This PR retains the image testing infrastructure, but just allows all image tests to pass. The test message has been updated to simply report how far the rendered image is from the baseline. These are being kept as a sanity checking mechanism.
To replace some thrust of the image testing functionality, the unit tests have been extended to render each vis that used to be image tested, and asssert some things about its HTML structure, etc.
This PR retains the image testing infrastructure, but just allows all image tests to pass. The test message has been updated to simply report how far the rendered image is from the baseline. These are being kept as a sanity checking mechanism.
To replace some thrust of the image testing functionality, the unit tests have been extended to render each vis that used to be image tested, and asssert some things about its HTML structure, etc.