tree 2f1191e7b785fafdad80bf9097ec79525c509f76
parent f0f94d6532ff65c3e521a9851676fda2bce8de32
author wub <wub@google.com> 1575911758 -0800
committer Copybara-Service <copybara-worker@google.com> 1575911793 -0800

gfe-relnote: For QUIC BBR tests, add the ability to save test results and compare with saved results. Test only, not protected.

Note for Chromium/Envoy merge: quic_test_output_impl.(h|cc) needs to implement two functions:
1) QuicSaveTestOutputImpl: Can be implemented as a call to QuicRecordTestOutputToFile.
2) QuicLoadTestOutputImpl: Can be implemented using platform-specific file read apis. For example: use base::ReadFileToString in Chromium.

Usage:
$ blaze build third_party/quic/core/congestion_control:bbr_sender_test

// Save test results(one file per test) to <some directory>
$ QUIC_TEST_OUTPUT_DIR=<some directory> blaze-bin/third_party/quic/core/congestion_control/bbr_sender_test --quic_bbr_test_regression_mode=record

// Compare with test results in <some directory>, test fails if e.g. a test takes longer than the duration recorded in test results.
$ QUIC_TEST_OUTPUT_DIR=<some directory> blaze-bin/third_party/quic/core/congestion_control/bbr_sender_test --quic_bbr_test_regression_mode=regress

PiperOrigin-RevId: 284566985
Change-Id: I9610766cde7d014d2ddcdb629cd83626362af8d6