diff --git a/tests/test_utils.py b/tests/test_utils.py
index e5ca6cc..f5c678e 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,9 +1,16 @@
 # Copyright 2023 ACCESS-NRI and contributors. See the top-level COPYRIGHT file for details.
 # SPDX-License-Identifier: Apache-2.0
 
+import datetime
+
 import pytest
+import yaml
 
-from access_nri_intake.utils import get_jsonschema
+from access_nri_intake.utils import (
+    get_jsonschema,
+    load_metadata_yaml,
+    validate_against_schema,
+)
 
 
 @pytest.mark.parametrize(
@@ -11,6 +18,9 @@
     ["2a09030653f495939c90a22e95dd1c4587c8695f7f07e17b9129a6491469f9fc", None],
 )
 def test_get_jsonschema(known_hash):
+    """
+    Test that jsonschema are correctly downloaded and required fields are overwritten
+    """
     url = "https://raw.githubusercontent.com/ACCESS-NRI/schema/4e3d10e563d7c1c9f66e9ab92a2926cdec3d6893/file_asset.json"
     required = [
         "path",
@@ -24,3 +34,33 @@ def test_get_jsonschema(known_hash):
     required += ["foo"]
     with pytest.warns(UserWarning):
         _, _ = get_jsonschema(url=url, known_hash=known_hash, required=required)
+
+
+def test_load_metadata_yaml(tmp_path):
+    """
+    Test that dates are left as strings when reading metadata.yaml files
+    """
+    path = tmp_path / "metadata.yaml"
+    date = "2001-01-01"
+    contents = {"date": datetime.date.fromisoformat(date)}
+    with open(path, mode="w") as fpath:
+        yaml.dump(contents, fpath)
+    metadata = load_metadata_yaml(path)
+    assert metadata == {"date": date}
+
+
+@pytest.mark.parametrize("instance", [{"foo": [0, 1, 2]}, {"foo": (0, 1, 2)}])
+def test_validate_against_schema(instance):
+    """
+    Test jsonschema validation, allowing for tuples as arrays
+    """
+    schema = {
+        "$schema": "https://json-schema.org/draft/2020-12/schema",
+        "type": "object",
+        "properties": {
+            "foo": {
+                "type": "array",
+            },
+        },
+    }
+    validate_against_schema(instance, schema)