Thests.

Author: hjwp

preface.asciidoc

@@ -149,7 +149,8 @@ Come on, we can see what the right answer is, why don't we just skip to the end?
 Believe me, I second-guessed every rule, I suggested every shortcut,
 I demanded justifications for every seemingly pointless aspect of TDD,
 and I came out seeing the wisdom of it all.
-I've lost count of the number of times I've thought ``Thanks, tests'',
+I've lost count of the number of times I've thought ``Thanks, tests'',footnote:[
+https://www.youtube.com/watch?v=9jtU9BbReQk[Thests].]
 as a functional test uncovers a regression we would never have predicted,
 or a unit test saves me from making a really silly logic error.
 Psychologically, it's made development a much less stressful process.