import { describe, expect, it } from "vitest";

import { chunkMarkdown } from "./internal.js";

describe("chunkMarkdown", () => {
  it("splits overly long lines into max-sized chunks", () => {
    const chunkTokens = 400;
    const maxChars = chunkTokens * 4;
    const content = "a".repeat(maxChars * 3 + 25);
    const chunks = chunkMarkdown(content, { tokens: chunkTokens, overlap: 0 });
    expect(chunks.length).toBeGreaterThan(1);
    for (const chunk of chunks) {
      expect(chunk.text.length).toBeLessThanOrEqual(maxChars);
    }
  });
});