Add math limit component (#2510)

src/file/paragraph/math/n-ary/math-limit.spec.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from "vitest";
+
+import { Formatter } from "@export/formatter";
+
+import { MathRun } from "../math-run";
+import { MathLimit } from "./math-limit";
+
+describe("MathLimit", () => {
+    describe("#constructor()", () => {
+        it("should create a MathLimit with correct root key", () => {
+            const mathLimit = new MathLimit([new MathRun("x→0")]);
+
+            const tree = new Formatter().format(mathLimit);
+            expect(tree).to.deep.equal({
+                "m:lim": [
+                    {
+                        "m:r": [
+                            {
+                                "m:t": ["x→0"],
+                            },
+                        ],
+                    },
+                ],
+            });
+        });
+    });
+});