function FormTest::testNumber

Tests validation of #type 'number' and 'range' elements.

File

core/modules/system/tests/src/Functional/Form/FormTest.php, line 612

Class

FormTest

Tests various form element validation mechanisms.

Namespace

Code

public function testNumber() : void {
    $form = \Drupal::formBuilder()->getForm('\\Drupal\\form_test\\Form\\FormTestNumberForm');
    // Array with all the error messages to be checked.
    $error_messages = [
        'no_number' => '%name must be a number.',
        'too_low' => '%name must be higher than or equal to %min.',
        'too_high' => '%name must be lower than or equal to %max.',
        'step_mismatch' => '%name is not a valid number.',
    ];
    // The expected errors.
    $expected = [
        'integer_no_number' => 'no_number',
        'integer_no_step' => 0,
        'integer_no_step_step_error' => 'step_mismatch',
        'integer_step' => 0,
        'integer_step_error' => 'step_mismatch',
        'integer_step_min' => 0,
        'integer_step_min_error' => 'too_low',
        'integer_step_max' => 0,
        'integer_step_max_error' => 'too_high',
        'integer_step_min_border' => 0,
        'integer_step_max_border' => 0,
        'integer_step_based_on_min' => 0,
        'integer_step_based_on_min_error' => 'step_mismatch',
        'float_small_step' => 0,
        'float_step_no_error' => 0,
        'float_step_error' => 'step_mismatch',
        'float_step_hard_no_error' => 0,
        'float_step_hard_error' => 'step_mismatch',
        'float_step_any_no_error' => 0,
    ];
    // First test the number element type, then range.
    foreach ([
        'form-test/number',
        'form-test/number/range',
    ] as $path) {
        // Post form and show errors.
        $this->drupalGet($path);
        $this->submitForm([], 'Submit');
        foreach ($expected as $element => $error) {
            // Create placeholder array.
            $placeholders = [
                '%name' => $form[$element]['#title'],
                '%min' => $form[$element]['#min'] ?? '0',
                '%max' => $form[$element]['#max'] ?? '0',
            ];
            foreach ($error_messages as $id => $message) {
                // Check if the error exists on the page, if the current message ID is
                // expected. Otherwise ensure that the error message is not present.
                if ($id === $error) {
                    $this->assertSession()
                        ->responseContains(new FormattableMarkup($message, $placeholders));
                }
                else {
                    $this->assertSession()
                        ->responseNotContains(new FormattableMarkup($message, $placeholders));
                }
            }
        }
    }
}