Updated unit tests and removed unecessary import

gwpy/table/io/losc.py

@@ -18,7 +18,6 @@
 
 """Fetch and parse an event catalog from GWOSC.
 """
-import json
 import numbers
 from collections import OrderedDict
 

gwpy/table/tests/test_table.py

@@ -742,21 +742,18 @@ def test_fetch_open_data(self):
         except (URLError, SSLError) as exc:  # pragma: no-cover
             pytest.skip(str(exc))
         assert len(table)
-        assert {"L_peak", "distance", "mass1"}.intersection(table.colnames)
+        assert {"mass_1_source", "luminosity_distance", "chi_eff"}.intersection(table.colnames)
         # check unit parsing worked
-        assert table["distance"].unit == "Mpc"
-        # check that masking worked (needs table to be sorted)
-        gw170818 = table.loc["GW170818"]
-        assert isinstance(gw170818["snr_pycbc"], MaskedConstant)
+        assert table["luminosity_distance"].unit == "Mpc"
 
     def test_fetch_open_data_kwargs(self):
         try:
             table = self.TABLE.fetch_open_data(
                 "GWTC-1-confident",
-                selection="mass1 < 5",
-                columns=["name", "mass1", "mass2", "distance"])
+                selection="mass_1_source < 5",
+                columns=["name","mass_1_source","mass_2_source", "luminosity_distance"])
         except (URLError, SSLError) as exc:  # pragma: no-cover
             pytest.skip(str(exc))
         assert len(table) == 1
-        assert table[0]["name"] == "GW170817"
-        assert set(table.colnames) == {"name", "mass1", "mass2", "distance"}
+        assert table[0]["name"] == "GW170817_R1"
+        assert set(table.colnames) == {"name","mass_1_source","mass_2_source", "luminosity_distance"}