BuildConfigManager.spec.js

const { promisify } = require('util');

const BuildConfigManager = require('./BuildConfigManager');

const cwd = process.cwd();

describe('BuildConfigManager integration tests', () => {
    afterEach(() => {
        jest.restoreAllMocks();
    });

    describe('constructor', () => {
        it('should return an instance with correct watchOptions taken from the config file', () => {
            const buildConfig = new BuildConfigManager({
                workDir: `${cwd}/test/_mocks/build-config/valid-config`,
            });

            expect(buildConfig.watchOptions).toBeInstanceOf(Object);
            expect(buildConfig.watchOptions.files).toBeInstanceOf(Array);
            expect(buildConfig.watchOptions.ignored).toBeInstanceOf(Array);
        });
    });

    describe('production method', () => {
        it('should resolve successfully for "valid-config"', async () => {
            const buildConfig = new BuildConfigManager({
                workDir: `${cwd}/test/_mocks/build-config/valid-config`,
            });
            buildConfig.initWorker();

            expect(buildConfig.production).toBeInstanceOf(Function);

            await promisify(buildConfig.production.bind(buildConfig))();

            buildConfig.stopWorker();
        });

        it('should resolve successfully for "legacy-config"', async () => {
            const buildConfig = new BuildConfigManager({
                workDir: `${cwd}/test/_mocks/build-config/legacy-config`,
            });
            buildConfig.initWorker();

            expect(buildConfig.production).toBeInstanceOf(Function);

            await promisify(buildConfig.production.bind(buildConfig))();

            buildConfig.stopWorker();
        });

        it('should reject with "worker terminated" message for "noworker-config"', async () => {
            const buildConfig = new BuildConfigManager({
                workDir: `${cwd}/test/_mocks/build-config/noworker-config`,
            });

            const initedBuildConfig = buildConfig.initWorker();

            expect(buildConfig.production).toBeInstanceOf(Function);

            await expect(
                promisify(initedBuildConfig.production.bind(initedBuildConfig))(),
            ).rejects.toContain('worker terminated');

            buildConfig.stopWorker();
        });
    });

    describe('development method', () => {
        it('should reload the browser when a message "reload" is received from stencil.conf.js (valid-config)', async () => {
            const buildConfig = new BuildConfigManager({
                workDir: `${cwd}/test/_mocks/build-config/valid-config`,
            });

            expect(buildConfig.development).toBeInstanceOf(Function);

            await new Promise((done) => buildConfig.initWorker().development({ reload: done }));

            buildConfig.stopWorker();
        });

        it('should reload the browser when "reload" method is called from stencil.conf.js (legacy-config)', async () => {
            const buildConfig = new BuildConfigManager({
                workDir: `${cwd}/test/_mocks/build-config/legacy-config`,
            });

            expect(buildConfig.development).toBeInstanceOf(Function);

            await new Promise((done) => buildConfig.initWorker().development({ reload: done }));

            buildConfig.stopWorker();
        });
    });
});