chore: import upstream snapshot with attribution

test/python/testvectors/testsparse/testvectors.py

@@ -0,0 +1,48 @@
+"""
+Sparse Vectors module tests
+"""
+
+import unittest
+
+from txtai.vectors import SparseVectors, SparseVectorsFactory
+
+
+class TestSparseVectors(unittest.TestCase):
+    """
+    Sparse Vectors tests.
+    """
+
+    def testCustom(self):
+        """
+        Test custom sparse vectors instance
+        """
+
+        self.assertIsNotNone(
+            SparseVectorsFactory.create({"method": "txtai.vectors.SparseSTVectors", "path": "sparse-encoder-testing/splade-bert-tiny-nq"})
+        )
+
+    def testDefaultNormalize(self):
+        """
+        Test defaultnormalize method
+        """
+
+        vectors = SparseVectors(None, None, None)
+        self.assertFalse(vectors.defaultnormalize())
+
+    def testNotSupported(self):
+        """
+        Test exceptions for unsupported methods
+        """
+
+        vectors = SparseVectors(None, None, None)
+
+        self.assertRaises(ValueError, vectors.truncate, None)
+        self.assertRaises(ValueError, vectors.quantize, None)
+
+    def testNotFound(self):
+        """
+        Test unresolvable vector backend
+        """
+
+        with self.assertRaises(ImportError):
+            SparseVectorsFactory.create({"method": "notfound.vectors"})