Added phpunit as dev dependancy

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Added methods to fetch the private class members.

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Initial phpunit test setup

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Changed Test Fixture

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Added tests for various types of hex inputs

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Fixed tests that need multiple asserts

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Changed Input Test to Hex Input Test

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>
Added alpha tests to hex tests

Signed-off-by: Jake Wilson <jake.e.wilson@gmail.com>