Create more tests

* Added tests for readPageJs and readPageCss
* Use better formatting for tests, cerated submethod
6 jobs for moreReadTests in 2 minutes and 23 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #1879
lint:lint-php5.4

00:00:42

passed #1880
lint:lint-php5.6

00:00:42

passed #1881
lint:lint-php7.0

00:00:41

passed #1882
lint:lint-php7.1

00:00:26

 
  Codesniffer
passed #1883
codesniffer

00:00:31

 
  Unit
passed #1884
unit:testRead

00:00:43