/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import * as path from 'path';
import * as Mocha from 'mocha';
import * as glob from 'glob';

export function run(): Promise<void> {
    // Create the mocha test
    const mocha = new Mocha({
        ui: 'tdd',
        reporter: 'mocha-jenkins-reporter',
        reporterOptions: {
            junit_report_name: 'Tests',
            junit_report_path: 'report.xml',
            junit_report_stack: 1,
        },
    });
    mocha.useColors(true);

    const testsRoot = path.resolve(__dirname, '..');

    return new Promise((c, e) => {
        glob('**/**.test.js', { cwd: testsRoot }, (err, files) => {
            if (err) {
                return e(err);
            }

            // Add files to the test suite
            files.forEach((f) => mocha.addFile(path.resolve(testsRoot, f)));

            try {
                // Run the mocha test
                mocha.run((failures) => {
                    if (failures > 0) {
                        e(new Error(`${failures} tests failed.`));
                    } else {
                        c();
                    }
                });
            } catch (err) {
                e(err);
            }
        });
    });
}