import { describe, it, expect } from 'vitest';
import { parseNDJSON, tryParseJSON } from '../lib/super.js';
describe('parseNDJSON', () => {
it('parses single-line JSON', () => {
const result = parseNDJSON('{"a":1}\n');
expect(result).toEqual([{ a: 1 }]);
});
it('parses multiple lines', () => {
const result = parseNDJSON('{"a":1}\n{"b":2}\n{"c":3}\n');
expect(result).toEqual([{ a: 1 }, { b: 2 }, { c: 3 }]);
});
it('handles trailing newlines and blank lines', () => {
const result = parseNDJSON('{"a":1}\n\n{"b":2}\n\n');
expect(result).toEqual([{ a: 1 }, { b: 2 }]);
});
it('parses arrays in NDJSON', () => {
const result = parseNDJSON('[1,2]\n[3,4]\n');
expect(result).toEqual([[1, 2], [3, 4]]);
});
it('parses primitive values', () => {
const result = parseNDJSON('42\n"hello"\ntrue\nnull\n');
expect(result).toEqual([42, 'hello', true, null]);
});
it('throws on invalid JSON lines', () => {
expect(() => parseNDJSON('not json\n')).toThrow();
});
it('returns empty array for empty input', () => {
const result = parseNDJSON('');
expect(result).toEqual([]);
});
it('returns empty array for whitespace-only input', () => {
const result = parseNDJSON(' \n \n ');
expect(result).toEqual([]);
});
});
describe('tryParseJSON', () => {
it('parses valid JSON object', () => {
expect(tryParseJSON('{"key":"value"}')).toEqual({ key: 'value' });
});
it('parses valid JSON array', () => {
expect(tryParseJSON('[1,2,3]')).toEqual([1, 2, 3]);
});
it('parses JSON primitives', () => {
expect(tryParseJSON('42')).toBe(42);
expect(tryParseJSON('"hello"')).toBe('hello');
expect(tryParseJSON('true')).toBe(true);
expect(tryParseJSON('null')).toBeNull();
});
it('returns null for invalid JSON', () => {
expect(tryParseJSON('not json')).toBeNull();
expect(tryParseJSON('{broken')).toBeNull();
expect(tryParseJSON('')).toBeNull();
});
});
