normalizer.annotationBoundary(ANNOTATIONS2);
normalizer.annotationBoundary(ANNOTATIONS3);
normalizer.retain(1);
normalizer.annotationBoundary(ANNOTATIONS4);
normalizer.retain(1);
DocOp docOp = normalizer.finish();
DocOp expected = new DocOpBuilder()
.retain(1)
.annotationBoundary(ANNOTATIONS123)
.retain(1)
.annotationBoundary(ANNOTATIONS4)
.retain(1)