add information for leaking domain details

sarven · sarven · commit 7fa071af61d2 · 2021-02-26T19:56:49.000+01:00
diff --git a/README.md b/README.md
@@ -1957,6 +1957,8 @@ final class ValidTest extends TestCase
 }
 ```
 
+:information_source: Don't duplicate the production logic in tests. Just verify results by hardcoded values.
+
 ### Mocking concrete classes
 
 :x: Bad:

Original file line number	Diff line number	Diff line change
`@@ -1957,6 +1957,8 @@ final class ValidTest extends TestCase`
`1957`	`1957`	`}`
`1958`	`1958`	```
`1959`	`1959`
	`1960`	`+:information_source: Don't duplicate the production logic in tests. Just verify results by hardcoded values.`
	`1961`	`+`
`1960`	`1962`	`### Mocking concrete classes`
`1961`	`1963`
`1962`	`1964`	`:x: Bad:`