Chinmay Garde f5ae64f523 Add test to ensure that concurrent message loops have at least one workers. (flutter/engine#16074)
The current count is determined from std:🧵:hardware_concurrency which can
return zero. Even in such cases, the implementation may not return a loop with
no workers. There are numerous components that depend on having non-zero workers
in the queue.
2020-01-28 11:29:42 -08:00
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