class NodeRevisionsUiBypassAccessTest

class NodeRevisionsUiBypassAccessTest extends NodeTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * User with bypass node access permission.
     *
     * @var \Drupal\user\Entity\User
     */
    protected $editor;
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'block',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        // Create a user.
        $this->editor = $this->drupalCreateUser([
            'administer nodes',
            'edit any page content',
            'view page revisions',
            'bypass node access',
            'access user profiles',
        ]);
    }
    
    /**
     * Checks that the Revision tab is displayed correctly.
     */
    public function testDisplayRevisionTab() {
        $this->drupalPlaceBlock('local_tasks_block');
        $this->drupalLogin($this->editor);
        // Set page revision setting 'create new revision'. This will mean new
        // revisions are created by default when the node is edited.
        $type = NodeType::load('page');
        $type->setNewRevision(TRUE);
        $type->save();
        // Create the node.
        $node = $this->drupalCreateNode();
        // Verify the checkbox is checked on the node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertFieldChecked('edit-revision', "'Create new revision' checkbox is checked");
        // Uncheck the create new revision checkbox and save the node.
        $edit = [
            'revision' => FALSE,
        ];
        $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, 'Save');
        $this->assertUrl($node->toUrl());
        // Verify revisions exist since the content type has revisions enabled.
        $this->assertSession()
            ->linkExists(t('Revisions'));
        // Verify the checkbox is checked on the node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertFieldChecked('edit-revision', "'Create new revision' checkbox is checked");
        // Submit the form without changing the checkbox.
        $edit = [];
        $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, 'Save');
        $this->assertUrl($node->toUrl());
        $this->assertSession()
            ->linkExists(t('Revisions'));
        // Unset page revision setting 'create new revision'. This will mean new
        // revisions are not created by default when the node is edited.
        $type = NodeType::load('page');
        $type->setNewRevision(FALSE);
        $type->save();
        // Create the node.
        $node = $this->drupalCreateNode();
        // Verify the checkbox is unchecked on the node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertNoFieldChecked('edit-revision', "'Create new revision' checkbox is unchecked");
        // Submit the form without changing the checkbox.
        $edit = [];
        $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, 'Save');
        $this->assertUrl($node->toUrl());
        // Verify that no link to revisions is displayed since the type
        // has the 'create new revision' setting unset.
        $this->assertSession()
            ->linkNotExists(t('Revisions'));
        // Verify the checkbox is unchecked on the node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertNoFieldChecked('edit-revision', "'Create new revision' checkbox is unchecked");
        // Check the 'create new revision' checkbox and save the node.
        $edit = [
            'revision' => TRUE,
        ];
        $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, 'Save');
        $this->assertUrl($node->toUrl());
        // Verify that the link is displayed since a new revision is created and
        // the 'create new revision' checkbox on the node is checked.
        $this->assertSession()
            ->linkExists(t('Revisions'));
    }

}