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tokio/tests-build
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Steven Fackler fcb6d041b9
time: make test-util paused time fully deterministic (#3492) 
The time driver stores an Instant internally used as a "base" for future
time calculations. Since this is generated as the Runtime is being
constructed, it previously always happened before the user had a chance
to pause time. The fractional-millisecond variations in the timing
around the runtime construction and time pause cause tests running
entirely in paused time to be very slightly deterministic, with the time
driver advancing time by 1 millisecond more or less depending on how the
sub-millisecond components of the `Instant`s involved compared.

To avoid this, there is now a new option on `runtime::Builder` which
will create a `Runtime` with time "instantly" paused. This, along with a
small change to have the time driver use the provided clock as the
source for its start time allow totally deterministic tests with paused
time.
2021-02-05 20:12:25 +01:00
..
src
ci: bring back build tests (#1813)
2019-11-22 14:38:49 -08:00
tests
time: make test-util paused time fully deterministic (#3492)
2021-02-05 20:12:25 +01:00
Cargo.toml
rt: simplify rt-* features (#2949)
2020-10-12 14:13:23 -07:00
README.md
ci: bring back build tests (#1813)
2019-11-22 14:38:49 -08:00

README.md

Tests the various combination of feature flags. This is broken out to a separate crate to work around limitations with cargo features.