Add test ADL1 for coffeacalver

tests/test_adl1.py

@@ -0,0 +1,38 @@
+import time
+
+import awkward as ak
+import hist
+import matplotlib.pyplot as plt
+import numpy as np
+from coffea.nanoevents import NanoEventsFactory, NanoAODSchema
+from coffea import processor
+
+import dask
+import dask_awkward as dak
+import hist.dask as hda
+
+from distributed import Client
+client=Client()
+
+# The opendata files are non-standard NanoAOD, so some optional data columns are missing
+NanoAODSchema.warn_missing_crossrefs = False
+
+# The warning emitted below indicates steps_per_file is for initial data exploration
+# and test. When running at scale there are better ways to specify processing chunks
+# of files.
+events = NanoEventsFactory.from_root(
+    "root://eospublic.cern.ch//eos/root-eos/Run2012B_SingleMu.root:Events",
+    steps_per_file=500,
+    metadata={"dataset": "SingleMu"}
+    ).events()
+
+
+@pytest.mark.coffeacalver
+def test_adl1():
+    q1_hist = (
+        hda.Hist.new.Reg(100, 0, 200, name="met", label="$E_{T}^{miss}$ [GeV]")
+        .Double()
+        .fill(events.MET.pt)
+    )
+    q1_hist.compute().plot1d(flow="none")
+    dak.necessary_columns(q1_hist)