structure saas with tools

.venv/lib/python3.10/site-packages/shapely/tests/legacy/test_linemerge.py

@@ -0,0 +1,43 @@
+import unittest
+
+from shapely.geometry import LineString, MultiLineString
+from shapely.ops import linemerge
+
+
+class LineMergeTestCase(unittest.TestCase):
+    def test_linemerge(self):
+        lines = MultiLineString([[(0, 0), (1, 1)], [(2, 0), (2, 1), (1, 1)]])
+        result = linemerge(lines)
+        assert isinstance(result, LineString)
+        assert not result.is_ring
+        assert len(result.coords) == 4
+        assert result.coords[0] == (0.0, 0.0)
+        assert result.coords[3] == (2.0, 0.0)
+
+        lines2 = MultiLineString([((0, 0), (1, 1)), ((0, 0), (2, 0), (2, 1), (1, 1))])
+        result = linemerge(lines2)
+        assert result.is_ring
+        assert len(result.coords) == 5
+
+        lines3 = [
+            LineString([(0, 0), (1, 1)]),
+            LineString([(0, 0), (0, 1)]),
+        ]
+        result = linemerge(lines3)
+        assert not result.is_ring
+        assert len(result.coords) == 3
+        assert result.coords[0] == (0.0, 1.0)
+        assert result.coords[2] == (1.0, 1.0)
+
+        lines4 = [
+            [(0, 0), (1, 1)],
+            [(0, 0), (0, 1)],
+        ]
+        assert result.equals(linemerge(lines4))
+
+        lines5 = [
+            ((0, 0), (1, 1)),
+            ((1, 0), (0, 1)),
+        ]
+        result = linemerge(lines5)
+        assert result.geom_type == "MultiLineString"