test.js

#!/usr/bin/env node

// Simple test suite for json-formatter-cli
const { execSync } = require('child_process');
const fs = require('fs');

console.log('Running tests...\n');

let passed = 0;
let failed = 0;

function test(name, fn) {
  try {
    fn();
    console.log(`✓ ${name}`);
    passed++;
  } catch (error) {
    console.log(`✗ ${name}`);
    console.log(`  ${error.message}`);
    failed++;
  }
}

// Create test file
const testJSON = { name: "test", value: 123, nested: { key: "value" } };
fs.writeFileSync('/tmp/test.json', JSON.stringify(testJSON));

test('Format valid JSON', () => {
  const output = execSync('echo \'{"a":1}\' | node index.js', { encoding: 'utf8' });
  if (!output.includes('"a"')) throw new Error('Output missing expected content');
});

test('Minify JSON', () => {
  const output = execSync('echo \'{"a": 1, "b": 2}\' | node index.js --minify', { encoding: 'utf8' });
  if (output.includes('  ')) throw new Error('Output should not contain spaces');
});

test('Validate valid JSON', () => {
  execSync('echo \'{"valid":true}\' | node index.js --validate');
});

test('Reject invalid JSON', () => {
  try {
    execSync('echo \'{invalid}\' | node index.js', { encoding: 'utf8' });
    throw new Error('Should have failed on invalid JSON');
  } catch (error) {
    if (error.status !== 1) throw error;
  }
});

test('Format from file', () => {
  const output = execSync('node index.js /tmp/test.json', { encoding: 'utf8' });
  if (!output.includes('"name"')) throw new Error('Output missing expected content');
});

// Cleanup
fs.unlinkSync('/tmp/test.json');

console.log(`\n${passed} passed, ${failed} failed`);
process.exit(failed > 0 ? 1 : 0);