class DateFormatterTest

class DateFormatterTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
        'system',
    ];
    
    /**
     * Arbitrary langcode for a custom language.
     */
    const LANGCODE = 'xx';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installConfig([
            'system',
        ]);
        $this->setSetting('locale_custom_strings_' . self::LANGCODE, [
            '' => [
                'Sunday' => 'domingo',
            ],
            'Long month name' => [
                'March' => 'marzo',
            ],
        ]);
        $formats = $this->container
            ->get('entity_type.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 DateFormatter::format().
     *
     * @covers ::format
     */
    public function testFormat() : void {
        
        /** @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.');
    }
    
    /**
     * Tests that an RFC2822 formatted date always returns an English string.
     *
     * @see http://www.faqs.org/rfcs/rfc2822.html
     *
     * @covers ::format
     */
    public function testRfc2822DateFormat() : void {
        $days_of_week_abbr = [
            'Sun',
            'Mon',
            'Tue',
            'Wed',
            'Thu',
            'Fri',
            'Sat',
        ];
        foreach ($days_of_week_abbr as $day_of_week_abbr) {
            $this->setSetting('locale_custom_strings_' . self::LANGCODE, [
                'Abbreviated weekday' => [
                    $day_of_week_abbr => $this->randomString(3),
                ],
            ]);
        }
        
        /** @var \Drupal\Core\Datetime\DateFormatterInterface $formatter */
        $formatter = $this->container
            ->get('date.formatter');
        // Check that RFC2822 format date is returned regardless of langcode.
        $this->assertEquals('Sat, 02 Feb 2019 13:30:00 +0100', $formatter->format(1549110600, 'custom', 'r', 'Europe/Berlin', static::LANGCODE));
        $this->assertEquals('Sat, 02 Feb 2019 13:30:00 +0100', $formatter->format(1549110600, 'custom', 'r', 'Europe/Berlin'));
    }

}