From 3575610518b30c85ce1eeb530a72dbedaa981272 Mon Sep 17 00:00:00 2001
From: Rafael Schouten <rafaelschouten@gmail.com>
Date: Mon, 20 Oct 2025 15:59:29 +1100
Subject: [PATCH] add tests for simplifying small rings

---
 test/transformations/simplify.jl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/transformations/simplify.jl b/test/transformations/simplify.jl
index 1661c566a1..d0fa2d3f5a 100644
--- a/test/transformations/simplify.jl
+++ b/test/transformations/simplify.jl
@@ -41,3 +41,9 @@ end
         @test all(GI.coordinates(GO.simplify($linestring; tol = 100.0)) .== lg_vals)
     end
 end
+
+@testset "Simplify small LinearRing" begin
+    lr = GI.LinearRing([(1, 1), (2, 2), (3, 3), (4, 4), (1, 1)])
+    @test GI.npoint(GO.simplify(lr, tol=10)) == 3
+    @test GI.npoint(GO.simplify(lr, number=3)) == 3
+end
\ No newline at end of file