#2733 Add error if level exceeds 9

src/file/numbering/level.spec.ts

@@ -0,0 +1,25 @@
+import { expect } from "chai";
+
+import { LevelFormat, LevelSuffix } from ".";
+import { AlignmentType } from "..";
+
+import { Level } from "./level";
+
+describe("Level", () => {
+    describe("#constructor", () => {
+        it("should throw an error if level exceeds 9", () => {
+            expect(
+                () =>
+                    new Level({
+                        level: 10,
+                        format: LevelFormat.BULLET,
+                        text: "test",
+                        alignment: AlignmentType.BOTH,
+                        start: 3,
+                        style: { run: {}, paragraph: {} },
+                        suffix: LevelSuffix.SPACE,
+                    }),
+            ).to.throw();
+        });
+    });
+});