class NumericFormatPluralTest

class NumericFormatPluralTest extends ViewTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'views_ui',
        'file',
        'language',
        'locale',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'numeric_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = [
        'views_test_config',
    ]) : void {
        parent::setUp($import_test_views, $modules);
        $web_user = $this->drupalCreateUser([
            'administer views',
            'administer languages',
        ]);
        $this->drupalLogin($web_user);
    }
    
    /**
     * Tests plural formatting setting on a numeric views handler.
     */
    public function testNumericFormatPlural() : void {
        // Create a file.
        $file = $this->createFile();
        // Assert that the starting configuration is correct.
        $config = $this->config('views.view.numeric_test');
        $field_config_prefix = 'display.default.display_options.fields.count.';
        $this->assertTrue($config->get($field_config_prefix . 'format_plural'));
        $this->assertEquals('1' . PoItem::DELIMITER . '@count', $config->get($field_config_prefix . 'format_plural_string'));
        // Assert that the value is displayed.
        $this->drupalGet('numeric-test');
        $this->assertSession()
            ->responseContains('<span class="field-content">0</span>');
        // Assert that the user interface has controls to change it.
        $this->drupalGet('admin/structure/views/nojs/handler/numeric_test/page_1/field/count');
        $this->assertSession()
            ->fieldValueEquals('options[format_plural_values][0]', '1');
        $this->assertSession()
            ->fieldValueEquals('options[format_plural_values][1]', '@count');
        // Assert that changing the settings will change configuration properly.
        $edit = [
            'options[format_plural_values][0]' => '1 time',
            'options[format_plural_values][1]' => '@count times',
        ];
        $this->submitForm($edit, 'Apply');
        $this->submitForm([], 'Save');
        $config = $this->config('views.view.numeric_test');
        $field_config_prefix = 'display.default.display_options.fields.count.';
        $this->assertTrue($config->get($field_config_prefix . 'format_plural'));
        $this->assertEquals('1 time' . PoItem::DELIMITER . '@count times', $config->get($field_config_prefix . 'format_plural_string'));
        // Assert that the value is displayed with some sample values.
        $numbers = [
            0,
            1,
            2,
            3,
            4,
            42,
        ];
        foreach ($numbers as $i => $number) {
            \Drupal::service('file.usage')->add($file, 'views_ui', 'dummy', $i, $number);
        }
        $this->drupalGet('numeric-test');
        foreach ($numbers as $i => $number) {
            $this->assertSession()
                ->responseContains('<span class="field-content">' . $number . ($number == 1 ? ' time' : ' times') . '</span>');
        }
        // Add Slovenian and set its plural formula to test multiple plural forms.
        $edit = [
            'predefined_langcode' => 'sl',
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        $formula = 'nplurals=4; plural=(n%100==1 ? 0 : n%100==2 ? 1 : n%100==3 || n%100==4 ? 2 : 3);';
        $header = new PoHeader();
        [
            $nplurals,
            $formula,
        ] = $header->parsePluralForms($formula);
        \Drupal::service('locale.plural.formula')->setPluralFormula('sl', $nplurals, $formula);
        // Change the view to Slovenian.
        $config = $this->config('views.view.numeric_test');
        $config->set('langcode', 'sl')
            ->save();
        // Assert that the user interface has controls with more inputs now.
        $this->drupalGet('admin/structure/views/nojs/handler/numeric_test/page_1/field/count');
        $this->assertSession()
            ->fieldValueEquals('options[format_plural_values][0]', '1 time');
        $this->assertSession()
            ->fieldValueEquals('options[format_plural_values][1]', '@count times');
        $this->assertSession()
            ->fieldValueEquals('options[format_plural_values][2]', '');
        $this->assertSession()
            ->fieldValueEquals('options[format_plural_values][3]', '');
        // Assert that changing the settings will change configuration properly.
        $edit = [
            'options[format_plural_values][0]' => '@count time0',
            'options[format_plural_values][1]' => '@count time1',
            'options[format_plural_values][2]' => '@count time2',
            'options[format_plural_values][3]' => '@count time3',
        ];
        $this->submitForm($edit, 'Apply');
        $this->submitForm([], 'Save');
        $config = $this->config('views.view.numeric_test');
        $field_config_prefix = 'display.default.display_options.fields.count.';
        $this->assertTrue($config->get($field_config_prefix . 'format_plural'));
        $this->assertEquals(implode(PoItem::DELIMITER, array_values($edit)), $config->get($field_config_prefix . 'format_plural_string'));
        // The view should now use the new plural configuration.
        $this->drupalGet('sl/numeric-test');
        $this->assertSession()
            ->responseContains('<span class="field-content">0 time3</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">1 time0</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">2 time1</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">3 time2</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">4 time2</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">42 time3</span>');
        // Add an English configuration translation with English plurals.
        $english = \Drupal::languageManager()->getLanguageConfigOverride('en', 'views.view.numeric_test');
        $english->set('display.default.display_options.fields.count.format_plural_string', '1 time' . PoItem::DELIMITER . '@count times')
            ->save();
        // The view displayed in English should use the English translation.
        $this->drupalGet('numeric-test');
        $this->assertSession()
            ->responseContains('<span class="field-content">0 times</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">1 time</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">2 times</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">3 times</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">4 times</span>');
        $this->assertSession()
            ->responseContains('<span class="field-content">42 times</span>');
    }
    
    /**
     * Creates and saves a test file.
     *
     * @return \Drupal\Core\Entity\EntityInterface
     *   A file entity.
     */
    protected function createFile() : EntityInterface {
        // Create a new file entity.
        $file = File::create([
            'uid' => 1,
            'filename' => 'druplicon.txt',
            'uri' => 'public://druplicon.txt',
            'filemime' => 'text/plain',
            'created' => 1,
            'changed' => 1,
        ]);
        $file->setPermanent();
        file_put_contents($file->getFileUri(), 'hello world');
        // Save it, inserting a new record.
        $file->save();
        return $file;
    }

}