import { describe, test, expect } from "bun:test";
import { parseToolsInput } from "../../src/utils/parse-tools-input";

describe("parseToolsInput", () => {
  test("returns empty array for undefined", () => {
    expect(parseToolsInput(undefined)).toEqual([]);
  });

  test("returns empty array for empty string", () => {
    expect(parseToolsInput("")).toEqual([]);
  });

  test("parses single tool", () => {
    expect(parseToolsInput("WebSearch")).toEqual(["WebSearch"]);
  });

  test("parses comma-separated tools", () => {
    expect(parseToolsInput("WebSearch,WebFetch")).toEqual([
      "WebSearch",
      "WebFetch",
    ]);
  });

  test("trims whitespace around tools", () => {
    expect(parseToolsInput(" WebSearch , WebFetch ")).toEqual([
      "WebSearch",
      "WebFetch",
    ]);
  });

  test("filters empty entries from trailing commas", () => {
    expect(parseToolsInput("WebSearch,,WebFetch,")).toEqual([
      "WebSearch",
      "WebFetch",
    ]);
  });

  test("handles tool patterns with special characters", () => {
    expect(
      parseToolsInput("Bash(npm test:*),mcp__github_ci__get_ci_status"),
    ).toEqual(["Bash(npm test:*)", "mcp__github_ci__get_ci_status"]);
  });
});