Merge branch 'main' into sklearn-1.8

Author: PicoCentauri

.github/workflows/build.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: "3.14"
 

.github/workflows/docs.yml

@@ -11,10 +11,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.14"
 

.github/workflows/lint.yml

@@ -9,10 +9,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: "3.14"
 

.github/workflows/release.yml

@@ -16,11 +16,11 @@ jobs:
       contents: write
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: setup Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: "3.14"
     - run: python -m pip install tox

.github/workflows/tests-dev.yml

@@ -15,10 +15,10 @@ jobs:
           - "3.14"
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
 

.github/workflows/tests.yml

@@ -20,10 +20,10 @@ jobs:
           - "3.14"
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -38,6 +38,5 @@ jobs:
     - name: upload to codecov.io
       uses: codecov/codecov-action@v5
       with:
-        fail_ci_if_error: true
         files: ./tests/coverage.xml
         token: ${{ secrets.CODECOV_TOKEN }}

src/skmatter/metrics/_reconstruction_measures.py

@@ -6,6 +6,8 @@
 
 from skmatter.datasets import load_degenerate_CH4_manifold
 from skmatter.metrics import (
+    check_global_reconstruction_measures_input,
+    check_local_reconstruction_measures_input,
     componentwise_prediction_rigidity,
     global_reconstruction_distortion,
     global_reconstruction_error,
@@ -214,6 +216,46 @@ def test_local_reconstruction_error_test_idx(self):
             f"size {test_size}",
         )
 
+    def test_source_target_len(self):
+        # tests that the source and target features have the same lenght
+        X = np.array([[1, 2, 3], [4, 5, 6]])
+        Y = np.array([[1, 2, 3]])
+
+        train_idx = [0]
+        test_idx = [1]
+        scaler = None
+        estimator = None
+
+        with self.assertRaises(ValueError) as context:
+            check_global_reconstruction_measures_input(
+                X, Y, train_idx, test_idx, scaler, estimator
+            )
+
+        expected_message = "First dimension of X (2) and Y (1) must match"
+        self.assertEqual(str(context.exception), expected_message)
+
+    def test_len_n_local_points(self):
+        # tests that source len is greater or equal than n_local_points in LFRE
+        X = np.array([[1, 2, 3], [4, 5, 6]])
+        Y = np.array([[1, 1, 1], [2, 2, 2]])
+
+        n_local_points = 10
+        train_idx = [0]
+        test_idx = [1]
+        scaler = None
+        estimator = None
+
+        with self.assertRaises(ValueError) as context:
+            check_local_reconstruction_measures_input(
+                X, Y, n_local_points, train_idx, test_idx, scaler, estimator
+            )
+
+        expected_message = (
+            f"X has {len(X)} samples but n_local_points={n_local_points}. "
+            "Must have at least n_local_points samples"
+        )
+        self.assertEqual(str(context.exception), expected_message)
+
 
 class DistanceTests(unittest.TestCase):
     @classmethod