diff --git a/tests/test_utils.py b/tests/test_utils.py
new file mode 100644
index 0000000..a331211
--- /dev/null
+++ b/tests/test_utils.py
@@ -0,0 +1,27 @@
+import todoist_interface.utils as utils
+
+
+def test_get_missing_tasks():
+    """
+    Test if the issues_to_check are in the list of tasks
+    """
+    tasks = [{'id': '1', 'content': 'task 1'},
+             {'id': '2', 'content': 'task 2'}]
+    issues_to_check = [{'id': '1', 'content': 'task 1'},
+                       {'id': '3', 'content': 'task 3'},
+                       {'id': '2', 'content': 'task 2'}]
+    missing_should_be = [{'id': '3', 'content': 'task 3'}]
+    missing_tasks = utils.get_missing_tasks(tasks, issues_to_check)
+    assert missing_tasks == missing_should_be
+
+
+def test_get_missing_tasks_without_tasks():
+    """
+    Test if the issues_to_check are in the list of tasks
+    """
+    tasks = []
+    issues_to_check = [{'id': '1', 'content': 'task 1'},
+                       {'id': '3', 'content': 'task 3'},
+                       {'id': '2', 'content': 'task 2'}]
+    missing_tasks = utils.get_missing_tasks(tasks, issues_to_check)
+    assert missing_tasks == issues_to_check