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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect } from 'vitest';
import { safeJsonStringify } from './safeJsonStringify.js';
describe('safeJsonStringify', () => {
it('should stringify normal objects without issues', () => {
const obj = { name: 'test', value: 42 };
const result = safeJsonStringify(obj);
expect(result).toBe('{"name":"test","value":42}');
});
it('should handle circular references by replacing them with [Circular]', () => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const obj: any = { name: 'test' };
obj.circular = obj; // Create circular reference
const result = safeJsonStringify(obj);
expect(result).toBe('{"name":"test","circular":"[Circular]"}');
});
it('should handle complex circular structures like HttpsProxyAgent', () => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const agent: any = {
sockets: {},
options: { host: 'example.com' },
};
agent.sockets['example.com'] = [{ agent }];
const result = safeJsonStringify(agent);
expect(result).toContain('[Circular]');
expect(result).toContain('example.com');
});
it('should respect the space parameter for formatting', () => {
const obj = { name: 'test', value: 42 };
const result = safeJsonStringify(obj, 2);
expect(result).toBe('{\n "name": "test",\n "value": 42\n}');
});
it('should handle circular references with formatting', () => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const obj: any = { name: 'test' };
obj.circular = obj;
const result = safeJsonStringify(obj, 2);
expect(result).toBe('{\n "name": "test",\n "circular": "[Circular]"\n}');
});
it('should handle arrays with circular references', () => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const arr: any[] = [{ id: 1 }];
arr[0].parent = arr; // Create circular reference
const result = safeJsonStringify(arr);
expect(result).toBe('[{"id":1,"parent":"[Circular]"}]');
});
it('should handle null and undefined values', () => {
expect(safeJsonStringify(null)).toBe('null');
expect(safeJsonStringify(undefined)).toBe(undefined);
});
it('should handle primitive values', () => {
expect(safeJsonStringify('test')).toBe('"test"');
expect(safeJsonStringify(42)).toBe('42');
expect(safeJsonStringify(true)).toBe('true');
});
});
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