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Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

TestTimeSource()

A time source that has programmatically updatable readings. It is useful as a predictable source of time in tests.

The current reading value can be advanced by the specified duration amount with the operator plusAssign:

val timeSource = TestTimeSource()
timeSource += 10.seconds

Implementation note: the current reading value is stored as a Long number of nanoseconds, thus it's capable to represent a time range of approximately ±292 years. Should the reading value overflow as the result of plusAssign operation, an IllegalStateException is thrown.