Comparisons should account for instantaneous test execution

The comparisons for the Revoke tests were greater than or less than, but if the test
did not take a full clock tick, the values could be equal.

Closes-Bug: 1295261

Change-Id: I7526640c283f13a4e4ed4f0b0ebd059bbe38ad9b
Merge "Comparisons should account for instantaneous test execution"