tests: add validation tests

Author: M3nin0

tests/test_validation.py

@@ -0,0 +1,48 @@
+#
+# Copyright (C) 2025 sits developers.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+
+"""Unit tests for validation operations (cube and time-series)."""
+
+from pysits.models import SITSConfusionMatrix, SITSNamedVector, SITSTable
+from pysits.sits.context import cerrado_2classes
+from pysits.sits.ml import sits_rfor
+from pysits.sits.ts import sits_sample, sits_validate
+
+
+def test_sits_validate():
+    """Test validate operation."""
+
+    # Sample data
+    samples = sits_sample(cerrado_2classes, frac=0.5)
+    samples_validation = sits_sample(cerrado_2classes, frac=0.5)
+
+    # Validate samples
+    matrix = sits_validate(
+        samples=samples, samples_validation=samples_validation, ml_method=sits_rfor()
+    )
+
+    # Check properties
+    assert isinstance(matrix, SITSConfusionMatrix)
+    assert isinstance(matrix.by_class, SITSNamedVector)
+    assert isinstance(matrix.dots, list)
+    assert isinstance(matrix.mode, str)
+    assert isinstance(matrix.overall, SITSNamedVector)
+    assert isinstance(matrix.table, SITSTable)
+
+    # Check values
+    assert matrix.mode == "sens_spec"
+    assert matrix.positive == "Cerrado"