Add flux span ednpoint test

tests/test_model_api.py

@@ -650,3 +650,20 @@ def test_counts_to_dimensionless_amr(self):
 
  for initial in tm_dimless.initials.values():
  assert initial.concept.units.expression.args[0].equals(1)
+
+ def test_flux_span_endpoint(self):
+ # Load test file
+ from mira.sources.askenet.flux_span import test_file_path
+ flux_span = json.load(test_file_path.open())
+ response = self.client.post(
+ "/api/flux_span",
+ json={"flux_span": flux_span}
+ )
+ self.assertEqual(200, response.status_code)
+
+ flux_span_tm_json = response.json()
+ flux_span_tm = TemplateModel.from_json(flux_span_tm_json)
+ assert len(flux_span_tm.templates) == 10
+ assert len(flux_span_tm.parameters) == 4
+ assert all(t.rate_law for t in flux_span_tm.templates)
+