class DateFormatsMachineNameTest

class DateFormatsMachineNameTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Create a new administrator user for the test.
        $admin = $this->drupalCreateUser([
            'administer site configuration',
        ]);
        $this->drupalLogin($admin);
    }
    
    /**
     * Tests that date formats cannot be created with invalid machine names.
     */
    public function testDateFormatsMachineNameAllowedValues() : void {
        // Try to create a date format with a not allowed character to test the date
        // format specific machine name replace pattern.
        $edit = [
            'label' => 'Something Not Allowed',
            'id' => 'something.bad',
            'date_format_pattern' => 'Y-m-d',
        ];
        $this->drupalGet('admin/config/regional/date-time/formats/add');
        $this->submitForm($edit, 'Add format');
        $this->assertSession()
            ->pageTextContains('The machine-readable name must be unique, and can only contain lowercase letters, numbers, and underscores. Additionally, it can not be the reserved word "custom".');
        // Try to create a date format with the reserved machine name "custom".
        $edit = [
            'label' => 'Custom',
            'id' => 'custom',
            'date_format_pattern' => 'Y-m-d',
        ];
        $this->drupalGet('admin/config/regional/date-time/formats/add');
        $this->submitForm($edit, 'Add format');
        $this->assertSession()
            ->pageTextContains('The machine-readable name must be unique, and can only contain lowercase letters, numbers, and underscores. Additionally, it can not be the reserved word "custom".');
        // Try to create a date format with a machine name, "fallback", that
        // already exists.
        $edit = [
            'label' => 'Fallback',
            'id' => 'fallback',
            'date_format_pattern' => 'j/m/Y',
        ];
        $this->drupalGet('admin/config/regional/date-time/formats/add');
        $this->submitForm($edit, 'Add format');
        $this->assertSession()
            ->pageTextContains('The machine-readable name is already in use. It must be unique.');
        // Create a date format with a machine name distinct from the previous two.
        $id = $this->randomMachineName(16);
        $edit = [
            'label' => $this->randomMachineName(16),
            'id' => $id,
            'date_format_pattern' => 'd/m/Y',
        ];
        $this->drupalGet('admin/config/regional/date-time/formats/add');
        $this->submitForm($edit, 'Add format');
        $this->assertSession()
            ->pageTextContains('Custom date format added.');
        // Try to create a date format with same machine name as the previous one.
        $edit = [
            'label' => $this->randomMachineName(16),
            'id' => $id,
            'date_format_pattern' => 'd-m-Y',
        ];
        $this->drupalGet('admin/config/regional/date-time/formats/add');
        $this->submitForm($edit, 'Add format');
        $this->assertSession()
            ->pageTextContains('The machine-readable name is already in use. It must be unique.');
    }

}