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Adds a custom test_main and renames the test suite for jitter_drift. Runs the jitter_drift test suite. The order of these tests matter on hardware as the counter is often reset on loading the test program. This is useful as its far less likely to encounter a clock counter rollover. On arm this is especially useful. Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
# Test a timer implementations variance and long term drift Records and calculates statistical values against a timer validating that. 1. Timer variance and standard deviation is below defined acceptable values. 2. Periodic timers do not drift in either direction from expected total time. Timers are meant to be precise and accurate. This test validates an implementation is both.