October 2024
Intermediate to advanced
270 pages
8h 13m
Spanish
Content preview from 97 cosas que todo programador Java debe saber
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Capítulo 2. Pruebas de homologación
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Emily Bache
¿Has escrito alguna vez una aserción de prueba con una expectativa ficticia o en blanco? Algo así
assertEquals("", functionCall())
Donde functionCall devuelve una cadena y no estás seguro de cuál debe ser exactamente esa cadena, pero sabrás que es correcta cuando la veas? Cuando ejecutas la prueba la primera vez, por supuesto, falla porque functionCall devuelve una cadena que no está vacía. (Puede que tengas que hacer varios intentos, hasta que el valor de retorno parezca correcto.) Entonces pegas este valor en lugar de la cadena vacía en assertEquals. Ahora la prueba debería pasar. ¡Resultado! Eso es lo que yo llamaría una prueba de aprobación.
El paso crucial aquí es cuando decides que el resultado es correcto y lo utilizas como valor esperado. "Apruebas" un resultado: es lo suficientemente bueno como para conservarlo. Supongo que habrás hecho este tipo de cosas sin pensar realmente en ello. Quizá lo llames de otra manera: es también llamado prueba de instantáneas o prueba maestra dorada. En mi experiencia, si tienes un marco de pruebas diseñado específicamente para soportarlo, entonces muchas cosas encajan y probar de esta manera resulta más fácil.
Con un marco de pruebas unitario clásico como JUnit, puede ser ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.