Textual changes + test

pygeos/linear.py

@@ -89,20 +89,20 @@ def line_merge(line):
     return lib.line_merge(line)
 
 
-def shared_paths(geom1, geom2):
+def shared_paths(a, b, **kwargs):
     """Returns the shared paths between geom1 and geom2.
 
     Both geometries should be linestrings or arrays of linestrings.
     A geometrycollection or array of geometrycollections is returned
-    with each geometrycollection two elements. The first element is a
+    with two elements in each geometrycollection. The first element is a
     multilinestring containing shared paths with the same direction
     for both inputs. The second element is a multilinestring containing
     shared paths with the opposite direction for the two inputs.
 
     Parameters
     ----------
-    geom1 : Geometry or array_like
-    geom2 : Geometry or array_like
+    a : Geometry or array_like
+    b : Geometry or array_like
 
     Examples
     --------
@@ -111,4 +111,4 @@ def shared_paths(geom1, geom2):
     >>> shared_paths(geom1, geom2)
     <pygeos.Geometry GEOMETRYCOLLECTION (MULTILINESTRING EMPTY, MULTILINESTRING ((1 0, 1 1)))>
     """
-    return lib.shared_paths(geom1, geom2)
+    return lib.shared_paths(a, b, **kwargs)

pygeos/test/test_linear.py

@@ -1,5 +1,6 @@
 import pygeos
 import numpy as np
+import pytest
 
 from .common import empty_point
 from .common import empty_line_string
@@ -8,8 +9,6 @@
 from .common import linear_ring
 from .common import multi_line_string
 
-pygeos.linestrings([(0, 0), (1, 0), (1, 1)])
-
 
 def test_line_interpolate_point_geom_array():
     actual = pygeos.line_interpolate_point([line_string, linear_ring], -1)
@@ -77,3 +76,10 @@ def test_shared_paths_none():
     assert pygeos.shared_paths(line_string, None) is None
     assert pygeos.shared_paths(None, line_string) is None
     assert pygeos.shared_paths(None, None) is None
+
+
+def test_shared_paths_non_linestring():
+    g1 = pygeos.linestrings([(0, 0), (1, 0), (1, 1)])
+    g2 = pygeos.points(0, 1)
+    with pytest.raises(pygeos.GEOSException):
+        pygeos.shared_paths(g1, g2)