add packing & unpacking tests

pylastests/test_packing.py

@@ -0,0 +1,24 @@
+import numpy as np
+
+from pylastests.test_common import las
+
+las = las
+
+
+def test_unpacking(las):
+    packed_points = las.points_data
+    unpacked_points = packed_points.to_unpacked()
+
+    assert packed_points.point_format.dimension_names == unpacked_points.point_format.dimension_names
+    for dim_name in unpacked_points.point_format.dimension_names:
+        assert np.allclose(packed_points[dim_name], unpacked_points[dim_name])
+
+
+def test_packing(las):
+    packed_points = las.points_data
+    unpacked_points = packed_points.to_unpacked()
+    repacked_points = unpacked_points.to_packed()
+
+    assert packed_points.point_format.dimension_names == repacked_points.point_format.dimension_names
+    for dim_name in repacked_points.point_format.dimension_names:
+        assert np.allclose(packed_points[dim_name], repacked_points[dim_name])