Eliminate spurious tests

stingray/tests/test_varenergyspectrum.py

@@ -591,80 +591,3 @@ def test_lagspectrum_invalid_warns(self):
 
         assert np.all(np.isnan(lag.spectrum))
         assert np.all(np.isnan(lag.spectrum_error))
-
-
-class TestRoundTrip:
-    @classmethod
-    def setup_class(cls):
-        tstart = 0.0
-        tend = 100.0
-        nphot = 1000
-        alltimes = np.random.uniform(tstart, tend, nphot)
-        alltimes.sort()
-        cls.events = EventList(
-            alltimes, energy=np.random.uniform(0.3, 12, nphot), gti=[[tstart, tend]]
-        )
-        cls.vespec = DummyVarEnergy(
-            cls.events, [0.0, 10000], (0.5, 5, 10, "lin"), [0.3, 10], bin_time=0.1
-        )
-        cls.vespec.spectrum = np.zeros_like(cls.vespec.energy)
-        cls.vespec.spectrum_error = np.zeros_like(cls.vespec.energy)
-
-    def _check_equal(self, so, table):
-        for attr in ["energy", "spectrum", "spectrum_error"]:
-            assert np.allclose(getattr(so, attr), table[attr])
-
-        if hasattr(table, "meta"):
-            for attr in ["freq_interval"]:
-                assert getattr(so, attr) == table.meta[attr]
-        if hasattr(table, "attrs"):
-            for attr in ["freq_interval"]:
-                assert getattr(so, attr) == table.attrs[attr]
-
-    def test_astropy_export(self):
-        so = self.vespec
-        ts = so.to_astropy_table()
-        self._check_equal(so, ts)
-        with pytest.raises(NotImplementedError):
-            so.from_astropy_table(ts)
-
-    @pytest.mark.skipif("not _HAS_XARRAY")
-    def test_xarray_export(self):
-        so = self.vespec
-        ts = so.to_xarray()
-        self._check_equal(so, ts)
-        with pytest.raises(NotImplementedError):
-            so.from_xarray(ts)
-
-    @pytest.mark.skipif("not _HAS_PANDAS")
-    def test_pandas_export(self):
-        so = self.vespec
-        ts = so.to_pandas()
-        self._check_equal(so, ts)
-        with pytest.raises(NotImplementedError):
-            so.from_pandas(ts)
-
-    @pytest.mark.skipif("not _HAS_H5PY")
-    def test_hdf_export(self):
-        so = self.vespec
-        so.write("dummy.hdf5")
-        new_so = Table.read("dummy.hdf5")
-        os.unlink("dummy.hdf5")
-        self._check_equal(so, new_so)
-
-    @pytest.mark.parametrize("fmt", ["ascii.ecsv", "ascii", "fits"])
-    def test_file_export(self, fmt):
-        so = self.vespec
-        with pytest.warns(UserWarning, match=".* output does not serialize the metadata"):
-            so.write("dummy", fmt=fmt)
-        new_so = Table.read("dummy", format=fmt)
-        os.unlink("dummy")
-        self._check_equal(so, new_so)
-
-    @pytest.mark.parametrize("fmt", ["pickle"])
-    def test_file_export_pickle(self, fmt):
-        so = self.vespec
-        so.write("dummy", fmt=fmt)
-        new_so = so.read("dummy", fmt=fmt)
-        os.unlink("dummy")
-        self._check_equal(so, new_so.to_astropy_table())