Sweep: prevent test console operations from showing up in output

[AlphaGit]

The console lines in the tests is creating confusion in understanding the output of the tests.

Modify the test files under the test/ directory so that the console.log, console.warn, console.debug and console.error usage in the main files (under /src) do not output anything while executing the tests.

The files that will need to be modified are test/generator.test.js and test/openai-client.test.js, which are the test files.

There's no need to modify productive code.