class ReportFieldsTest

class ReportFieldsTest extends UITestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_field_field_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'entity_test',
    ];
    
    /**
     * Tests the Views fields report page.
     */
    public function testReportFields() {
        $this->drupalGet('admin/reports/fields/views-fields');
        $this->assertSession()
            ->pageTextContains('Used in views');
        $this->assertSession()
            ->pageTextContains('No fields have been used in views yet.');
        // Set up the field_test field.
        $field_storage = FieldStorageConfig::create([
            'field_name' => 'field_test',
            'type' => 'integer',
            'entity_type' => 'entity_test',
        ]);
        $field_storage->save();
        $field = FieldConfig::create([
            'field_name' => 'field_test',
            'entity_type' => 'entity_test',
            'bundle' => 'entity_test',
        ]);
        $field->save();
        // Assert that the newly created field appears in the overview.
        $this->drupalGet('admin/reports/fields/views-fields');
        $this->assertSession()
            ->responseContains('<td>field_test</td>');
        $this->assertSession()
            ->responseContains('>test_field_field_test</a>');
        $this->assertSession()
            ->pageTextContains('Used in views');
    }

}