet('system-test/cache_maxage_page');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public');
+ }
+
+ /**
+ * Tests the automatic presence of the anonymous role's cache tag.
+ *
+ * The 'user.permissions' cache context ensures that if the permissions for a
+ * role are modified, users are not served stale render cache content. But,
+ * when entire responses are cached in reverse proxies, the value for the
+ * cache context is never calculated, causing the stale response to not be
+ * invalidated. Therefore, when varying by permissions and the current user is
+ * the anonymous user, the cache tag for the 'anonymous' role must be added.
+ *
+ * This test verifies that, and it verifies that it does not happen for other
+ * roles.
+ */
+ public function testPageCacheAnonymousRolePermissions() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ $content_url = Url::fromRoute('system_test.permission_dependent_content');
+ $route_access_url = Url::fromRoute('system_test.permission_dependent_route_access');
+
+ // 1. anonymous user, without permission.
+ $this->drupalGet($content_url);
+ $this->assertText('Permission to pet llamas: no!');
+ $this->assertCacheContext('user.permissions');
+ $this->assertCacheTag('config:user.role.anonymous');
+ $this->drupalGet($route_access_url);
+ $this->assertCacheContext('user.permissions');
+ $this->assertCacheTag('config:user.role.anonymous');
+
+ // 2. anonymous user, with permission.
+ user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, ['pet llamas']);
+ $this->drupalGet($content_url);
+ $this->assertText('Permission to pet llamas: yes!');
+ $this->assertCacheContext('user.permissions');
+ $this->assertCacheTag('config:user.role.anonymous');
+ $this->drupalGet($route_access_url);
+ $this->assertCacheContext('user.permissions');
+ $this->assertCacheTag('config:user.role.anonymous');
+
+ // 3. authenticated user, without permission.
+ $auth_user = $this->drupalCreateUser();
+ $this->drupalLogin($auth_user);
+ $this->drupalGet($content_url);
+ $this->assertText('Permission to pet llamas: no!');
+ $this->assertCacheContext('user.permissions');
+ $this->assertNoCacheTag('config:user.role.authenticated');
+ $this->drupalGet($route_access_url);
+ $this->assertCacheContext('user.permissions');
+ $this->assertNoCacheTag('config:user.role.authenticated');
+
+ // 4. authenticated user, with permission.
+ user_role_grant_permissions(RoleInterface::AUTHENTICATED_ID, ['pet llamas']);
+ $this->drupalGet($content_url);
+ $this->assertText('Permission to pet llamas: yes!');
+ $this->assertCacheContext('user.permissions');
+ $this->assertNoCacheTag('config:user.role.authenticated');
+ $this->drupalGet($route_access_url);
+ $this->assertCacheContext('user.permissions');
+ $this->assertNoCacheTag('config:user.role.authenticated');
+ }
+
+ /**
+ * Tests the 4xx-response cache tag is added and invalidated.
+ */
+ public function testPageCacheAnonymous403404() {
+ $admin_url = Url::fromRoute('system.admin');
+ $invalid_url = 'foo/does_not_exist';
+ $tests = [
+ 403 => $admin_url,
+ 404 => $invalid_url,
+ ];
+ $cache_ttl_4xx = Settings::get('cache_ttl_4xx', 3600);
+ foreach ($tests as $code => $content_url) {
+ // Anonymous user, without permissions.
+ $this->drupalGet($content_url);
+ $this->assertResponse($code);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ $this->assertCacheTag('4xx-response');
+ $this->drupalGet($content_url);
+ $this->assertResponse($code);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ $entity_values = [
+ 'name' => $this->randomMachineName(),
+ 'user_id' => 1,
+ 'field_test_text' => [
+ 0 => [
+ 'value' => $this->randomString(),
+ 'format' => 'plain_text',
+ ]
+ ],
+ ];
+ $entity = EntityTest::create($entity_values);
+ $entity->save();
+ // Saving an entity clears 4xx cache tag.
+ $this->drupalGet($content_url);
+ $this->assertResponse($code);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ $this->drupalGet($content_url);
+ $this->assertResponse($code);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
+ // Rebuilding the router should invalidate the 4xx cache tag.
+ $this->container->get('router.builder')->rebuild();
+ $this->drupalGet($content_url);
+ $this->assertResponse($code);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+
+ // Ensure the 'expire' field on the cache entry uses cache_ttl_4xx.
+ $cache_item = \Drupal::service('cache.page')->get($this->getUrl() . ':html');
+ $difference = $cache_item->expire - (int) $cache_item->created;
+ // Given that a second might have passed we cannot be sure that
+ // $difference will exactly equal the default cache_ttl_4xx setting.
+ // Account for any timing difference or rounding errors by ensuring the
+ // value is within 10 seconds.
+ $this->assertTrue(
+ $difference > $cache_ttl_4xx - 10 &&
+ $difference < $cache_ttl_4xx + 10,
+ "The cache entry expiry time uses the cache_ttl_4xx setting. Expire: {$cache_item->expire} Created: {$cache_item->created}"
+ );
+ }
+
+ // Disable 403 and 404 caching.
+ $settings['settings']['cache_ttl_4xx'] = (object) [
+ 'value' => 0,
+ 'required' => TRUE,
+ ];
+ $this->writeSettings($settings);
+ \Drupal::service('cache.page')->deleteAll();
+
+ foreach ($tests as $code => $content_url) {
+ // Getting the 404 page twice should still result in a cache miss.
+ $this->drupalGet($content_url);
+ $this->drupalGet($content_url);
+ $this->assertResponse($code);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
+ }
+ }
+
+ /**
+ * Tests the omit_vary_cookie setting.
+ */
+ public function testPageCacheWithoutVaryCookie() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ $settings['settings']['omit_vary_cookie'] = (object) [
+ 'value' => TRUE,
+ 'required' => TRUE,
+ ];
+ $this->writeSettings($settings);
+
+ // Fill the cache.
+ $this->drupalGet('');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'Page was not cached.');
+ $this->assertTrue(strpos($this->drupalGetHeader('Vary'), 'Cookie') === FALSE, 'Vary: Cookie header was not sent.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
+
+ // Check cache.
+ $this->drupalGet('');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+ $this->assertTrue(strpos($this->drupalGetHeader('Vary'), 'Cookie') === FALSE, 'Vary: Cookie header was not sent.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
+ }
+
+ /**
+ * Test the setting of forms to be immutable.
+ */
+ public function testFormImmutability() {
+ // Install the module that provides the test form.
+ $this->container->get('module_installer')
+ ->install(['page_cache_form_test']);
+ // Uninstall the page_cache module to verify that form is immutable
+ // regardless of the internal page cache module.
+ $this->container->get('module_installer')->uninstall(['page_cache']);
+ \Drupal::service('router.builder')->rebuild();
+
+ $this->drupalGet('page_cache_form_test_immutability');
+
+ $this->assertText("Immutable: TRUE", "Form is immutable.");
+
+ // The immutable flag is set unconditionally by system_form_alter(), set
+ // a flag to tell page_cache_form_test_module_implements_alter() to disable
+ // that implementation.
+ \Drupal::state()->set('page_cache_bypass_form_immutability', TRUE);
+ \Drupal::moduleHandler()->resetImplementations();
+ Cache::invalidateTags(['rendered']);
+
+ $this->drupalGet('page_cache_form_test_immutability');
+
+ $this->assertText("Immutable: FALSE", "Form is not immutable,");
+ }
+
+ /**
+ * Tests cacheability of a CacheableResponse.
+ *
+ * Tests the difference between having a controller return a plain Symfony
+ * Response object versus returning a Response object that implements the
+ * CacheableResponseInterface.
+ */
+ public function testCacheableResponseResponses() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ // GET a URL, which would be marked as a cache miss if it were cacheable.
+ $this->drupalGet('/system-test/respond-reponse');
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Drupal page cache header not found.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'must-revalidate, no-cache, private', 'Cache-Control header was sent');
+
+ // GET it again, verify it's still not cached.
+ $this->drupalGet('/system-test/respond-reponse');
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Drupal page cache header not found.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'must-revalidate, no-cache, private', 'Cache-Control header was sent');
+
+ // GET a URL, which would be marked as a cache miss if it were cacheable.
+ $this->drupalGet('/system-test/respond-public-response');
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Drupal page cache header not found.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=60, public', 'Cache-Control header was sent');
+
+ // GET it again, verify it's still not cached.
+ $this->drupalGet('/system-test/respond-public-response');
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Drupal page cache header not found.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=60, public', 'Cache-Control header was sent');
+
+ // GET a URL, which should be marked as a cache miss.
+ $this->drupalGet('/system-test/respond-cacheable-reponse');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'Page was not cached.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
+
+ // GET it again, it should now be a cache hit.
+ $this->drupalGet('/system-test/respond-cacheable-reponse');
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+ $this->assertEqual($this->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
+
+ // Uninstall page cache. This should flush all caches so the next call to a
+ // previously cached page should be a miss now.
+ $this->container->get('module_installer')
+ ->uninstall(['page_cache']);
+
+ // GET a URL that was cached by Page Cache before, it should not be now.
+ $this->drupalGet('/respond-cacheable-reponse');
+ $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'), 'Drupal page cache header not found.');
+ }
+
+ /**
+ * Tests that HEAD requests are treated the same as GET requests.
+ */
+ public function testHead() {
+ /** @var \GuzzleHttp\ClientInterface $client */
+ $client = $this->getSession()->getDriver()->getClient()->getClient();
+
+ // GET, then HEAD.
+ $url_a = $this->buildUrl('system-test/set-header', ['query' => ['name' => 'Foo', 'value' => 'bar']]);
+ $response_body = $this->drupalGet($url_a);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'Page was not cached.');
+ $this->assertEqual($this->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');
+ $this->assertEqual('The following header was set: Foo: bar', $response_body);
+ $response = $client->request('HEAD', $url_a);
+ $this->assertEqual($response->getHeaderLine('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+ $this->assertEqual($response->getHeaderLine('Foo'), 'bar', 'Custom header was sent.');
+ $this->assertEqual('', $response->getBody()->getContents());
+
+ // HEAD, then GET.
+ $url_b = $this->buildUrl('system-test/set-header', ['query' => ['name' => 'Foo', 'value' => 'baz']]);
+ $response = $client->request('HEAD', $url_b);
+ $this->assertEqual($response->getHeaderLine('X-Drupal-Cache'), 'MISS', 'Page was not cached.');
+ $this->assertEqual($response->getHeaderLine('Foo'), 'baz', 'Custom header was sent.');
+ $this->assertEqual('', $response->getBody()->getContents());
+ $response_body = $this->drupalGet($url_b);
+ $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
+ $this->assertEqual($this->drupalGetHeader('Foo'), 'baz', 'Custom header was sent.');
+ $this->assertEqual('The following header was set: Foo: baz', $response_body);
+ }
+
+ /**
+ * Test a cacheable response with custom cache control.
+ */
+ public function testCacheableWithCustomCacheControl() {
+ $config = $this->config('system.performance');
+ $config->set('cache.page.max_age', 300);
+ $config->save();
+
+ $this->drupalGet('/system-test/custom-cache-control');
+ $this->assertResponse(200);
+ $this->assertHeader('Cache-Control', 'bar, private');
+ }
+
+ /**
+ * Test that URLs are cached in a not normalized form.
+ */
+ public function testNoUrlNormalization() {
+
+ // Use absolute URLs to avoid any processing.
+ $url = Url::fromRoute('')->setAbsolute()->toString();
+
+ // In each test, the first array value is raw URL, the second one is the
+ // possible normalized URL.
+ $tests = [
+ [
+ $url . '?z=z&a=a',
+ $url . '?a=a&z=z',
+ ],
+ [
+ $url . '?',
+ $url . '',
+ ],
+ [
+ $url . '?a=b+c',
+ $url . '?a=b%20c',
+ ],
+ ];
+
+ foreach ($tests as list($url_raw, $url_normalized)) {
+ // Initialize cache on raw URL.
+ $headers = $this->getHeaders($url_raw);
+ $this->assertEquals('MISS', $headers['X-Drupal-Cache']);
+
+ // Ensure cache was set.
+ $headers = $this->getHeaders($url_raw);
+ $this->assertEquals('HIT', $headers['X-Drupal-Cache'], "Cache was set for {$url_raw} URL.");
+
+ // Check if the normalized URL is not cached.
+ $headers = $this->getHeaders($url_normalized);
+ $this->assertEquals('MISS', $headers['X-Drupal-Cache'], "Cache is missing for {$url_normalized} URL.");
+ }
+ }
+
+ /**
+ * Retrieves only the headers for an absolute path.
+ *
+ * Executes a cURL request without any modifications to the given URL.
+ * Note that Guzzle always normalizes URLs which prevents testing all
+ * possible edge cases.
+ *
+ * @param string $url
+ * URL to request.
+ *
+ * @return array
+ * Array of headers.
+ */
+ protected function getHeaders($url) {
+ $ch = curl_init();
+ curl_setopt($ch, CURLOPT_URL, $url);
+ curl_setopt($ch, CURLOPT_HEADER, TRUE);
+ curl_setopt($ch, CURLOPT_NOBODY, TRUE);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+ curl_setopt($ch, CURLOPT_USERAGENT, drupal_generate_test_ua($this->databasePrefix));
+ $output = curl_exec($ch);
+ curl_close($ch);
+
+ $headers = [];
+ foreach (explode("\n", $output) as $header) {
+ if (strpos($header, ':')) {
+ list($key, $value) = explode(':', $header, 2);
+ $headers[trim($key)] = trim($value);
+ }
+ }
+
+ return $headers;
+ }
+
+}