This test performs animations of the left property on two boxes over 2 seconds. It takes 3 snapshots each and expects each result to be within a specified range.
PASS - "left" property for "box1" element at 0.4s saw something close to: 20
PASS - "left" property for "box2" element at 0.5s saw something close to: 20
PASS - "left" property for "box2" element at 1s saw something close to: 30
PASS - "left" property for "box1" element at 1.2s saw something close to: 10
PASS - "left" property for "box2" element at 1.5s saw something close to: 25
PASS - "left" property for "box1" element at 1.6s saw something close to: 15