class AjaxWizardTest

class AjaxWizardTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'ajax_example',
    ];
    
    /**
     * Test that we can successfully submit the wizard following the steps.
     *
     * It verifies that each step displays the correct fields and we can finally
     * see the success message once we submit the form.
     */
    public function testWizardSteps() {
        // Get our Mink stuff.
        $session = $this->getSession();
        $page = $session->getPage();
        $assert = $this->assertSession();
        // Get the page.
        $form_url = Url::fromRoute('ajax_example.wizard');
        $this->drupalGet($form_url);
        // Check our initial state.
        $assert->fieldExists('name');
        $assert->fieldNotExists('address');
        $assert->fieldNotExists('city');
        $assert->buttonExists('Next step');
        $assert->buttonNotExists('Previous step');
        $assert->buttonNotExists('Submit your information');
        // We fill the  name at first step and continue with the second step.
        $page->fillField('name', 'José Saramago');
        $page->pressButton('Next step');
        $assert->assertWaitOnAjaxRequest();
        // Check the state of the second step.
        $assert->fieldExists('address');
        $assert->fieldNotExists('name');
        $assert->fieldNotExists('city');
        $assert->buttonExists('Next step');
        $assert->buttonExists('Previous step');
        $assert->buttonNotExists('Submit your information');
        // We fill the address at the second step and continue with the last step.
        $page->fillField('address', 'Rua dos Bacalhoeiros, 10');
        $page->pressButton('Next step');
        $assert->assertWaitOnAjaxRequest();
        // Check the state of the third step.
        $assert->fieldExists('city');
        $assert->fieldNotExists('name');
        $assert->fieldNotExists('address');
        $assert->buttonNotExists('Next step');
        $assert->buttonExists('Previous step');
        $assert->buttonExists('Submit your information');
        // We fill the city at the third step and we finally submit the form.
        $page->fillField('city', 'Lisboa');
        $page->pressButton('Submit your information');
        // We check the output and assert that the already set values are displayed.
        $assert->pageTextContains('Your information has been submitted:');
        $assert->pageTextContains('Name: José Saramago');
        $assert->pageTextContains('Address: Rua dos Bacalhoeiros, 10');
        $assert->pageTextContains('City: Lisboa');
    }
    
    /**
     * Test that the previous values are correctly displayed.
     *
     * If we move back to previous steps the already set values should be
     * displayed.
     */
    public function testWizardPreviousStepsValues() {
        // Get our Mink stuff.
        $session = $this->getSession();
        $page = $session->getPage();
        $assert = $this->assertSession();
        // Get the page.
        $form_url = Url::fromRoute('ajax_example.wizard');
        $this->drupalGet($form_url);
        // We fill the first step and continue.
        $page->fillField('name', 'José Saramago');
        $page->pressButton('Next step');
        $assert->assertWaitOnAjaxRequest();
        // We fill the second step and continue with the last step.
        $page->fillField('address', 'Rua dos Bacalhoeiros, 10');
        $page->pressButton('Next step');
        $assert->assertWaitOnAjaxRequest();
        // We fill the third step and we finally submit the form.
        $page->fillField('city', 'Lisboa');
        // Now we move back to previous steps and check that the values are still
        // there.
        $page->pressButton('Previous step');
        $assert->assertWaitOnAjaxRequest();
        $assert->fieldValueEquals('address', 'Rua dos Bacalhoeiros, 10');
        $page->pressButton('Previous step');
        $assert->assertWaitOnAjaxRequest();
        $assert->fieldValueEquals('name', 'José Saramago');
    }

}