CI: tests, linters

.github/workflows/python-package.yml

@@ -0,0 +1,46 @@
+name: Tests and Linters
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.10", "3.11"]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        pip install -r requirements.txt
+
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
+    - name: Lint with black
+      uses: psf/black@stable
+      with:
+        options: "--check --verbose --diff"
+
+    - name: Test with pytest
+      run: |
+        pip install .
+        pytest

octreelib/grid/grid_base.py

@@ -1,5 +1,5 @@
 from abc import ABC, abstractmethod
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from enum import Enum
 from typing import Callable, Generic, List, Type
 
@@ -63,7 +63,7 @@ class GridConfigBase(ABC):
     octree_config: OctreeConfigBase
     debug: bool = False
     grid_voxel_edge_length: int = 1
-    corner: RawPoint = np.array(([0.0, 0.0, 0.0]))
+    corner: RawPoint = field(default_factory=lambda: np.array(([0.0, 0.0, 0.0])))
 
     @property
     def compatible_octree_types(self):

octreelib/internal/voxel.py

@@ -1,5 +1,4 @@
 import itertools
-from abc import ABC, abstractmethod
 from typing import Optional
 
 import numpy as np
@@ -48,7 +47,9 @@ def is_point_geometrically_inside(self, point: RawPoint) -> bool:
         :param point: Point to check.
         :return: True if point is inside the bounding box of a voxel, False if outside.
         """
-        return bool((point >= self.corner_min).all()) and bool((point <= self.corner_max).all())
+        return bool((point >= self.corner_min).all()) and bool(
+            (point <= self.corner_max).all()
+        )
 
     @property
     def corner_min(self):
@@ -88,9 +89,7 @@ def __init__(
     ):
         super().__init__(corner_min, edge_length)
 
-        self._points: PointCloud = (
-            points if points is not None else PointCloud.empty()
-        )
+        self._points: PointCloud = points if points is not None else PointCloud.empty()
 
     def get_points(self) -> RawPointCloud:
         """