documentation

Author: kandros

book/types-of-test.md

@@ -16,14 +16,16 @@
 
 ### Testing Pyramid
 
-The testing pyramid aims to resume the cost of every kind of test. The classic one is the following
+The "Test Pyramid" is a famous metaphor in the programming world about the cost-effort of diffent types of testing and how much of each should be present in a codebase (where the top very expensive and the bottom less expensive)
 
 <div>
     <img src="../assets/images/test-pyramid.png" alt="Testing pyramid" style="width: 100%; max-width: 400px; margin-left: auto; margin-right: auto;"/>
 </div>
 <br /><br />
 
-while Kent C. Dodds created a new version of the pyramid, the "the Testing Trophy". Kent created the trophy based not only on the cost of the tests but on the **return of investment**. Then, he highlighted the "Integration test" area as the most important one
+While the Testing Pyramid idea has been based on solid arguments, it's foundation considered non cost-effective UI and (most) integration tests due to high cost of development and maintainance but this idea predates most of recent discoveries and tools in testing that are now available.
+
+Kent C. Dodds created a new version of the pyramid, the "the Testing Trophy". Kent created the trophy based not only on the cost of the tests but on the **return of investment**. He highlighted the "Integration test" area as the most important one
 
 <div>
     <img src="../assets/images/test-trophy.jpg" alt="Testing trophy" style="width: 100%; max-width: 400px; margin-left: auto; margin-right: auto;"/>