function FapiExampleTest::doTestAjaxAddMore

Test the Ajax Add More demo form.

File

form_api_example/tests/src/Functional/FapiExampleTest.php, line 277

Class

FapiExampleTest

Ensure that the form_api_example forms work properly.

Namespace

Code

public function doTestAjaxAddMore() {
    // XPath for the remove button. We have to use contains() here because the
    // ID will have a hash value at the end.
    $button_xpath = '//input[contains(@id,"edit-names-fieldset-actions-remove-name")]';
    $ajax_addmore_url = Url::fromRoute('form_api_example.ajax_addmore');
    // Verify that anonymous can access the ajax_add_more page.
    $this->drupalGet($ajax_addmore_url);
    $this->assertResponse(200);
    // Verify that there is no remove button.
    $this->assertEmpty($this->xpath($button_xpath));
    $name_one = 'John';
    $name_two = 'Smith';
    // Enter the value in field-1.
    // and click on 'Add one more' button.
    $edit = [];
    $edit['names_fieldset[name][0]'] = $name_one;
    $this->drupalPostForm($ajax_addmore_url, $edit, 'Add one more');
    // Verify field-2 gets added.
    // and value of field-1 should retained.
    $this->assertFieldsByValue($this->xpath('//input[@id = "edit-names-fieldset-name-0"]'), $name_one);
    $this->assertNotEmpty($this->xpath('//input[@id = "edit-names-fieldset-name-1"]'));
    // Verify that the remove button was added.
    $this->assertNotEmpty($this->xpath($button_xpath));
    // Enter the value in field-2
    // and click on 'Add one more' button.
    $edit['names_fieldset[name][1]'] = $name_two;
    $this->drupalPostForm(NULL, $edit, 'Add one more');
    // Verify field-3 gets added.
    // and value of field-1 and field-2 are retained.
    $this->assertFieldsByValue($this->xpath('//input[@id = "edit-names-fieldset-name-0"]'), $name_one);
    $this->assertFieldsByValue($this->xpath('//input[@id = "edit-names-fieldset-name-1"]'), $name_two);
    $this->assertNotEmpty($this->xpath('//input[@id = "edit-names-fieldset-name-2"]'));
    // Click on "Remove one" button to test remove button works.
    // and value of field-1 and field-2 are retained.
    $this->drupalPostForm(NULL, NULL, 'Remove one');
    $this->assertFieldsByValue($this->xpath('//input[@id = "edit-names-fieldset-name-0"]'), $name_one);
    $this->assertFieldsByValue($this->xpath('//input[@id = "edit-names-fieldset-name-1"]'), $name_two);
    $this->assertEmpty($this->xpath('//input[@id = "edit-names-fieldset-name-2"]'));
    // Submit the form and verify the results.
    $this->drupalPostForm(NULL, NULL, 'Submit');
    $this->assertText('These people are coming to the picnic: ' . $name_one . ', ' . $name_two);
}