adding test for forecast_no_ts

tests/test_forecast_no_ts.py

@@ -0,0 +1,21 @@
+import pandas as pd
+from quartz_solar_forecast.forecast import run_forecast
+from quartz_solar_forecast.pydantic_models import PVSite
+
+
+def test_run_forecast_no_ts():
+    # make input data
+    site = PVSite(latitude=51.75, longitude=-1.25, capacity_kwp=1.25)
+
+    current_ts = pd.Timestamp.now().round("15min")
+
+    # run model with no ts
+    predications_df = run_forecast(site=site)
+
+    # check current ts agrees with dataset
+    assert predications_df.index.min() == current_ts
+
+    print(predications_df)
+    print(f"Current time: {current_ts}")
+    print(f"Max: {predications_df['power_wh'].max()}")
+