Improved error message

Author: ankane

pgvector/bit.py

@@ -15,7 +15,7 @@ def __init__(self, value):
             else:
                 value = np.asarray(value)
                 if value.dtype != np.bool:
-                    raise ValueError('expected dtype to be bool')
+                    raise ValueError('expected all elements to be boolean')
 
             if value.ndim != 1:
                 raise ValueError('expected ndim to be 1')

tests/test_bit.py

@@ -7,10 +7,15 @@ class TestBit:
     def test_list(self):
         assert Bit([True, False, True]).to_list() == [True, False, True]
 
+    def test_list_none(self):
+        with pytest.raises(ValueError) as error:
+            Bit([True, None, True])
+        assert str(error.value) == 'expected all elements to be boolean'
+
     def test_list_int(self):
         with pytest.raises(ValueError) as error:
             Bit([254, 7, 0])
-        assert str(error.value) == 'expected dtype to be bool'
+        assert str(error.value) == 'expected all elements to be boolean'
 
     def test_tuple(self):
         assert Bit((True, False, True)).to_list() == [True, False, True]