Test failure in test_kd_tree.Test.test_custom

[avalentino]

The test has been run of Linux in a clean virtual environment.

$ python3 -m pytest
======================================================= test session starts ========================================================
platform linux -- Python 3.7.5, pytest-5.3.1, py-1.8.0, pluggy-0.13.1
rootdir: /home/antonio/projects/pyresample
collected 252 items                                                                                                                

pyresample/test/test_bilinear.py ...................................                                                         [ 13%]
pyresample/test/test_bucket.py ........                                                                                      [ 17%]
pyresample/test/test_data_reduce.py ......                                                                                   [ 19%]
pyresample/test/test_ewa_fornav.py ....                                                                                      [ 21%]
pyresample/test/test_ewa_ll2cr.py ......                                                                                     [ 23%]
pyresample/test/test_geometry.py .......................................................                                     [ 45%]
pyresample/test/test_grid.py ............                                                                                    [ 50%]
pyresample/test/test_image.py ..............                                                                                 [ 55%]
pyresample/test/test_kd_tree.py F........................................s..                                                 [ 73%]
pyresample/test/test_plot.py .s.....                                                                                         [ 75%]
pyresample/test/test_spherical.py ........................                                                                   [ 85%]
pyresample/test/test_spherical_geometry.py .....                                                                             [ 87%]
pyresample/test/test_swath.py ..                                                                                             [ 88%]
pyresample/test/test_utils.py ..............................                                                                 [100%]

============================================================= FAILURES =============================================================
_________________________________________________________ Test.test_custom _________________________________________________________

self = <pyresample.test.test_kd_tree.Test testMethod=test_custom>

    def test_custom(self):
        def wf(dist):
            return 1 - dist / 100000.0
    
        data = np.fromfunction(lambda y, x: (y + x) * 10 ** -5, (5000, 100))
        lons = np.fromfunction(
            lambda y, x: 3 + (10.0 / 100) * x, (5000, 100))
        lats = np.fromfunction(
            lambda y, x: 75 - (50.0 / 5000) * y, (5000, 100))
        swath_def = geometry.SwathDefinition(lons=lons, lats=lats)
        with catch_warnings(UserWarning) as w:
            res = kd_tree.resample_custom(swath_def, data.ravel(),
                                          self.area_def, 50000, wf, segments=1)
>           self.assertFalse(len(w) != 1)
E           AssertionError: True is not false

pyresample/test/test_kd_tree.py:417: AssertionError

[CUT]

================================ 1 failed, 249 passed, 2 skipped, 251 warnings in 158.67s (0:02:38) ================================

Installed packages

$ python3 -m pip freeze 
affine==2.3.0
attrs==19.3.0
Cartopy==0.17.0
Click==7.0
click-plugins==1.1.1
cligj==0.5.0
configobj==5.0.6
cycler==0.10.0
dask==2.8.1
importlib-metadata==1.1.0
kiwisolver==1.1.0
matplotlib==3.1.2
more-itertools==8.0.0
numpy==1.17.4
packaging==19.2
pandas==0.25.3
Pillow==6.2.1
pkg-resources==0.0.0
pluggy==0.13.1
py==1.8.0
pykdtree==1.3.1
pyparsing==2.4.5
pyproj==2.4.2.post1
pyresample==1.13.2+28.g19ff793
pyshp==2.1.0
pytest==5.3.1
python-dateutil==2.8.1
pytz==2019.3
PyYAML==5.2
rasterio==1.1.1
scipy==1.3.3
Shapely==1.6.4.post2
six==1.13.0
snuggs==1.4.7
toolz==0.10.0
wcwidth==0.1.7
xarray==0.14.1
zipp==0.6.0

[mraspaud]

@avalentino thanks for the report. I think @djhoese is looking at this now.

[djhoese]

Yes I'm working on this in #236. This is caused by pyproj 2.4.2.post1 and it raising extra warnings about using PROJ strings/dicts.

[avalentino]

Thank @djhoese and @mraspaud.
I can confirm that the patch in #236 works for my setup.

[avalentino]

PR #236 has been merged to this issue can be considered solved.
Thanks a lot.
Closing.