Clone engine262 in /engine262

engine262/test/json/json.js

@@ -0,0 +1,64 @@
+'use strict';
+
+/* eslint-disable no-await-in-loop */
+
+const fs = require('fs');
+const path = require('path');
+const glob = require('glob');
+const {
+  pass, fail, skip, total,
+} = require('../base');
+const {
+  Agent,
+  setSurroundingAgent,
+  ManagedRealm,
+  AbruptCompletion,
+  inspect,
+} = require('../..');
+
+const BASE_DIR = path.resolve(__dirname, 'JSONTestSuite');
+
+const agent = new Agent();
+setSurroundingAgent(agent);
+
+function test(filename) {
+  const realm = new ManagedRealm();
+
+  const source = fs.readFileSync(filename, 'utf8');
+
+  let result;
+  try {
+    result = realm.evaluateScript(`'use strict';
+const source = ${JSON.stringify(source)};
+JSON.parse(source);
+`);
+  } catch {
+    // ...
+  }
+
+  const testName = path.basename(filename);
+
+  if (!result || result instanceof AbruptCompletion) {
+    if (testName.startsWith('n_')) {
+      pass();
+    } else if (testName.startsWith('i_')) {
+      skip();
+    } else {
+      fail(testName, inspect(result));
+    }
+  } else {
+    if (testName.startsWith('n_')) {
+      fail(testName, 'JSON parsed but should have failed!');
+    } else {
+      pass();
+    }
+  }
+}
+
+const tests = glob.sync(`${path.resolve(BASE_DIR, 'test_parsing')}/**/*.json`)
+  .concat(glob.sync(`${path.resolve(BASE_DIR, 'test_transform')}/**/*.json`));
+
+tests.forEach((t) => {
+  total();
+  test(t);
+});