Create test for feed-parser

[Immutablevoid]

A test is needed for feed-parser once #37 is merge. You can start working on this now, can be a basic check to see if feed-parser returns values.

Can check if the feed-parser is able to parser these blogs below:

• Blogger
• Medium
• Wordpress

feed-queue.test.js can also be removed once some actual tests are added since the test doesn't accomplish much #55.

This doesn't need to be all implemented in one pull request, can be separated into multiple issues.

Test are written in Jest.
Commands to run test: npm test or npm run jest

Save test under test folder.
Save test as testname.test.js replacing testname with the name of your test.

[nazneennahar]

hey i would wanna work on this issue.

Thanks.