[audiobuffer-copy-channel.html]
  expected: ERROR
  [X 3: buffer.copyFromChannel(x, -1) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 4: buffer.copyFromChannel(x, 3) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 5: buffer.copyFromChannel(x, 0, -1) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 6: buffer.copyFromChannel(x, 0, 16) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 7: buffer.copyFromChannel(x, 3) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [< [copyFrom-exceptions\] 5 out of 9 assertions were failed.]
    expected: FAIL

  [X 2: buffer.copyToChannel(x, -1) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 3: buffer.copyToChannel(x, 3) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 4: buffer.copyToChannel(x, 0, -1) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 5: buffer.copyToChannel(x, 0, 16) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [X 6: buffer.copyToChannel(x, 3) threw "NotSupportedError" instead of IndexSizeError.]
    expected: FAIL

  [< [copyTo-exceptions\] 5 out of 8 assertions were failed.]
    expected: FAIL

