import { describe, expect, it } from "vitest";
import { parseInlinePathToken } from "./inline-path";

describe("parseInlinePathToken", () => {
  it("returns null for plain paths (no line)", () => {
    expect(parseInlinePathToken("src/app.ts")).toBeNull();
    expect(parseInlinePathToken("README.md")).toBeNull();
  });

  it("parses filename:line", () => {
    expect(parseInlinePathToken("src/app.ts:12")).toEqual({
      raw: "src/app.ts:12",
      path: "src/app.ts",
      lineStart: 12,
      lineEnd: undefined,
    });
  });

  it("parses filename:lineStart-lineEnd", () => {
    expect(parseInlinePathToken("src/app.ts:12-20")).toEqual({
      raw: "src/app.ts:12-20",
      path: "src/app.ts",
      lineStart: 12,
      lineEnd: 20,
    });
  });

  it("rejects range-only :line tokens", () => {
    expect(parseInlinePathToken(":12")).toBeNull();
    expect(parseInlinePathToken(":12-20")).toBeNull();
  });
});