class HandlerTest

class HandlerTest extends ViewTestBase {
    use CommentTestTrait;
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_view',
        'test_view_handler_weight',
        'test_handler_relationships',
        'test_handler_test_access',
        'test_filter_in_operator_ui',
    ];
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'views_ui',
        'comment',
        'node',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    protected function setUp($import_test_views = TRUE) {
        parent::setUp($import_test_views);
        $this->drupalCreateContentType([
            'type' => 'page',
        ]);
        $this->addDefaultCommentField('node', 'page');
        $this->enableViewsTestModule();
    }
    
    /**
     * {@inheritdoc}
     */
    protected function viewsData() {
        $data = parent::viewsData();
        // Override the name handler to be able to call placeholder() from outside.
        $data['views_test_data']['name']['field']['id'] = 'test_field';
        // Setup one field with an access callback and one with an access callback
        // and arguments.
        $data['views_test_data']['access_callback'] = $data['views_test_data']['id'];
        $data['views_test_data']['access_callback_arguments'] = $data['views_test_data']['id'];
        foreach (ViewExecutable::getHandlerTypes() as $type => $info) {
            if (isset($data['views_test_data']['access_callback'][$type]['id'])) {
                $data['views_test_data']['access_callback'][$type]['access callback'] = 'views_test_data_handler_test_access_callback';
                $data['views_test_data']['access_callback_arguments'][$type]['access callback'] = 'views_test_data_handler_test_access_callback_argument';
                $data['views_test_data']['access_callback_arguments'][$type]['access arguments'] = [
                    TRUE,
                ];
            }
        }
        return $data;
    }
    
    /**
     * Tests the breakString method.
     */
    public function testBreakString() {
        // Check defaults.
        $this->assertEqual((object) [
            'value' => [],
            'operator' => NULL,
        ], HandlerBase::breakString(''));
        // Test ors
        $handler = HandlerBase::breakString('word1 word2+word');
        $this->assertEqualValue([
            'word1',
            'word2',
            'word',
        ], $handler);
        $this->assertEqual('or', $handler->operator);
        $handler = HandlerBase::breakString('word1+word2+word');
        $this->assertEqualValue([
            'word1',
            'word2',
            'word',
        ], $handler);
        $this->assertEqual('or', $handler->operator);
        $handler = HandlerBase::breakString('word1 word2 word');
        $this->assertEqualValue([
            'word1',
            'word2',
            'word',
        ], $handler);
        $this->assertEqual('or', $handler->operator);
        $handler = HandlerBase::breakString('word-1+word-2+word');
        $this->assertEqualValue([
            'word-1',
            'word-2',
            'word',
        ], $handler);
        $this->assertEqual('or', $handler->operator);
        $handler = HandlerBase::breakString('wõrd1+wõrd2+wõrd');
        $this->assertEqualValue([
            'wõrd1',
            'wõrd2',
            'wõrd',
        ], $handler);
        $this->assertEqual('or', $handler->operator);
        // Test ands.
        $handler = HandlerBase::breakString('word1,word2,word');
        $this->assertEqualValue([
            'word1',
            'word2',
            'word',
        ], $handler);
        $this->assertEqual('and', $handler->operator);
        $handler = HandlerBase::breakString('word1 word2,word');
        $this->assertEqualValue([
            'word1 word2',
            'word',
        ], $handler);
        $this->assertEqual('and', $handler->operator);
        $handler = HandlerBase::breakString('word1,word2 word');
        $this->assertEqualValue([
            'word1',
            'word2 word',
        ], $handler);
        $this->assertEqual('and', $handler->operator);
        $handler = HandlerBase::breakString('word-1,word-2,word');
        $this->assertEqualValue([
            'word-1',
            'word-2',
            'word',
        ], $handler);
        $this->assertEqual('and', $handler->operator);
        $handler = HandlerBase::breakString('wõrd1,wõrd2,wõrd');
        $this->assertEqualValue([
            'wõrd1',
            'wõrd2',
            'wõrd',
        ], $handler);
        $this->assertEqual('and', $handler->operator);
        // Test a single word
        $handler = HandlerBase::breakString('word');
        $this->assertEqualValue([
            'word',
        ], $handler);
        $this->assertEqual('and', $handler->operator);
        $s1 = $this->randomMachineName();
        // Generate three random numbers which can be used below;
        $n1 = rand(0, 100);
        $n2 = rand(0, 100);
        $n3 = rand(0, 100);
        // Test "or"s.
        $handlerBase = HandlerBase::breakString("{$s1} {$n2}+{$n3}");
        $this->assertEqualValue([
            $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1}+{$n2}+{$n3}");
        $this->assertEqualValue([
            $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1} {$n2} {$n3}");
        $this->assertEqualValue([
            $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1} {$n2}++{$n3}");
        $this->assertEqualValue([
            $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        // Test "and"s.
        $handlerBase = HandlerBase::breakString("{$s1},{$n2},{$n3}");
        $this->assertEqualValue([
            $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('and', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1},,{$n2},{$n3}");
        $this->assertEqualValue([
            $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('and', $handlerBase->operator);
        // Enforce int values.
        $handlerBase = HandlerBase::breakString("{$n1},{$n2},{$n3}", TRUE);
        $this->assertEqualValue([
            $n1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('and', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$n1}+{$n2}+{$n3}", TRUE);
        $this->assertEqualValue([
            $n1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1},{$n2},{$n3}", TRUE);
        $this->assertEqualValue([
            (int) $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('and', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1}+{$n2}+{$n3}", TRUE);
        $this->assertEqualValue([
            (int) $s1,
            $n2,
            $n3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        // Generate three random decimals which can be used below;
        $d1 = rand(0, 10) / 10;
        $d2 = rand(0, 10) / 10;
        $d3 = rand(0, 10) / 10;
        // Test "or"s.
        $handlerBase = HandlerBase::breakString("{$s1} {$d1}+{$d2}");
        $this->assertEqualValue([
            $s1,
            $d1,
            $d2,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1}+{$d1}+{$d3}");
        $this->assertEqualValue([
            $s1,
            $d1,
            $d3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1} {$d2} {$d3}");
        $this->assertEqualValue([
            $s1,
            $d2,
            $d3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1} {$d2}++{$d3}");
        $this->assertEqualValue([
            $s1,
            $d2,
            $d3,
        ], $handlerBase);
        $this->assertEqual('or', $handlerBase->operator);
        // Test "and"s.
        $handlerBase = HandlerBase::breakString("{$s1},{$d2},{$d3}");
        $this->assertEqualValue([
            $s1,
            $d2,
            $d3,
        ], $handlerBase);
        $this->assertEqual('and', $handlerBase->operator);
        $handlerBase = HandlerBase::breakString("{$s1},,{$d2},{$d3}");
        $this->assertEqualValue([
            $s1,
            $d2,
            $d3,
        ], $handlerBase);
        $this->assertEqual('and', $handlerBase->operator);
    }
    
    /**
     * Tests the order of handlers is the same before and after saving.
     */
    public function testHandlerWeights() {
        $handler_types = [
            'fields',
            'filters',
            'sorts',
        ];
        $view = Views::getView('test_view_handler_weight');
        $view->initDisplay();
        // Store the order of handlers before saving the view.
        $original_order = [];
        foreach ($handler_types as $type) {
            $original_order[$type] = array_keys($view->display_handler
                ->getOption($type));
        }
        // Save the view and see if our filters are in the same order.
        $view->save();
        $view = views::getView('test_view_handler_weight');
        $view->initDisplay();
        foreach ($handler_types as $type) {
            $loaded_order = array_keys($view->display_handler
                ->getOption($type));
            $this->assertIdentical($original_order[$type], $loaded_order);
        }
    }
    
    /**
     * Check to see if a value is the same as the value on a certain handler.
     *
     * @param $expected
     *   The expected value to check.
     * @param \Drupal\views\Plugin\views\ViewsHandlerInterface $handler
     *   The handler that has the $handler->value property to compare with first.
     * @param string $message
     *   The message to display along with the assertion.
     * @param string $group
     *   The type of assertion - examples are "Browser", "PHP".
     *
     * @return bool
     *   TRUE if the assertion succeeded, FALSE otherwise.
     */
    protected function assertEqualValue($expected, $handler, $message = '', $group = 'Other') {
        if (empty($message)) {
            $message = t('Comparing @first and @second', [
                '@first' => implode(',', $expected),
                '@second' => implode(',', $handler->value),
            ]);
        }
        return $this->assert($expected == $handler->value, $message, $group);
    }
    
    /**
     * Tests the relationship ui for field/filter/argument/relationship.
     */
    public function testRelationshipUI() {
        $views_admin = $this->drupalCreateUser([
            'administer views',
        ]);
        $this->drupalLogin($views_admin);
        // Make sure the link to the field options exists.
        $handler_options_path = 'admin/structure/views/nojs/handler/test_handler_relationships/default/field/title';
        $view_edit_path = 'admin/structure/views/view/test_handler_relationships/edit';
        $this->drupalGet($view_edit_path);
        $this->assertLinkByHref($handler_options_path);
        // The test view has a relationship to node_revision so the field should
        // show a relationship selection.
        $this->drupalGet($handler_options_path);
        $relationship_name = 'options[relationship]';
        $this->assertFieldByName($relationship_name);
        // Check for available options.
        $fields = $this->getSession()
            ->getPage()
            ->findAll('named_exact', [
            'field',
            $relationship_name,
        ]);
        $options = [];
        foreach ($fields as $field) {
            $items = $field->findAll('css', 'option');
            foreach ($items as $item) {
                $options[] = $item->getAttribute('value');
            }
        }
        $expected_options = [
            'none',
            'nid',
        ];
        $this->assertEqual($options, $expected_options);
        // Remove the relationship and make sure no relationship option appears.
        $this->drupalPostForm('admin/structure/views/nojs/handler/test_handler_relationships/default/relationship/nid', [], t('Remove'));
        $this->drupalGet($handler_options_path);
        $this->assertNoFieldByName($relationship_name, NULL, 'Make sure that no relationship option is available');
        // Create a view of comments with node relationship.
        View::create([
            'base_table' => 'comment_field_data',
            'id' => 'test_get_entity_type',
        ])->save();
        $this->drupalPostForm('admin/structure/views/nojs/add-handler/test_get_entity_type/default/relationship', [
            'name[comment_field_data.node]' => 'comment_field_data.node',
        ], t('Add and configure relationships'));
        $this->drupalPostForm(NULL, [], t('Apply'));
        // Add a content type filter.
        $this->drupalPostForm('admin/structure/views/nojs/add-handler/test_get_entity_type/default/filter', [
            'name[node_field_data.type]' => 'node_field_data.type',
        ], t('Add and configure filter criteria'));
        $this->assertOptionSelected('edit-options-relationship', 'node');
        $this->drupalPostForm(NULL, [
            'options[value][page]' => 'page',
        ], t('Apply'));
        // Check content type filter options.
        $this->drupalGet('admin/structure/views/nojs/handler/test_get_entity_type/default/filter/type');
        $this->assertOptionSelected('edit-options-relationship', 'node');
        $this->assertFieldChecked('edit-options-value-page');
    }
    
    /**
     * Tests the relationship method on the base class.
     */
    public function testSetRelationship() {
        $view = Views::getView('test_handler_relationships');
        $view->setDisplay();
        // Setup a broken relationship.
        $view->addHandler('default', 'relationship', $this->randomMachineName(), $this->randomMachineName(), [], 'broken_relationship');
        // Setup a valid relationship.
        $view->addHandler('default', 'relationship', 'comment_field_data', 'node', [
            'relationship' => 'cid',
        ], 'valid_relationship');
        $view->initHandlers();
        $field = $view->field['title'];
        $field->options['relationship'] = NULL;
        $field->setRelationship();
        $this->assertNull($field->relationship, 'Make sure that an empty relationship does not create a relationship on the field.');
        $field->options['relationship'] = $this->randomMachineName();
        $field->setRelationship();
        $this->assertNull($field->relationship, 'Make sure that a random relationship does not create a relationship on the field.');
        $field->options['relationship'] = 'broken_relationship';
        $field->setRelationship();
        $this->assertNull($field->relationship, 'Make sure that a broken relationship does not create a relationship on the field.');
        $field->options['relationship'] = 'valid_relationship';
        $field->setRelationship();
        $this->assertFalse(!empty($field->relationship), 'Make sure that the relationship alias was not set without building a views query before.');
        // Remove the invalid relationship.
        unset($view->relationship['broken_relationship']);
        $view->build();
        $field->setRelationship();
        $this->assertEqual($field->relationship, $view->relationship['valid_relationship']->alias, 'Make sure that a valid relationship does create the right relationship query alias.');
    }
    
    /**
     * Tests the placeholder function.
     *
     * @see \Drupal\views\Plugin\views\HandlerBase::placeholder()
     */
    public function testPlaceholder() {
        $view = Views::getView('test_view');
        $view->initHandlers();
        $view->initQuery();
        $handler = $view->field['name'];
        $table = $handler->table;
        $field = $handler->field;
        $string = ':' . $table . '_' . $field;
        // Make sure the placeholder variables are like expected.
        $this->assertEqual($handler->getPlaceholder(), $string);
        $this->assertEqual($handler->getPlaceholder(), $string . 1);
        $this->assertEqual($handler->getPlaceholder(), $string . 2);
        // Set another table/field combination and make sure there are new
        // placeholders.
        $table = $handler->table = $this->randomMachineName();
        $field = $handler->field = $this->randomMachineName();
        $string = ':' . $table . '_' . $field;
        // Make sure the placeholder variables are like expected.
        $this->assertEqual($handler->getPlaceholder(), $string);
        $this->assertEqual($handler->getPlaceholder(), $string . 1);
        $this->assertEqual($handler->getPlaceholder(), $string . 2);
    }
    
    /**
     * Tests access to a handler.
     *
     * @see views_test_data_handler_test_access_callback
     */
    public function testAccess() {
        $view = Views::getView('test_handler_test_access');
        $views_data = $this->viewsData();
        $views_data = $views_data['views_test_data'];
        // Enable access to callback only field and deny for callback + arguments.
        $this->config('views_test_data.tests')
            ->set('handler_access_callback', TRUE)
            ->save();
        $this->config('views_test_data.tests')
            ->set('handler_access_callback_argument', FALSE)
            ->save();
        $view->initDisplay();
        $view->initHandlers();
        foreach ($views_data['access_callback'] as $type => $info) {
            if (!in_array($type, [
                'title',
                'help',
            ])) {
                $this->assertInstanceOf(HandlerBase::class, $view->field['access_callback']);
                $this->assertFalse(isset($view->field['access_callback_arguments']), 'Make sure the user got no access to the access_callback_arguments field ');
            }
        }
        // Enable access to the callback + argument handlers and deny for callback.
        $this->config('views_test_data.tests')
            ->set('handler_access_callback', FALSE)
            ->save();
        $this->config('views_test_data.tests')
            ->set('handler_access_callback_argument', TRUE)
            ->save();
        $view->destroy();
        $view->initDisplay();
        $view->initHandlers();
        foreach ($views_data['access_callback'] as $type => $info) {
            if (!in_array($type, [
                'title',
                'help',
            ])) {
                $this->assertFalse(isset($view->field['access_callback']), 'Make sure the user got no access to the access_callback field ');
                $this->assertInstanceOf(HandlerBase::class, $view->field['access_callback_arguments']);
            }
        }
    }

}