r.cross: added testsuite for r.cross tool #4707
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Added Tests for
r.cross
ModuleDescription:
Maps:
map1
contains categories 1, 2, 3 (rows);map2
contains categories 1, 2, NULL(columns).Basic Test: Verifies correct category generation, including combinations with NULL values.
-z
Flag Test: Ensures exclusion of NULL values in cross-product categories.