refactor(formats): check zone region points are 2-tuples

libs/formats/zone/src/zone-validator.spec.ts

@@ -201,6 +201,22 @@ describe('validateZoneFile', () => {
       );
     });
 
+    it('should throw if a regions point are not a 2-tuple', () => {
+      input.tracks.main.zones.segments[0].checkpoints[0].regions[0].points[0] =
+        [0, 0, 0] as any;
+
+      expect(() => validateZoneFile(input)).toThrow(
+        'Track Main segment 1 start zone region 0 point 0 is not a 2-tuple'
+      );
+
+      input.tracks.main.zones.segments[0].checkpoints[0].regions[0].points[0] =
+        [0, 'i can hear the voice of God'] as any;
+
+      expect(() => validateZoneFile(input)).toThrow(
+        'Track Main segment 1 start zone region 0 point 0 is not a 2-tuple'
+      );
+    });
+
     it('should throw if a region has no bottom position', () => {
       input.tracks.main.zones.segments[0].checkpoints[0].regions[0].bottom =
         undefined;

libs/formats/zone/src/zone-validator.ts

@@ -269,6 +269,12 @@ export function validateZoneFile(input: MapZones): void {
         thr('is too high');
       }
 
+      for (const [i, point] of region.points.entries()) {
+        if (point.length !== 2 || !point.every((p) => !Number.isNaN(+p))) {
+          thr(`point ${i} is not a 2-tuple`);
+        }
+      }
+
       const MIN_DIST = 4;
       const MIN_ANGLE = Math.PI * (15 / 180);