Move assert to GeneticMap class

python/tests/beagle_numba.py

@@ -25,7 +25,12 @@ class GeneticMap:
     gen_pos: np.ndarray
 
     def __post_init__(self):
-        assert len(self.base_pos) == len(self.gen_pos)
+        assert len(self.base_pos) == len(
+            self.gen_pos
+        ), "Lists of physical positions and genetic map positions differ in length."
+        assert (
+            self.base_pos[1:] > self.base_pos[:-1]
+        ), "Physical positions not in strict ascending order."
 
 
 def convert_to_genetic_map_positions(pos, genetic_map=None):
@@ -66,8 +71,6 @@ def convert_to_genetic_map_positions(pos, genetic_map=None):
             left_idx[i]
         ]  # Genetic map position at right of marker i.
         assert pos[i] >= a, f"Query position not >= left-bound position: {pos[i]}, {a}."
-        # TODO: Assert when instantiating GeneticMap.
-        assert b > a, f"Physical positions not in strict ascending order: {b}, {a}."
         assert (
             fb >= fa
         ), f"Genetic map positions not in monotonically ascending order: {fb}, {fa}."