[5.0] Separe unit test

[ericktucto]

Separating unit tests for the InteractsWithPages and MakesHttpRequests class

On MakesHttpRequestsTest, the methods:

• prepareUrlForRequest
• seeStatusCode
• assertResponseOk
• assertResponseStatus

belong to MakesHttpRequests class and the rest of the methods belong to InteractsWithPages

Changes to be committed: copied: tests/Unit/MakesHttpRequestsTest.php -> tests/Unit/InteractsWithPagesTest.php modified: tests/Unit/MakesHttpRequestsTest.php

I moved assertPageLoaded_throw_exception_with_response_exception to InteractsWithPagesTest class