DevelStateEditorTest.php

<?php

namespace Drupal\Tests\devel\Functional;

use Behat\Mink\Element\NodeElement;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests devel state editor.
 *
 * @group devel
 */
class DevelStateEditorTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'devel',
        'block',
    ];
    
    /**
     * The state store.
     *
     * @var \Drupal\Core\State\StateInterface
     */
    protected $state;
    
    /**
     * The user for tests.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $develUser;
    
    /**
     * The user for tests.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * {@inheritdoc}
     */
    public function setUp() {
        parent::setUp();
        $this->state = $this->container
            ->get('state');
        $this->drupalPlaceBlock('page_title_block');
        $this->develUser = $this->drupalCreateUser([
            'access devel information',
        ]);
        $this->adminUser = $this->drupalCreateUser([
            'access devel information',
            'administer site configuration',
        ]);
    }
    
    /**
     * Tests state editor menu link.
     */
    public function testStateEditMenuLink() {
        $this->drupalPlaceBlock('system_menu_block:devel');
        $this->drupalLogin($this->develUser);
        // Ensures that the state editor link is present on the devel menu and that
        // it points to the correct page.
        $this->drupalGet('');
        $this->clickLink('State editor');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->addressEquals('/devel/state');
        $this->assertSession()
            ->pageTextContains('State editor');
    }
    
    /**
     * Tests state listing.
     */
    public function testStateListing() {
        $table_selector = 'table.devel-state-list';
        // Ensure that state listing page is accessible only by users with the
        // adequate permissions.
        $this->drupalGet('devel/state');
        $this->assertSession()
            ->statusCodeEquals(403);
        $this->drupalLogin($this->develUser);
        $this->drupalGet('devel/state');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('State editor');
        // Ensure that the state variables table is visible.
        $table = $this->assertSession()
            ->elementExists('css', $table_selector);
        // Ensure that all state variables are listed in the table.
        $states = \Drupal::keyValue('state')->getAll();
        $rows = $table->findAll('css', 'tbody tr');
        $this->assertEquals(count($rows), count($states), 'All states are listed in the table.');
        // Ensure that the added state variables are listed in the table.
        $this->state
            ->set('devel.simple', 'Hello!');
        $this->drupalGet('devel/state');
        $table = $this->assertSession()
            ->elementExists('css', $table_selector);
        $this->assertSession()
            ->elementExists('css', sprintf('tbody td:contains("%s")', 'devel.simple'), $table);
        // Ensure that the operations column and the actions buttons are not
        // available for user without 'administer site configuration' permission.
        $headers = $table->findAll('css', 'thead th');
        $this->assertEquals(count($headers), 2, 'Correct number of table header cells found.');
        $this->assertElementsTextEquals($headers, [
            'Name',
            'Value',
        ]);
        $this->assertSession()
            ->elementNotExists('css', 'ul.dropbutton li a', $table);
        // Ensure that the operations column and the actions buttons are
        // available for user with 'administer site configuration' permission.
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('devel/state');
        $table = $this->assertSession()
            ->elementExists('css', $table_selector);
        $headers = $table->findAll('css', 'thead th');
        $this->assertEquals(count($headers), 3, 'Correct number of table header cells found.');
        $this->assertElementsTextEquals($headers, [
            'Name',
            'Value',
            'Operations',
        ]);
        $this->assertSession()
            ->elementExists('css', 'ul.dropbutton li a', $table);
        // Test that the edit button works properly.
        $this->clickLink('Edit');
        $this->assertSession()
            ->statusCodeEquals(200);
    }
    
    /**
     * Tests state edit.
     */
    public function testStateEdit() {
        // Create some state variables for the test.
        $this->state
            ->set('devel.simple', 0);
        $this->state
            ->set('devel.array', [
            'devel' => 'value',
        ]);
        $this->state
            ->set('devel.object', $this->randomObject());
        // Ensure that state edit form is accessible only by users with the
        // adequate permissions.
        $this->drupalLogin($this->develUser);
        $this->drupalGet('devel/state/edit/devel.simple');
        $this->assertSession()
            ->statusCodeEquals(403);
        $this->drupalLogin($this->adminUser);
        // Ensure that accessing an un-existent state variable cause a warning
        // message.
        $this->drupalGet('devel/state/edit/devel.unknown');
        $this->assertSession()
            ->pageTextContains(strtr('State @name does not exist in the system.', [
            '@name' => 'devel.unknown',
        ]));
        // Ensure that state variables that contain simple type can be edited and
        // saved.
        $this->drupalGet('devel/state/edit/devel.simple');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains(strtr('Edit state variable: @name', [
            '@name' => 'devel.simple',
        ]));
        $input = $this->assertSession()
            ->fieldExists('edit-new-value');
        $this->assertFalse($input->hasAttribute('disabled'));
        $button = $this->assertSession()
            ->buttonExists('edit-submit');
        $this->assertFalse($button->hasAttribute('disabled'));
        $edit = [
            'new_value' => 1,
        ];
        $this->drupalPostForm('devel/state/edit/devel.simple', $edit, 'Save');
        $this->assertSession()
            ->pageTextContains(strtr('Variable @name was successfully edited.', [
            '@name' => 'devel.simple',
        ]));
        $this->assertEquals(1, $this->state
            ->get('devel.simple'));
        // Ensure that state variables that contain array can be edited and saved
        // and the new value is properly validated.
        $this->drupalGet('devel/state/edit/devel.array');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains(strtr('Edit state variable: @name', [
            '@name' => 'devel.array',
        ]));
        $input = $this->assertSession()
            ->fieldExists('edit-new-value');
        $this->assertFalse($input->hasAttribute('disabled'));
        $button = $this->assertSession()
            ->buttonExists('edit-submit');
        $this->assertFalse($button->hasAttribute('disabled'));
        // Try to save an invalid yaml input.
        $edit = [
            'new_value' => 'devel: \'value updated',
        ];
        $this->drupalPostForm('devel/state/edit/devel.array', $edit, 'Save');
        $this->assertSession()
            ->pageTextContains('Invalid input:');
        $edit = [
            'new_value' => 'devel: \'value updated\'',
        ];
        $this->drupalPostForm('devel/state/edit/devel.array', $edit, 'Save');
        $this->assertSession()
            ->pageTextContains(strtr('Variable @name was successfully edited.', [
            '@name' => 'devel.array',
        ]));
        $this->assertEquals([
            'devel' => 'value updated',
        ], $this->state
            ->get('devel.array'));
        // Ensure that state variables that contain objects cannot be edited.
        $this->drupalGet('devel/state/edit/devel.object');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains(strtr('Edit state variable: @name', [
            '@name' => 'devel.object',
        ]));
        $this->assertSession()
            ->pageTextContains(strtr('Only simple structures are allowed to be edited. State @name contains objects.', [
            '@name' => 'devel.object',
        ]));
        $this->assertSession()
            ->fieldDisabled('edit-new-value');
        $button = $this->assertSession()
            ->buttonExists('edit-submit');
        $this->assertTrue($button->hasAttribute('disabled'));
        // Ensure that the cancel link works as expected.
        $this->clickLink('Cancel');
        $this->assertSession()
            ->addressEquals('devel/state');
    }
    
    /**
     * Checks that the passed in elements have the expected text.
     *
     * @param \Behat\Mink\Element\NodeElement[] $elements
     *   The elements for which check the text.
     * @param array $expected_elements_text
     *   The expected text for the passed in elements.
     */
    protected function assertElementsTextEquals(array $elements, array $expected_elements_text) {
        $actual_text = array_map(function (NodeElement $element) {
            return $element->getText();
        }, $elements);
        $this->assertSame($expected_elements_text, $actual_text);
    }

}