sort imports and fix linting errors for tests folder

tests/datasets_tests.py

@@ -1,8 +1,9 @@
-from clouddrift import datasets
-from clouddrift.ragged import apply_ragged, subset
-import numpy as np
 import unittest
 
+import numpy as np
+
+from clouddrift import datasets
+from clouddrift.ragged import apply_ragged, subset
 
 if __name__ == "__main__":
     unittest.main()

tests/kinematics_tests.py

@@ -1,17 +1,18 @@
+import unittest
+
+import numpy as np
+import xarray as xr
+
 from clouddrift.kinematics import (
     inertial_oscillation_from_position,
     kinetic_energy,
     position_from_velocity,
     residual_position_from_displacement,
-    velocity_from_position,
     spin,
+    velocity_from_position,
 )
-from clouddrift.sphere import EARTH_RADIUS_METERS, coriolis_frequency
 from clouddrift.raggedarray import RaggedArray
-import unittest
-import numpy as np
-import xarray as xr
-
+from clouddrift.sphere import EARTH_RADIUS_METERS, coriolis_frequency
 
 if __name__ == "__main__":
     unittest.main()

tests/pairs_tests.py

@@ -1,9 +1,10 @@
-from clouddrift import datasets, pairs, ragged, sphere
+import unittest
+
 import numpy as np
 import pandas as pd
-import unittest
 import xarray as xr
 
+from clouddrift import datasets, pairs, ragged, sphere
 
 if __name__ == "__main__":
     unittest.main()

tests/plotting_tests.py

@@ -1,11 +1,12 @@
-import cartopy.crs as ccrs
-import matplotlib.pyplot as plt
-import numpy as np
 import sys
 import unittest
 from unittest.mock import patch
-from clouddrift.plotting import plot_ragged
 
+import cartopy.crs as ccrs
+import matplotlib.pyplot as plt
+import numpy as np
+
+from clouddrift.plotting import plot_ragged
 
 if __name__ == "__main__":
     unittest.main()

tests/ragged_tests.py

@@ -1,3 +1,11 @@
+import unittest
+from concurrent import futures
+from datetime import datetime, timedelta
+
+import numpy as np
+import pandas as pd
+import xarray as xr
+
 from clouddrift.kinematics import velocity_from_position
 from clouddrift.ragged import (
     apply_ragged,
@@ -10,13 +18,6 @@
     unpack,
 )
 from clouddrift.raggedarray import RaggedArray
-import unittest
-import numpy as np
-import xarray as xr
-import pandas as pd
-from datetime import datetime, timedelta
-from concurrent import futures
-
 
 if __name__ == "__main__":
     unittest.main()

tests/raggedarray_tests.py

@@ -1,10 +1,12 @@
+import os
 import unittest
 from unittest import TestCase
-import os
-import xarray as xr
+
+import awkward as ak
 import numpy as np
+import xarray as xr
+
 from clouddrift import RaggedArray
-import awkward as ak
 
 NETCDF_ARCHIVE = "test_archive.nc"
 PARQUET_ARCHIVE = "test_archive.parquet"

tests/signal_tests.py

@@ -1,13 +1,15 @@
+import unittest
+
+import numpy as np
+import xarray as xr
+
 from clouddrift.signal import (
     analytic_signal,
     cartesian_to_rotary,
-    rotary_to_cartesian,
     ellipse_parameters,
     modulated_ellipse_signal,
+    rotary_to_cartesian,
 )
-import numpy as np
-import unittest
-import xarray as xr
 
 if __name__ == "__main__":
     unittest.main()

tests/sphere_tests.py

@@ -1,23 +1,25 @@
+import unittest
+
+import numpy as np
+import xarray as xr
+
 from clouddrift.sphere import (
+    EARTH_RADIUS_METERS,
+    bearing,
+    cartesian_to_spherical,
+    cartesian_to_tangentplane,
+    coriolis_frequency,
+    cumulative_distance,
+    distance,
+    plane_to_sphere,
+    position_from_distance_and_bearing,
     recast_lon,
     recast_lon180,
     recast_lon360,
-    plane_to_sphere,
     sphere_to_plane,
-    distance,
-    bearing,
-    position_from_distance_and_bearing,
     spherical_to_cartesian,
-    cartesian_to_spherical,
     tangentplane_to_cartesian,
-    cartesian_to_tangentplane,
-    coriolis_frequency,
-    cumulative_distance,
-    EARTH_RADIUS_METERS,
 )
-import unittest
-import numpy as np
-import xarray as xr
 
 ONE_DEGREE_METERS = np.deg2rad(EARTH_RADIUS_METERS)
 

tests/wavelet_tests.py

@@ -1,15 +1,17 @@
+import unittest
+
+import numpy as np
+
 from clouddrift.wavelet import (
-    morse_wavelet_transform,
-    wavelet_transform,
-    morse_wavelet,
-    morse_freq,
+    _morsehigh,
     morse_amplitude,
+    morse_freq,
     morse_logspace_freq,
     morse_properties,
-    _morsehigh,
+    morse_wavelet,
+    morse_wavelet_transform,
+    wavelet_transform,
 )
-import numpy as np
-import unittest
 
 if __name__ == "__main__":
     unittest.main()