From cb753733269aa54a37714113607aa924fdab436f Mon Sep 17 00:00:00 2001
From: Adrien Berchet <adrien.berchet@gmail.com>
Date: Wed, 10 Jul 2024 17:07:27 +0200
Subject: [PATCH] Fix: Can handle negative coordinates with Spatialite

---
 geoalchemy2/elements.py  |  2 +-
 tests/test_functional.py | 26 ++++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/geoalchemy2/elements.py b/geoalchemy2/elements.py
index d836a77e..dffaa389 100644
--- a/geoalchemy2/elements.py
+++ b/geoalchemy2/elements.py
@@ -117,7 +117,7 @@ class WKTElement(_SpatialElement):
     """
 
     _REMOVE_SRID = re.compile("(SRID=([0-9]+); ?)?(.*)")
-    SPLIT_WKT_PATTERN = re.compile(r"((SRID=\d+) *; *)?([\w ]+) *(\([\d\. ,\(\)]+\))")
+    SPLIT_WKT_PATTERN = re.compile(r"((SRID=\d+) *; *)?([\w ]+) *(\([-\d\. ,\(\)]+\))")
 
     geom_from: str = "ST_GeomFromText"
     geom_from_extended_version: str = "ST_GeomFromEWKT"
diff --git a/tests/test_functional.py b/tests/test_functional.py
index c9d7b143..4702cbdb 100644
--- a/tests/test_functional.py
+++ b/tests/test_functional.py
@@ -445,6 +445,32 @@ def test_insert_geom_poi(self, conn, Poi, setup_tables):
             assert srid == 4326
             assert row[1] == from_shape(Point(1, 1), srid=4326, extended=True)
 
+    def test_insert_negative_coords(self, conn, Poi, setup_tables, dialect_name):
+        conn.execute(
+            Poi.__table__.insert(),
+            [
+                {"geom": "SRID=4326;POINT(-1 1)"},
+                {"geom": WKTElement("POINT(-1 1)", srid=4326)},
+                {"geom": WKTElement("SRID=4326;POINT(-1 1)", extended=True)},
+                {"geom": from_shape(Point(-1, 1), srid=4326)},
+                {"geom": from_shape(Point(-1, 1), srid=4326, extended=True)},
+            ],
+        )
+
+        results = conn.execute(Poi.__table__.select())
+        rows = results.fetchall()
+
+        for row in rows:
+            assert isinstance(row[1], WKBElement)
+            wkt = conn.execute(row[1].ST_AsText()).scalar()
+            assert format_wkt(wkt) == "POINT(-1 1)"
+            srid = conn.execute(row[1].ST_SRID()).scalar()
+            assert srid == 4326
+            if dialect_name == "mysql":
+                assert row[1] == from_shape(Point(-1, 1), srid=4326)
+            else:
+                assert row[1] == from_shape(Point(-1, 1), srid=4326, extended=True)
+
 
 class TestSelectBindParam:
     @pytest.fixture