add another test without subsampling-cell-size set

Author: JanCaha

tests/test_compare.py

@@ -42,3 +42,41 @@ def test_compare(autzen_2010_file: str, autzen_2023_file: str):
     values = pipeline.arrays[0]["m3c2_distance"]
     assert values.min() == pytest.approx(-3.227012699417537, abs=1e-15)
     assert values.max() == pytest.approx(4.87166403256035, abs=1e-15)
+
+
+@pytest.mark.skipif(pdal.info.major <= 2 and pdal.info.minor < 10, reason="Requires PDAL version 2.10 or higher")
+def test_compare_without_sampling(autzen_2010_file: str, autzen_2023_file: str):
+    """Test compare function"""
+
+    output_path = utils.test_data_output_filepath(f"autzen-compare-no-sampling.copc.laz", "compare")
+
+    res = subprocess.run(
+        [
+            utils.pdal_wrench_path(),
+            "compare",
+            f"--input={autzen_2010_file}",
+            f"--input-compare={autzen_2023_file}",
+            f"--output={output_path.as_posix()}",
+        ],
+        check=True,
+    )
+
+    assert res.returncode == 0
+    assert output_path.exists()
+
+    pipeline = pdal.Reader(filename=output_path.as_posix()).pipeline()
+    pipeline.execute()
+
+    dimensions = pipeline.arrays[0].dtype.names
+
+    assert "m3c2_distance" in dimensions
+    assert "m3c2_uncertainty" in dimensions
+    assert "m3c2_significant" in dimensions
+    assert "m3c2_std_dev1" in dimensions
+    assert "m3c2_std_dev2" in dimensions
+    assert "m3c2_count1" in dimensions
+    assert "m3c2_count2" in dimensions
+
+    values = pipeline.arrays[0]["m3c2_distance"]
+    assert values.min() == pytest.approx(-3.8898310663727376, abs=1e-15)
+    assert values.max() == pytest.approx(5.081599567261037, abs=1e-15)