tree fb001632211c8183ad17dd88aec05a1885981822
parent 658665dd51bf750a0421af99324afa3d97828959
author Cheng-Yi Chiang <cychiang@chromium.org> 1466591375 +0800
committer chrome-bot <chrome-bot@chromium.org> 1466768178 -0700

[autotest] chameleon: Move comparison method to audio_test_utils

This patch does following refactoring:
1. Move compare_recorded_result from chameleon_audio_helper to
audio_test_utils, and rename it to compare_recorded_correlation.
2. Remove 'method' argument because correlation is the only method.
There is another frequency comparison function to call.
3. Cleanup legacy frequency comparison method because now we use
spectral analysis method instead.
4. Raise error.TestFail with error messages when comparison fails.

BUG=chromium:620930
TEST=run audio_AudioBasicHDMI, audio_AudioBasicUSBPlayback,
audio_AudioBasicUSBPlaybackRecord, audio_AudioBasicUSBRecord test on
samus.

Change-Id: I5e9a4cb323e21af013314385b10b1fabc2dfa50e
Reviewed-on: https://chromium-review.googlesource.com/354892
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Kalin Stoyanov <kalin@chromium.org>