class TagTest

class TagTest extends ViewsKernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'views',
        'views_ui',
        'user',
    ];
    
    /**
     * Tests the ViewsUIController::autocompleteTag() function.
     */
    public function testViewsUiAutocompleteTag() {
        \Drupal::moduleHandler()->loadInclude('views_ui', 'inc', 'admin');
        // Save 15 views with a tag.
        $tags = [];
        for ($i = 0; $i < 16; $i++) {
            $suffix = $i % 2 ? 'odd' : 'even';
            $tag = 'autocomplete_tag_test_' . $suffix . $this->randomMachineName();
            $tags[] = $tag;
            View::create([
                'tag' => $tag,
                'id' => $this->randomMachineName(),
            ])
                ->save();
        }
        // Make sure just ten results are returned.
        $controller = ViewsUIController::create($this->container);
        $request = $this->container
            ->get('request_stack')
            ->getCurrentRequest();
        $request->query
            ->set('q', 'autocomplete_tag_test');
        $result = $controller->autocompleteTag($request);
        $matches = (array) json_decode($result->getContent(), TRUE);
        $this->assertCount(10, $matches, 'Make sure the maximum amount of tag results is 10.');
        // Make sure the returned array has the proper format.
        $suggestions = array_map(function ($tag) {
            return [
                'value' => $tag,
                'label' => Html::escape($tag),
            ];
        }, $tags);
        foreach ($matches as $match) {
            $this->assertContains($match, $suggestions, 'Make sure the returned array has the proper format.');
        }
        // Make sure that matching by a certain prefix works.
        $request->query
            ->set('q', 'autocomplete_tag_test_even');
        $result = $controller->autocompleteTag($request);
        $matches = (array) json_decode($result->getContent(), TRUE);
        $this->assertCount(8, $matches, 'Make sure that only a subset is returned.');
        foreach ($matches as $tag) {
            $this->assertContains($tag['value'], $tags);
        }
        // Make sure an invalid result doesn't return anything.
        $request->query
            ->set('q', $this->randomMachineName());
        $result = $controller->autocompleteTag($request);
        $matches = (array) json_decode($result->getContent());
        $this->assertCount(0, $matches, "Make sure an invalid tag doesn't return anything.");
    }
    
    /**
     * Tests that comma delimited tags are treated as individual tags.
     *
     * @dataProvider providerViewsUiAutocompleteIndividualTags
     */
    public function testViewsUiAutocompleteIndividualTags($expected_tag, $search_string) {
        $controller = ViewsUIController::create($this->container);
        $request = $this->container
            ->get('request_stack')
            ->getCurrentRequest();
        $tag = 'comma, 你好, Foo bar';
        View::create([
            'tag' => $tag,
            'id' => $this->randomMachineName(),
        ])
            ->save();
        $request->query
            ->set('q', $search_string);
        $result = $controller->autocompleteTag($request);
        $matches = (array) json_decode($result->getContent());
        $this->assertCount(1, $matches);
        $this->assertSame($expected_tag, $matches[0]->value);
    }
    
    /**
     * Data provider for testViewsUiAutocompleteIndividualTags().
     *
     * @return array[]
     *   The data set.
     */
    public function providerViewsUiAutocompleteIndividualTags() {
        return [
            'tag' => [
                'comma',
                'comma',
            ],
            'case insensitive tag' => [
                'comma',
                'COMMA',
            ],
            'Hello in Chinese (partial 1)' => [
                '你好',
                '你',
            ],
            'Hello in Chinese (partial 2)' => [
                '你好',
                '好',
            ],
            'Hello in Chinese' => [
                '你好',
                '你好',
            ],
            'Starts with partial and case-sensitive' => [
                'Foo bar',
                'Foo',
            ],
            'Starts with partial and case-insensitive' => [
                'Foo bar',
                'fOO',
            ],
            'Ends with partial and case-sensitive' => [
                'Foo bar',
                'bar',
            ],
            'Ends with partial and case-insensitive' => [
                'Foo bar',
                'BAR',
            ],
        ];
    }

}