import { validateJSON } from './validateJson';

describe('validateJSON function', () => {
  it('should return true for valid JSON', () => {
    const jsonString = '{"name": "John", "age": 30}';
    expect(validateJSON(jsonString)).toBe(true);
  });

  it('should return false for invalid JSON', () => {
    const invalidJSONString = '{"name": "John", age: 30}';
    expect(validateJSON(invalidJSONString)).toBe(false);
  });

  it('should return false for non-string input', () => {
    const nonStringInput = 123;
    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    // @ts-ignore
    expect(validateJSON(nonStringInput)).toBe(false);
  });

  it('should return false for empty string', () => {
    const emptyString = '';
    expect(validateJSON(emptyString)).toBe(false);
  });

  it('should return false for non-JSON string', () => {
    const nonJSONString = 'This is not a valid JSON string';
    expect(validateJSON(nonJSONString)).toBe(false);
  });
});