import processPostData from '../process-post-data';

describe('processPostData 函数', () => {
  it('当 method 不等于 "POST"，data 存在且 runParams 存在时，返回 data', () => {
    const result = processPostData({
      method: 'GET',
      data: { id: 30 },
      runParams: { name: 'John', age: 30 },
    });

    expect(result).toEqual({ id: 30 });
  });

  it('当 method 不等于 "POST"，data 不存在且 runParams 存在时，返回 undefined', () => {
    const result = processPostData({
      method: 'GET',
      runParams: { name: 'John', age: 30 },
    });

    expect(result).toEqual(undefined);
  });

  it('当 method 不等于 "POST"，data 存在且 runParams 不存在时，返回 data', () => {
    const result = processPostData({
      method: 'GET',
      data: { name: 'John', age: 30 },
    });

    expect(result).toEqual({ name: 'John', age: 30 });
  });

  it('当 contentType 等于 "application/x-www-form-urlencoded" 时，处理 runParams 和 data，并返回结果', () => {
    const result = processPostData({
      method: 'POST',
      contentType: 'application/x-www-form-urlencoded',
      runParams: { name: 'John', age: 30 },
      data: { email: 'john@example.com' },
    });

    expect(result).toBe('name=John&age=30&email=john%40example.com');
  });

  it('当 contentType 不等于 "application/x-www-form-urlencoded" 时，处理 runParams 和 data，并返回结果', () => {
    const result = processPostData({
      method: 'POST',
      contentType: 'application/json',
      runParams: { name: 'John', age: 30 },
      data: { email: 'john@example.com' },
    });

    expect(result).toEqual({
      name: 'John',
      age: 30,
      email: 'john@example.com',
    });
  });

  it('当 formatParam 是存在时，调用 formatParam 并返回结果', () => {
    const formatParam = jest.fn((params) => `Formatted: ${params}`);
    const result = processPostData({
      contentType: 'application/x-www-form-urlencoded',
      method: 'POST',
      runParams: { name: 'John', age: 30 },
      data: { email: 'john@example.com' },
      formatParam,
    });

    expect(formatParam).toHaveBeenCalledWith(
      'name=John&age=30&email=john%40example.com',
    );
    expect(result).toBe('Formatted: name=John&age=30&email=john%40example.com');
  });

  it('当 formatParam 不存在时，返回处理后的结果', () => {
    const result = processPostData({
      method: 'POST',
      runParams: { name: 'John', age: 30 },
      data: { email: 'john@example.com' },
    });

    expect(result).toEqual({
      name: 'John',
      age: 30,
      email: 'john@example.com',
    });
  });

  it('当 data 不存在，runParams 存在时，返回值为 runParams', () => {
    const options = {
      contentType: 'application/json',
      method: 'POST',
      runParams: { key: 'value' },
    };

    const result = processPostData(options);

    expect(result).toEqual(options.runParams);
  });

  it('当 data 存在，runParams 不存在时，返回值为 data', () => {
    const options = {
      contentType: 'application/json',
      method: 'POST',
      data: { key: 'value' },
    };

    const result = processPostData(options);

    expect(result).toEqual(options.data);
  });

  it('当 data 不存在，runParams 存在且 contentType 不是 "application/x-www-form-urlencoded" 时，返回 runParams 的值', () => {
    const options = {
      contentType: 'application/json',
      method: 'POST',
      runParams: { id: 1 },
    };

    const result = processPostData(options);

    expect(result).toEqual(options.runParams);
  });

  it('当 data 不存在，runParams 存在且 contentType 是 "application/x-www-form-urlencoded" 时，处理 runParams，并返回结果', () => {
    const options = {
      contentType: 'application/x-www-form-urlencoded',
      method: 'POST',
      runParams: { id: 1 },
    };

    const result = processPostData(options);

    expect(result).toBe('id=1');
  });

  it('当 data 存在，runParams 不存在且 contentType 不是 "application/x-www-form-urlencoded" 时，返回 data 的值', () => {
    const options = {
      contentType: 'application/json',
      method: 'POST',
      data: { name: 'John' },
    };

    const result = processPostData(options);

    expect(result).toEqual(options.data);
  });

  it('当 data 存在，runParams 不存在且 contentType 是 "application/x-www-form-urlencoded" 时，处理 data，并返回结果', () => {
    const options = {
      contentType: 'application/x-www-form-urlencoded',
      method: 'POST',
      data: { name: 'John', age: 30, email: 'john@example.com' },
    };

    const result = processPostData(options);

    expect(result).toBe('name=John&age=30&email=john%40example.com');
  });
});