def test_toImages(self):
from lambdaimage.rdds.images import Images
rdd = self.sc.parallelize([((0, 0), array([1])), ((0, 1), array([2])),
((1, 0), array([3])), ((1, 1), array([4]))])
data = Series(rdd)
imgs = data.toImages()
assert(isinstance(imgs, Images))
im = imgs.values().first()
assert(allclose(im, [[1, 2], [3, 4]]))
