Integration testing Memes

The sink works perfectly! The water flows through the faucet and... straight into the floor. Classic example of unit testing in software development – each component works flawlessly in isolation, but nobody bothered to check if they actually work together . The plumbing equivalent of "it works on my machine!" Sure, your authentication module passes all tests, but did anyone check if it actually talks to the database? This is why integration testing exists, folks – because passing unit tests is the programming equivalent of participation trophies.

The classic developer delusion: your code is invincible because it passed some pathetic little tests on your machine. Then reality hits when the CI pipeline runs and suddenly your precious code is getting absolutely demolished by tests in a different environment. It's the programming equivalent of practicing karate moves in your bedroom mirror vs. getting roundhouse kicked in an actual fight. "But it worked on MY machine" - the battle cry of the defeated developer since time immemorial.