Do you test your code? Which tools you are using for test?

Answer 1

There are different unit test tools for different languages you mentioned. Like Junit and TestNg for Java and Nunit for c#, or Protractor, for testing Angular apps. But unit tests are mandatory for normal development in each language. There are side tools witch can help you with testing, like Mokito, or some BDD frameworks(also depending on language ).

Answer 2

And phpunit for php.