# note: An ALPH chunk placed after the image chunk instead of before it.
# expect: ok
# exercises: ParseOptionalChunks() stops at the first VP8 chunk, so an ALPH
#   behind it is never seen and the picture decodes fully opaque. Ordering is
#   not diagnosed, it is silently obeyed -- which the all-255 alpha in the hash
#   is what records.
chunks VP8X VP8 ALPH
alpha 1
width 16
height 16
yac_qi 30
macroblock
coeffs y2 -20
coeffs y[2] 1:5 -3