add tests

tests/unit/test_parser.py

@@ -0,0 +1,24 @@
+import unittest
+from pyiron_ontology.parser import get_inputs_and_outputs
+from pyiron_workflow import Workflow
+from semantikon.typing import u
+
+
+@Workflow.wrap.as_function_node("speed")
+def calculate_speed(
+    distance: u(float, units="meter"),
+    time: u(float, units="second"),
+) -> u(float, units="meter/second"):
+    return distance / time
+
+
+class TestParser(unittest.TestCase):
+    def test_parser(self):
+        c = calculate_speed()
+        output_dict = get_inputs_and_outputs(c)
+        for label in ["input", "output", "function", "label"]:
+            self.assertIn(label, output_dict)
+
+
+if __name__ == "__main__":
+    unittest.main()