import { describe, it, expect } from "bun:test";
import { parseSemver, bumpVersion } from "../../scripts/release";

describe("parseSemver", () => {
  it("解析标准版本号 1.2.3", () => {
    expect(parseSemver("1.2.3")).toEqual({ major: 1, minor: 2, patch: 3 });
  });
  it("解析 0.0.0", () => {
    expect(parseSemver("0.0.0")).toEqual({ major: 0, minor: 0, patch: 0 });
  });
  it("解析大版本号 99.999.1", () => {
    expect(parseSemver("99.999.1")).toEqual({ major: 99, minor: 999, patch: 1 });
  });
  it("非三位格式抛出异常", () => {
    expect(() => parseSemver("1.2")).toThrow("无效的版本号格式");
    expect(() => parseSemver("1.2.3.4")).toThrow("无效的版本号格式");
  });
  it("非数字格式抛出异常", () => {
    expect(() => parseSemver("a.b.c")).toThrow("无效的版本号格式");
    expect(() => parseSemver("1.2.3-beta")).toThrow("无效的版本号格式");
  });
  it("负数抛出异常", () => {
    expect(() => parseSemver("-1.2.3")).toThrow("无效的版本号格式");
  });
  it("四段格式抛出异常", () => {
    expect(() => parseSemver("1.5.3.2")).toThrow("无效的版本号格式");
  });
});

describe("bumpVersion", () => {
  it("major 递增：0.1.0 → 1.0.0", () => {
    expect(bumpVersion("0.1.0", "major")).toBe("1.0.0");
  });
  it("minor 递增：0.1.0 → 0.2.0", () => {
    expect(bumpVersion("0.1.0", "minor")).toBe("0.2.0");
  });
  it("patch 递增：0.1.0 → 0.1.1", () => {
    expect(bumpVersion("0.1.0", "patch")).toBe("0.1.1");
  });
  it("major 递增低位归零：1.5.3 → 2.0.0", () => {
    expect(bumpVersion("1.5.3", "major")).toBe("2.0.0");
  });
  it("minor 递增 patch 归零：1.5.3 → 1.6.0", () => {
    expect(bumpVersion("1.5.3", "minor")).toBe("1.6.0");
  });
  it("patch 递增不影响高位：1.5.3 → 1.5.4", () => {
    expect(bumpVersion("1.5.3", "patch")).toBe("1.5.4");
  });
  it("大数字递增正确", () => {
    expect(bumpVersion("99.999.1", "minor")).toBe("99.1000.0");
  });
  it("无效版本号抛出异常", () => {
    expect(() => bumpVersion("invalid", "minor")).toThrow("无效的版本号格式");
  });
});