json-patch-test-suite

import * as fs from 'fs'; import * as path from 'path'; // IMPORTANT: This 'applyPatch' function is a placeholder. // You must integrate your actual JSON Patch implementation here // (e.g., from 'fast-json-patch', 'json-patch', etc.) const applyPatch = (doc: any, patch: any[]): any => { // In a real scenario, this would apply the patch and return the new document. // For this example, we'll simulate a success or throw an error based on patch content. if (!doc || !patch) throw new Error('Invalid input for patch application.'); if (patch.some((op: any) => op.path === '/invalid/path' && op.op === 'add')) { throw new Error('Simulated patch error: Invalid path operation.'); } return { ...doc, patched: true }; // Simulate a successful patch }; interface TestRecord { doc: any; patch: any[]; expected?: any; error?: string; comment?: string; disabled?: boolean; } // Dynamically resolve the path to the installed json-patch-test-suite package. // This is generally safer than assuming 'node_modules' directly. const resolvePackagePath = (packageName: string) => { try { return path.dirname(require.resolve(packageName + '/package.json')); } catch (e) { throw new Error(`Could not find package ${packageName}. Is it installed?`); } }; const suitePackagePath = resolvePackagePath('json-patch-test-suite'); const testsPath = path.join(suitePackagePath, 'tests.json'); const testSuite: TestRecord[] = JSON.parse(fs.readFileSync(testsPath, 'utf8')); let passedTests = 0; let failedTests = 0; console.log(`Running ${testSuite.length} JSON Patch tests from the suite...\n`); testSuite.forEach((test, index) => { if (test.disabled) { // console.log(`Skipping disabled test [${index + 1}]: ${test.comment}`); return; } try { const result = applyPatch(test.doc, test.patch); if (test.expected !== undefined) { if (JSON.stringify(result) === JSON.stringify(test.expected)) { passedTests++; } else { failedTests++; console.error(`FAIL [${index + 1}]: ${test.comment || 'Unnamed test'}`); console.error(' Doc:', JSON.stringify(test.doc)); console.error(' Patch:', JSON.stringify(test.patch)); console.error(' Expected:', JSON.stringify(test.expected)); console.error(' Got:', JSON.stringify(result)); console.error('--------------------------------------------------'); } } else if (test.error !== undefined) { failedTests++; console.error(`FAIL [${index + 1}]: ${test.comment || 'Unnamed test'} (Expected error, but patch succeeded)`); console.error('--------------------------------------------------'); } // If no expected/error, assume success if no exception } catch (e: any) { if (test.error !== undefined) { passedTests++; // We expected an error, and got one. Good enough for basic check. } else { failedTests++; console.error(`FAIL [${index + 1}]: ${test.comment || 'Unnamed test'} (Unexpected error)`); console.error(' Error:', e.message); console.error(' Doc:', JSON.stringify(test.doc)); console.error(' Patch:', JSON.stringify(test.patch)); console.error('--------------------------------------------------'); } } }); console.log(`\nTests finished: ${passedTests} passed, ${failedTests} failed.`); if (failedTests > 0) { process.exit(1); }