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Daniel Nephin e8312d6b5a testing: remove unnecessary calls to freeport Previously we believe it was necessary for all code that required ports to use freeport to prevent conflicts. https://github.com/dnephin/freeport-test shows that it is actually save to use port 0 (`127.0.0.1:0`) as long as it is passed directly to `net.Listen`, and the listener holds the port for as long as it is needed. This works because freeport explicitly avoids the ephemeral port range, and port 0 always uses that range. As you can see from the test output of https://github.com/dnephin/freeport-test, the two systems never use overlapping ports. This commit converts all uses of freeport that were being passed directly to a net.Listen to use port 0 instead. This allows us to remove a bit of wrapping we had around httptest, in a couple places.	2021-11-29 12:19:43 -05:00
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testing.go	…

Daniel Nephin e8312d6b5a testing: remove unnecessary calls to freeport

Previously we believe it was necessary for all code that required ports
to use freeport to prevent conflicts.

https://github.com/dnephin/freeport-test shows that it is actually save
to use port 0 (`127.0.0.1:0`) as long as it is passed directly to
`net.Listen`, and the listener holds the port for as long as it is
needed.

This works because freeport explicitly avoids the ephemeral port range,
and port 0 always uses that range. As you can see from the test output
of https://github.com/dnephin/freeport-test, the two systems never use
overlapping ports.

This commit converts all uses of freeport that were being passed
directly to a net.Listen to use port 0 instead. This allows us to remove
a bit of wrapping we had around httptest, in a couple places.

2021-11-29 12:19:43 -05:00

testing.go

…