1 files changed, 26 insertions, 2 deletions
diff --git a/finance/test_flow.py b/finance/test_flow.py
index 497c8d7..db1b695 100644
--- a/finance/test_flow.py
+++ b/finance/test_flow.py
@@ -1,11 +1,11 @@
 from datetime import datetime
 from decimal import Decimal
 
-from finance import flow
+from finance.flow import Flow, simulate
 
 
 def test_flow_integration() -> None:
-    fl = flow.Flow(
+    fl = Flow(
         amount=Decimal(3000.0),
         since=datetime(2023, 1, 1),
         until=datetime(2026, 1, 5),
@@ -26,3 +26,27 @@ def test_flow_integration() -> None:
 
     for test in tests:
         assert fl.integrate(start=test[0], end=test[1]) == test[2]
+
+
+def test_simulate() -> None:
+    flows = (Flow(amount=Decimal(100.0), since=None, until=None),)
+
+    dates, values = simulate(
+        start=datetime(2024, 1, 1),
+        end=datetime(2024, 4, 1),
+        flows=flows,
+    )
+
+    assert dates == [
+        datetime(2024, 1, 1),
+        datetime(2024, 2, 1),
+        datetime(2024, 3, 1),
+        datetime(2024, 4, 1),
+    ]
+
+    assert values == [
+        Decimal(100.0),
+        Decimal(200.0),
+        Decimal(300.0),
+        Decimal(400.0),
+    ]