Wait for network to resume in ConcurrencyTest

so that subsequent tests would not fail due to lack of network
connection.

Bug: 26182816
Change-Id: I6bc89897c9ad8e5966f03db7fc72169d3b973e53
1 file changed
tree: 83e8975f0c024abb8028215d046b572fb311ebb1
  1. tests/