tonihei 2e81186a33 Add timeout to TestExoPlayer runUntil methods.
If the condition isn't fulfilled, they currently block until the
test runner times out the test. Our usual approach is to timeout
in the test itself so that the error message is clearly showing the
blocked condition.

Also clean-up some documentation.

PiperOrigin-RevId: 309930198
2020-05-05 18:38:41 +01:00
..