Write tests for all languages

[roerohan]

Write tests for all languages

Currently, code-executor supports all languages mentioned in src/langs. There are no script yet to test if these languages work properly. You can add tests in test for each language.

Proposed structure

• Each language has a folder inside test, the name of the folder is the name of the language
• There are two scripts in each folder, one for master and one for the worker.

You might consider using a testing library such as mocha or chai. However, for this, timeouts need to be configured properly since these tests will be running on Github Actions in the future. Nonetheless, adding a unit testing library for each language is not a priority right now, verifying that the Dockerfiles for all the languages work can be done with or without mocha or chai.

[ashikka]

I'll do this, @alias-rahil can you assign this to me?