test-vm-basic.js

// Copyright Joyent, Inc. and other Node contributors.
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'use strict';
const common = require('../common');
const assert = require('assert');
const vm = require('vm');

// Test 1: vm.runInNewContext
const sandbox = {};
let result = vm.runInNewContext(
  'foo = "bar"; this.typeofProcess = typeof process; typeof Object;',
  sandbox
);
assert.deepStrictEqual(sandbox, {
  foo: 'bar',
  typeofProcess: 'undefined',
});
assert.strictEqual(result, 'function');

// Test 2: vm.runInContext
const sandbox2 = { foo: 'bar' };
const context = vm.createContext(sandbox2);
result = vm.runInContext(
  'baz = foo; this.typeofProcess = typeof process; typeof Object;',
  context
);
assert.deepStrictEqual(sandbox2, {
  foo: 'bar',
  baz: 'bar',
  typeofProcess: 'undefined'
});
assert.strictEqual(result, 'function');

// Test 3: vm.runInThisContext
result = vm.runInThisContext(
  'vmResult = "foo"; Object.prototype.toString.call(process);'
);
assert.strictEqual(global.vmResult, 'foo');
assert.strictEqual(result, '[object process]');
delete global.vmResult;

// Test 4: vm.runInNewContext
result = vm.runInNewContext(
  'vmResult = "foo"; typeof process;'
);
assert.strictEqual(global.vmResult, undefined);
assert.strictEqual(result, 'undefined');

// Test 5: vm.createContext
const sandbox3 = {};
const context2 = vm.createContext(sandbox3);
assert.strictEqual(sandbox3, context2);

// Test 6: invalid arguments
common.expectsError(() => {
  vm.createContext({}, null);
}, {
  code: 'ERR_INVALID_ARG_TYPE',
  type: TypeError,
  message: 'The "options" argument must be of type object. Received type null'
});

common.expectsError(() => {
  vm.createContext({}, 'string');
}, {
  code: 'ERR_INVALID_ARG_TYPE',
  type: TypeError,
  message: 'The "options" argument must be of type object. Received type string'
});

common.expectsError(() => {
  vm.createContext({}, { name: null });
}, {
  code: 'ERR_INVALID_ARG_TYPE',
  type: TypeError,
  message: 'The "options.name" property must be of type string. ' +
           'Received type null'
});

common.expectsError(() => {
  vm.createContext({}, { origin: null });
}, {
  code: 'ERR_INVALID_ARG_TYPE',
  type: TypeError,
  message: 'The "options.origin" property must be of type string. ' +
           'Received type null'
});

common.expectsError(() => {
  vm.runInNewContext('', {}, { contextName: null });
}, {
  code: 'ERR_INVALID_ARG_TYPE',
  type: TypeError,
  message: 'The "options.contextName" property must be of type string. ' +
           'Received type null'
});

common.expectsError(() => {
  vm.runInNewContext('', {}, { contextOrigin: null });
}, {
  code: 'ERR_INVALID_ARG_TYPE',
  type: TypeError,
  message: 'The "options.contextOrigin" property must be of type string. ' +
           'Received type null'
});