diff --git a/invisible_cities/cities/isaura_test.py b/invisible_cities/cities/isaura_test.py
new file mode 100644
index 000000000..59ad59090
--- /dev/null
+++ b/invisible_cities/cities/isaura_test.py
@@ -0,0 +1,98 @@
+import os
+import numpy  as np
+import tables as tb
+
+from .  isaura         import isaura
+from .. core.configure import configure
+from .. core.configure import all             as all_events
+from .. io.dst_io      import load_dst
+
+from .. core.testing_utils   import assert_tables_equality
+
+
+def test_isaura_contains_all_tables(ICDATADIR, output_tmpdir):
+
+    PATH_IN  = os.path.join(ICDATADIR    , "test_Xe2nu_NEW_exact_deconvolution_joint.NEWMC.h5")
+    PATH_OUT = os.path.join(output_tmpdir, "contain_all_tables.isaura.h5")
+    conf = configure('isaura $ICTDIR/invisible_cities/config/isaura.conf'.split())
+    conf.update(dict(files_in      = PATH_IN ,
+                     file_out      = PATH_OUT))
+    isaura(**conf)
+
+    tables = ["Tracking/Tracks"    ,
+              "Summary/Events"     ,
+              "Run/events"         , "Run/runInfo"            ,
+              "MC/event_mapping"   , "MC/generators"          ,
+              "MC/hits"            ,  "MC/particles"          ,
+              "Filters/hits_select", "Filters/topology_select"]
+
+    with tb.open_file(PATH_OUT, mode="r") as h5out:
+        for table in tables:
+            assert hasattr(h5out.root, table)
+
+
+
+def test_isaura_empty_input_file(ICDATADIR, output_tmpdir):
+
+    PATH_IN  = os.path.join(ICDATADIR    , "empty_file.h5")
+    PATH_OUT = os.path.join(output_tmpdir, "empty_isaura.h5")
+    conf = configure('isaura $ICTDIR/invisible_cities/config/isaura.conf'.split())
+    conf.update(dict(files_in      = PATH_IN,
+                     file_out      = PATH_OUT,
+                     run_number    = 1,
+                     event_range   = all_events))
+    result = isaura(**conf)
+
+    assert result.events_in   == 0
+    assert result.evtnum_list == []
+
+def test_isaura_exact(ICDATADIR, output_tmpdir):
+
+    PATH_IN   = os.path.join(ICDATADIR    , "exact_Kr_deconvolution_with_MC.h5")
+    PATH_OUT  = os.path.join(output_tmpdir, "exact_tables.isaura.h5")
+    PATH_TRUE = os.path.join(ICDATADIR    , "exact_Kr_deco_tracks_with_MC.h5")
+    n_evts    = 5
+    conf = configure('isaura $ICTDIR/invisible_cities/config/isaura.conf'.split())
+    conf.update(dict(files_in      = PATH_IN ,
+                     file_out      = PATH_OUT,
+                     event_range   = n_evts  ))
+    np.random.seed(1234)
+    isaura(**conf)
+
+    tables = ["Tracking/Tracks"    ,
+              "Summary/Events"     ,
+              "Run/events"         , "Run/runInfo"            ,
+              "MC/event_mapping"   , "MC/generators"          ,
+              "MC/hits"            ,  "MC/particles"          ,
+              "Filters/hits_select", "Filters/topology_select"]
+
+    with tb.open_file(PATH_TRUE) as true_output_file:
+        with tb.open_file(PATH_OUT) as output_file:
+            for table in tables:
+                obtained = getattr(     output_file.root, table)
+                expected = getattr(true_output_file.root, table)
+                assert_tables_equality(obtained, expected)
+
+def test_isaura_conserves_energy(ICDATADIR, output_tmpdir):
+
+    PATH_IN  = os.path.join(ICDATADIR    , "exact_Kr_deconvolution_with_MC.h5")
+    PATH_OUT = os.path.join(output_tmpdir, "exact_tables.isaura.h5")
+    n_evts = 5
+    conf = configure('isaura $ICTDIR/invisible_cities/config/isaura.conf'.split())
+    conf.update(dict(files_in      = PATH_IN ,
+                     file_out      = PATH_OUT,
+                     event_range   = n_evts  ))
+    np.random.seed(1234)
+    isaura(**conf)
+
+    deco_hits   = load_dst(PATH_IN , 'DECO'    , 'Events')
+    deco_tracks = load_dst(PATH_OUT, 'Tracking', 'Tracks')
+    deco_events = load_dst(PATH_OUT, 'Summary' , 'Events')
+
+    deco_hits      = deco_hits[deco_hits.event.isin(range(n_evts))]
+    dhits_energy   = deco_hits  [['event', 'E'     ]].groupby(['event'])['E'     ].sum().values
+    dtracks_energy = deco_tracks[['event', 'energy']].groupby(['event'])['energy'].sum().values
+    devents_energy = deco_events.evt_energy.values
+
+    np.testing.assert_allclose(dhits_energy, dtracks_energy)
+    np.testing.assert_allclose(dhits_energy, devents_energy)
diff --git a/invisible_cities/database/test_data/exact_Kr_deco_tracks_with_MC.h5 b/invisible_cities/database/test_data/exact_Kr_deco_tracks_with_MC.h5
new file mode 100644
index 000000000..49b432d22
--- /dev/null
+++ b/invisible_cities/database/test_data/exact_Kr_deco_tracks_with_MC.h5
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a0a0c2c7a1491b7d7c90588d6acf8a182478ea882bac387e28972e4777672ace
+size 81884