diff --git a/__test__/Polyline/PointInPolyline.test.ts b/__test__/Polyline/PointInPolyline.test.ts
index a20f06791..157892baa 100644
--- a/__test__/Polyline/PointInPolyline.test.ts
+++ b/__test__/Polyline/PointInPolyline.test.ts
@@ -176,7 +176,20 @@ describe("", () =>
         f.Read();
         let pl = f.ReadObject() as Polyline;
 
-        pl.PtInCurve(p);//?
+        expect(pl.PtInCurve(p)).toBeFalsy();
+    });
+
+    test('同样是因为精度导致的错误IKOTO', () =>
+    {
+        let f = new CADFile();
+        f.Data =
+            [1, ["Polyline", 1, 1, 4, false, 2, -1, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 2.1413261486708848, -0.2136470533821324, 0, 1], 2, 5, [376.7856405585377, -104.2720901386406], -0.9999999999999999, [378.6693614887703, -104.2720901386406], 0, [378.4693614887703, -104.2720901386406], 0.9999999999999999, [376.9856405585377, -104.2720901386406], 0, [376.7856405585377, -104.2720901386406], 0, false]]
+
+        let p = new Vector3().fromArray([380.6106876374412, -106.61364416876692, 0]);
+
+        f.Read();
+        let pl = f.ReadObject() as Polyline;
+        expect(pl.PtInCurve(p)).toBeFalsy();
     });
 
 })