Smoke Testing vs Sanity Testing: Whatโs the Difference? ๐ฅ๐ง
Hey QA fam! ๐ Ever been asked in an interview about the difference between smoke and sanity testing? Itโs a classic question! They sound similar, but theyโre actually different. Hereโs the quick breakdown: Smoke Testing ๐ฅ Think: โDoes this thing even turn on?โ Itโs a broad but shallow check to see if your appโs critical functions work at all. When to run it: โข Right after a new build drops โข Before starting detailed testing What youโre checking: โข Can users log in? โข Does the homepage load? โข Do critical workflows start? Example: New build deployed โ Quick smoke test checks login, navigation, basic functionality โ If it fails, reject the build immediately. Sanity Testing ๐ง Think: โDid that bug fix actually work?โ Itโs a narrow but deeper check on specific functionality after a bug fix or small change. When to run it: โข After a bug fix โข After a minor code change What youโre checking: โข Did the bug get fixed? โข Do related features still work? Example: Dev fixed the โForgot Passwordโ link โ Sanity test verifies the fix works and didnโt break related login features. Quick Comparison ๐ Smoke Testing: โข Broad and shallow โข Tests build stability โข After new build โข Accept/reject build Sanity Testing: โข Narrow and deep โข Tests specific functionality โข After bug fix โข Accept/reject fix The Easy Way to Remember ๐ Smoke Test: Walking through a house checking if lights work, doors open, water runs. Basic stuff! Sanity Test: Going back to check if that leaky faucet the seller โfixedโ actually works now. Bottom Line ๐ฏ โข Smoke testing = โIs this build stable enough to test?โ โข Sanity testing = โDid that fix actually work?โ Use both strategically and youโll save tons of time! Happy Testing! ๐ Your turn: Which one do you use most in your projects? Drop a comment! ๐ฌ