Add test for min_constraint

Author: iimog

tests/transforms/test_transforms.py

@@ -253,6 +253,10 @@ def test_arguments_are_and_are_not_dict(self):
         with pytest.raises(ValueError):
             transform.arguments_are_dict()
 
+    def test_min_constraint(self):
+        transform = tio.RandomNoise()
+        assert transform._parse_range(3, 'name', min_constraint=0) == (0,3)
+
     def test_bad_over_max(self):
         transform = tio.RandomNoise()
         with pytest.raises(ValueError):