Update grdfill parameters for GMT 6.2.0

pygmt/src/grdfill.py

@@ -4,6 +4,7 @@
 
 import xarray as xr
 from pygmt.clib import Session
+from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers import (
     GMTTempFile,
     build_arg_string,
@@ -18,6 +19,7 @@
     A="mode",
     G="outgrid",
     R="region",
+    V="verbose",
 )
 @kwargs_to_strings(R="sequence")
 def grdfill(grid, **kwargs):
@@ -47,6 +49,7 @@ def grdfill(grid, **kwargs):
         pixels [default radius is :math:`r^2 = \sqrt{{ X^2 + Y^2 }}`,
         where (*X,Y*) are the node dimensions of the grid]).
     {R}
+    {V}
 
     Returns
     -------
@@ -57,6 +60,8 @@ def grdfill(grid, **kwargs):
         - None if ``outgrid`` is set (grid output will be stored in file set by
           ``outgrid``)
     """
+    if "A" not in kwargs.keys() and "L" not in kwargs.keys():
+        raise GMTInvalidInput("""An argument for mode is required.""")
     with GMTTempFile(suffix=".nc") as tmpfile:
         with Session() as lib:
             file_context = lib.virtualfile_from_data(check_kind="raster", data=grid)

pygmt/tests/test_grdfill.py

@@ -1,5 +1,5 @@
 """
-Tests for grdclip.
+Tests for grdfill.
 """
 import os
 
@@ -8,6 +8,7 @@
 import xarray as xr
 from pygmt import grdfill, grdinfo
 from pygmt.datasets import load_earth_relief
+from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers import GMTTempFile
 
 
@@ -47,3 +48,11 @@ def test_grdfill_file_out(grid):
         assert os.path.exists(path=tmpfile.name)  # check that outgrid exists
         result = grdinfo(tmpfile.name, per_column=True).strip()
         assert result == "-5 5 -5 5 -5130.5 inf 1 1 10 10 1 1"
+
+
+def test_grdfill_required_args(grid):
+    """
+    Test that grdfill fails with only a grid argument.
+    """
+    with pytest.raises(GMTInvalidInput):
+        grdfill(grid=grid)