Revert "Fix tests"

This reverts commit 27e6456.

Author: VeckoTheGecko

tests/test_fieldset.py

@@ -454,8 +454,8 @@ def test_fieldset_describe_backends(tmp_path):
 | UV     | VectorField |             0 | CGrid_Velocity(...)     | -                 |
 | UVW    | VectorField |             0 | CGrid_Velocity(...)     | -                 |
 
-mesh: SphericalMesh(radius=6366707.019493707)
-time interval: (np.datetime64('2000-01-02T12:00:00.000000000'), np.datetime64('2000-01-27T12:00:00.000000000'))
+mesh: spherical
+time interval: (np.datetime64('2000-01-02T12:00:00.000000000'), np.datetime64('2000-01-12T12:00:00.000000000'))
 """
     fieldset.describe(io)
     actual = io.getvalue()
@@ -474,8 +474,8 @@ def test_fieldset_describe_backends(tmp_path):
 | UV     | VectorField |             0 | CGrid_Velocity(...)     | -                 |
 | UVW    | VectorField |             0 | CGrid_Velocity(...)     | -                 |
 
-mesh: SphericalMesh(radius=6366707.019493707)
-time interval: (np.datetime64('2000-01-02T12:00:00.000000000'), np.datetime64('2000-01-27T12:00:00.000000000'))
+mesh: spherical
+time interval: (np.datetime64('2000-01-02T12:00:00.000000000'), np.datetime64('2000-01-12T12:00:00.000000000'))
 """
     fieldset.describe(io)
     actual = io.getvalue()
@@ -496,8 +496,8 @@ def test_fieldset_describe_backends(tmp_path):
 | UV     | VectorField |             0 | CGrid_Velocity(...)     | -                 |
 | UVW    | VectorField |             0 | CGrid_Velocity(...)     | -                 |
 
-mesh: SphericalMesh(radius=6366707.019493707)
-time interval: (np.datetime64('2000-01-02T12:00:00.000000000'), np.datetime64('2000-01-27T12:00:00.000000000'))
+mesh: spherical
+time interval: (np.datetime64('2000-01-02T12:00:00.000000000'), np.datetime64('2000-01-12T12:00:00.000000000'))
 """
     fieldset.describe(io)
     actual = io.getvalue()