Drawing rgba(0, 255, 0, 0.5) (should be [0, 255, 0, 128] if non-premultiplied, and [0, 128, 0, 128] if premultiplied)

getImageData returns ???

Drawing a correct non-ImageData object: (should be yellow-blue gradient if it works)

Drawing with {0:r, 1:g, 2:b, ...} instead of [r, g, b, ...]: (should be yellow-blue gradient if it works)

Drawing with too small an array:

Drawing with too large an array:

Drawing with clipping: (should be yellow-blue gradient if it's not clipped)

Drawing out-of-range colour values: (gives multiple stripes if it the value gets wrapped instead of clamped)

Rounding non-integer values:

Handling invalid colour components:

Weird corruption in FF2 on Linux: