While we might never be able to have 100% of our code strict, we can at
the very least do it for all of our tests. This ensures that our tests
are using our API with the types as intended by the test author, and not
silently be cast to what our API requires.
* Additional Coverage for Reader Xls
More than 750 lines are newly covered, increasing overall coverage on my machine from 91.14% to 93.09%.
* Update FormulasTest.php
oleibman
Adrien Crivelli
MarkBaker