--- /dev/null
+<?php
+
+namespace Drupal\KernelTests\Core\Datetime;
+
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\language\Entity\ConfigurableLanguage;
+
+/**
+ * Tests date formatting.
+ *
+ * @group Common
+ */
+class FormatDateTest extends KernelTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['language', 'system'];
+
+ /**
+ * Arbitrary langcode for a custom language.
+ */
+ const LANGCODE = 'xx';
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ $this->installConfig(['system']);
+
+ $this->setSetting('locale_custom_strings_' . self::LANGCODE, [
+ '' => ['Sunday' => 'domingo'],
+ 'Long month name' => ['March' => 'marzo'],
+ ]);
+
+ $formats = $this->container->get('entity.manager')
+ ->getStorage('date_format')
+ ->loadMultiple(['long', 'medium', 'short']);
+ $formats['long']->setPattern('l, j. F Y - G:i')->save();
+ $formats['medium']->setPattern('j. F Y - G:i')->save();
+ $formats['short']->setPattern('Y M j - g:ia')->save();
+
+ ConfigurableLanguage::createFromLangcode(static::LANGCODE)->save();
+ }
+
+ /**
+ * Tests the format_date() function.
+ */
+ public function testFormatDate() {
+ /** @var \Drupal\Core\Datetime\DateFormatterInterface $formatter */
+ $formatter = $this->container->get('date.formatter');
+ /** @var \Drupal\Core\Language\LanguageManagerInterface $language_manager */
+ $language_manager = $this->container->get('language_manager');
+
+ $timestamp = strtotime('2007-03-26T00:00:00+00:00');
+ $this->assertSame('Sunday, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', 'l, d-M-y H:i:s T', 'America/Los_Angeles', 'en'), 'Test all parameters.');
+ $this->assertSame('domingo, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', 'l, d-M-y H:i:s T', 'America/Los_Angeles', self::LANGCODE), 'Test translated format.');
+ $this->assertSame('l, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', '\\l, d-M-y H:i:s T', 'America/Los_Angeles', self::LANGCODE), 'Test an escaped format string.');
+ $this->assertSame('\\domingo, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', '\\\\l, d-M-y H:i:s T', 'America/Los_Angeles', self::LANGCODE), 'Test format containing backslash character.');
+ $this->assertSame('\\l, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', '\\\\\\l, d-M-y H:i:s T', 'America/Los_Angeles', self::LANGCODE), 'Test format containing backslash followed by escaped format string.');
+ $this->assertSame('Monday, 26-Mar-07 01:00:00 BST', $formatter->format($timestamp, 'custom', 'l, d-M-y H:i:s T', 'Europe/London', 'en'), 'Test a different time zone.');
+ $this->assertSame('Thu, 01/01/1970 - 00:00', $formatter->format(0, 'custom', '', 'UTC', 'en'), 'Test custom format with empty string.');
+
+ // Make sure we didn't change the configuration override language.
+ $this->assertSame('en', $language_manager->getConfigOverrideLanguage()->getId(), 'Configuration override language not disturbed,');
+
+ // Test bad format string will use the fallback format.
+ $this->assertSame($formatter->format($timestamp, 'fallback'), $formatter->format($timestamp, 'bad_format_string'), 'Test fallback format.');
+ $this->assertSame('en', $language_manager->getConfigOverrideLanguage()->getId(), 'Configuration override language not disturbed,');
+
+ // Change the default language and timezone.
+ $this->config('system.site')->set('default_langcode', static::LANGCODE)->save();
+ date_default_timezone_set('America/Los_Angeles');
+
+ // Reset the language manager so new negotiations attempts will fall back on
+ // on the new language.
+ $language_manager->reset();
+ $this->assertSame('en', $language_manager->getConfigOverrideLanguage()->getId(), 'Configuration override language not disturbed,');
+
+ $this->assertSame('Sunday, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', 'l, d-M-y H:i:s T', 'America/Los_Angeles', 'en'), 'Test a different language.');
+ $this->assertSame('Monday, 26-Mar-07 01:00:00 BST', $formatter->format($timestamp, 'custom', 'l, d-M-y H:i:s T', 'Europe/London'), 'Test a different time zone.');
+ $this->assertSame('domingo, 25-Mar-07 17:00:00 PDT', $formatter->format($timestamp, 'custom', 'l, d-M-y H:i:s T'), 'Test custom date format.');
+ $this->assertSame('domingo, 25. marzo 2007 - 17:00', $formatter->format($timestamp, 'long'), 'Test long date format.');
+ $this->assertSame('25. marzo 2007 - 17:00', $formatter->format($timestamp, 'medium'), 'Test medium date format.');
+ $this->assertSame('2007 Mar 25 - 5:00pm', $formatter->format($timestamp, 'short'), 'Test short date format.');
+ $this->assertSame('25. marzo 2007 - 17:00', $formatter->format($timestamp), 'Test default date format.');
+ // Test HTML time element formats.
+ $this->assertSame('2007-03-25T17:00:00-0700', $formatter->format($timestamp, 'html_datetime'), 'Test html_datetime date format.');
+ $this->assertSame('2007-03-25', $formatter->format($timestamp, 'html_date'), 'Test html_date date format.');
+ $this->assertSame('17:00:00', $formatter->format($timestamp, 'html_time'), 'Test html_time date format.');
+ $this->assertSame('03-25', $formatter->format($timestamp, 'html_yearless_date'), 'Test html_yearless_date date format.');
+ $this->assertSame('2007-W12', $formatter->format($timestamp, 'html_week'), 'Test html_week date format.');
+ $this->assertSame('2007-03', $formatter->format($timestamp, 'html_month'), 'Test html_month date format.');
+ $this->assertSame('2007', $formatter->format($timestamp, 'html_year'), 'Test html_year date format.');
+
+ // Make sure we didn't change the configuration override language.
+ $this->assertSame('en', $language_manager->getConfigOverrideLanguage()->getId(), 'Configuration override language not disturbed,');
+
+ // Test bad format string will use the fallback format.
+ $this->assertSame($formatter->format($timestamp, 'fallback'), $formatter->format($timestamp, 'bad_format_string'), 'Test fallback format.');
+ $this->assertSame('en', $language_manager->getConfigOverrideLanguage()->getId(), 'Configuration override language not disturbed,');
+
+ // HTML is not escaped by the date formatter, it must be escaped later.
+ $this->assertSame("<script>alert('2007');</script>", $formatter->format($timestamp, 'custom', '\<\s\c\r\i\p\t\>\a\l\e\r\t\(\'Y\'\)\;\<\/\s\c\r\i\p\t\>'), 'Script tags not removed from dates.');
+ $this->assertSame('<em>2007</em>', $formatter->format($timestamp, 'custom', '\<\e\m\>Y\<\/\e\m\>'), 'Em tags are not removed from dates.');
+ }
+
+}