if (!e.finishedLines()) do {
assertFalse(a.finishedLines());
if (!e.finishedPixels()) do {
assertFalse(a.finishedPixels());
if (!e.finishedBands()) do {
assertFalse(a.finishedBands());
final float pe = e.getSampleFloat();
final float pa = a.getSampleFloat();
assertEquals(pe, pa, EPS);
a.nextBand();
} while (!e.nextBandDone());