tests: Fix error in test_preprocessor_cur (xrange -> range)
tests: Fix error in test_preprocessor_cur (xrange -> range)

cheral/orange3,qPCR4vir/orange3,qPCR4vir/orange3,qPCR4vir/orange3,cheral/orange3,cheral/orange3,cheral/orange3,qPCR4vir/orange3,cheral/orange3,qPCR4vir/orange3,qPCR4vir/orange3,cheral/orange3