.DataAugmentationtestprojective

			testprojective(tfm)

Test invariants of a ProjectiveTransform.

1. getprojection is defined, and, given a constant randstate parameter, always returns the same result.

2. It preserves the item type, i.e. apply(tfm, ::I) -> I.

3. Applying it to multiple items with the same bounds results in the same bounds for all items.