TST: spatial: Don't use 'import *'. Don't use plain 'assert'. Remove duplicated tests. Rename tests that were different but had the same name.
TST: spatial: Don't use 'import *'. Don't use plain 'assert'. Remove duplicated tests. Rename tests that were different but had the same name.

datamade/hcluster,datamade/hcluster,datamade/hcluster