test

python/tests/test_de_model.py

@@ -0,0 +1,35 @@
+import sympy as sp
+from amici.de_model import Event
+from amici.import_utils import amici_time_symbol
+
+
+def test_event_trigger_time():
+    e = Event(
+        sp.Symbol("event1"), "event name", amici_time_symbol - 10, sp.Float(0)
+    )
+    assert e.triggers_at_fixed_timepoint() is True
+    assert e.get_trigger_time() == 10
+
+    # fixed, but multiple timepoints - not (yet) supported
+    e = Event(
+        sp.Symbol("event1"),
+        "event name",
+        sp.sin(amici_time_symbol),
+        sp.Float(0),
+    )
+    assert e.triggers_at_fixed_timepoint() is False
+
+    e = Event(
+        sp.Symbol("event1"), "event name", amici_time_symbol / 2, sp.Float(0)
+    )
+    assert e.triggers_at_fixed_timepoint() is True
+    assert e.get_trigger_time() == 0
+
+    # parameter-dependent triggers - not (yet) supported
+    e = Event(
+        sp.Symbol("event1"),
+        "event name",
+        amici_time_symbol - sp.Symbol("delay"),
+        sp.Float(0),
+    )
+    assert e.triggers_at_fixed_timepoint() is False