Introdução a testes

O básico sobre testes

Transcript

1. Testes
2. O que são testes? “Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test.” http://en.wikipedia.org/wiki/Software_testing
3. Por que testar?
6. Tipos de testes • Unidade • Integração • Funcional • Aceitação
7. 3 Leis do TDD 1. Você não pode escrever código de produção que não seja fruto de fazer passar um teste unitário que falha 2. Você não pode escrever num teste além do mínimo necessário para o teste falhar; e erros que compilação são falhas 3. Você não pode escrever código de produção que seja além do necessário para fazer o teste passar. Uncle Bob.
8. Vantagens sobre TDD: • 87.5% of developers reported better requirements understanding. • 95.8% of developers reported reduced debugging efforts. • 78% of developers reported TDD improved overall productivity. • 50% of developers found that it decreased overall development time. • 92% of developers felt that TDD yielded high-quality code. • 79% of developers believed TDD promoted simpler design.
9. Desvantagens • 40% of developers found adoption of TDD was difficult. • 16% increase in development time of projets. http://weblogs.asp.net/mhawley/archive/2004/04/15/114005.aspx
10. TDD
11. TDD
12. TDD
13. TDD
14. Exemplo ….
15. Material http://www.infoq.com/br/articles/levison-TDD-adoption-strategy/ http://desenvolvimentoagil.com.br/ http://www.infoq.com/br/news/2009/11/uncle-bob-tdd-applicability http://www.infoq.com/news/2009/03/TDD-Improves-Quality http://www.alexbolboaca.ro/wordpress/articles/does-tdd-really-work http://www.ijsce.org/attachments/File/v3i1/A1351033113.pdf [Comparative Study of Test Driven Development with Traditional Techniques] http://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1027&context=csse_fac http://www.infoq.com/br/presentations/quase-todas-abordagens-testes-agil http://www.infoq.com/br/presentations/storyboards-kanban-testes http://www.infoq.com/br/presentations/o-que-nao-testar http://pt.slideshare.net/mauricioaniche http://www.infoq.com/br/search.action?queryString=tdd&page=1&searchOrder= http://www.aniche.com.br/category/blog/ http://www.infoq.com/br/news/2010/08/por-onde-comecar-meus-testes/ http://www.infoq.com/br/presentations/dnad-mauricio-aniche http://www.infoq.com/br/articles/relacao-tdd-qualidade http://www.infoq.com/br/tdd
18. Dúvidas?