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134 lines
4.7 KiB
Markdown
134 lines
4.7 KiB
Markdown
---
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id: unit-testing
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title: "Tests Unitarios"
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---
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Todos los tests están divididos entre tres carpetas:
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- `test/unit` - Tests que cubren funciones que transforman datos de forma no-trivial. Estos tests simplemente `require()` (requieren de) algunos archivos y código de ejecución, por lo que son muy rápidos.
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- `test/functional` - Tests que ejecutan una instancia de verdaccio y realizan una serie de peticiones a esta sobre http. Son de mayor lentitud en comparación a los tests unitarios.
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- `test/integration` - Tests que ejecutan una instancia de verdaccio y realizan peticiones a esta usando npm. Son considerablemente lentas y pueden incidir sobre un registro real de npm. **test sin mantenimiento**
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Los tests de tipo unit y functional son ejecutados automáticamente al correr `npm test` desde el directorio raiz del proyecto. Los tests de tipo integration se suponen deben ser ejecutados de forma manual ocasionalmente.
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Utilizamos `jest` para todos los tests.
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## El Script npm
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Para ejecutar el script de test puedes utilizar tanto `npm` como `yarn`.
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yarn run test
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Esto accionará solo los primeros dos grupos de tests, unit y funtional.
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### Usando test/unit
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El siguiente es simplemente un ejemplo de cómo se debe ver un test unitario. Básicamente, sigue el estandar `jest`.
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Intenta describir exactamente qué hace el test unitario en una sola frase en el encabezado de la sección `test`.
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```javacript
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const verdaccio = require('../../src/api/index');
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const config = require('./partials/config');
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describe('basic system test', () => {
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beforeAll(function(done) {
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// algo importante
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});
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afterAll((done) => {
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// deshacer algo importante
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});
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test('server should respond on /', done => {
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// tu test
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done();
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});
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});
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```
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### Usando test/functional
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Los tests functionales en verdaccio acarrean un mayor nivel de complejidad que amerita una explicación profunda para asegurar el éxito de tu experiencia.
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Todo inicia en el archivo `index.js`. Adentrémosnos en este.
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```javascript
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// creamos tres instancias de servidores
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const config1 = new VerdaccioConfig(
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'./store/test-storage',
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'./store/config-1.yaml',
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'http://localhost:55551/');
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const config2 = new VerdaccioConfig(
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'./store/test-storage2',
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'./store/config-2.yaml',
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'http://localhost:55552/');
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const config3 = new VerdaccioConfig(
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'./store/test-storage3',
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'./store/config-3.yaml',
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'http://localhost:55553/');
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const server1: IServerBridge = new Server(config1.domainPath);
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const server2: IServerBridge = new Server(config2.domainPath);
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const server3: IServerBridge = new Server(config3.domainPath);
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const process1: IServerProcess = new VerdaccioProcess(config1, server1, SILENCE_LOG);
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const process2: IServerProcess = new VerdaccioProcess(config2, server2, SILENCE_LOG);
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const process3: IServerProcess = new VerdaccioProcess(config3, server3, SILENCE_LOG);
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const express: any = new ExpressServer();
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...
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// revisamos si todas las instancias han sido iniciadas, desde su ejecución en procesos independientes
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beforeAll((done) => {
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Promise.all([
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process1.init(),
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process2.init(),
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process3.init()]).then((forks) => {
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_.map(forks, (fork) => {
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processRunning.push(fork[0]);
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});
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express.start(EXPRESS_PORT).then((app) =>{
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done();
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}, (err) => {
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done(err);
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});
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}).catch((error) => {
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done(error);
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});
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});
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// al finalizarlas, nos aseguramos de que han sido detenidas
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afterAll(() => {
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_.map(processRunning, (fork) => {
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fork.stop();
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});
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express.server.close();
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});
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```
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### Uso
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Aquí describiremos cómo se ve un test funcional típico, revise en línea para información más detallada.
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#### El lib/server.js
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La clase de servidor es tan solo un wrapper que simula un cliente `npm` y proporciona un API simple para el test funcional.
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Como mencionamos en la sección previa, estamos creando 3 servidores de proceso que son accesibles en cada proceso como `server1`, `server2` y ``server3`.
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Usando dichas referencias serás capaz de enviar peticiones a cualquiera de las 3 instancias en ejecución.
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```javascript
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<br />export default function(server) {
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// recibimos cualquier instancia de servidor a través de argumentos
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test('add tag - 404', () => {
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// interactuamos con la instancia de servidor.
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return server.addTag('testpkg-tag', 'tagtagtag', '0.0.1').status(404).body_error(/no such package/);
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});
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});
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```
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### Test/integration
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Esta sección no ha sido usada jamás, pero estamos buscando ayuda con la intención de poder ejecutarla apropiadamente. **Toda idea nueva es bastante bienvenida.** |