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test: refactor test-vm-new-script-new-context #14536

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test: refactor test-vm-new-script-new-context #14536

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123 changes: 70 additions & 53 deletions test/parallel/test-vm-new-script-new-context.js
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Original file line number Diff line number Diff line change
Expand Up @@ -20,71 +20,88 @@
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
const common = require('../common');
require('../common');

const assert = require('assert');

const Script = require('vm').Script;

common.globalCheck = false;
{
const script = new Script('\'passed\';');
const result1 = script.runInNewContext();
const result2 = script.runInNewContext();
assert.strictEqual('passed', result1);
assert.strictEqual('passed', result2);
}

console.error('run a string');
let script = new Script('\'passed\';');
console.error('script created');
const result1 = script.runInNewContext();
const result2 = script.runInNewContext();
assert.strictEqual('passed', result1);
assert.strictEqual('passed', result2);
{
const script = new Script('throw new Error(\'test\');');
assert.throws(function() {
script.runInNewContext();
}, /^Error: test$/);
}

console.error('thrown error');
script = new Script('throw new Error(\'test\');');
assert.throws(function() {
script.runInNewContext();
}, /^Error: test$/);
{
const script = new Script('foo.bar = 5;');
assert.throws(function() {
script.runInNewContext();
}, /^ReferenceError: foo is not defined$/);
}


console.error('undefined reference');
script = new Script('foo.bar = 5;');
assert.throws(function() {
{
global.hello = 5;
const script = new Script('hello = 2');
script.runInNewContext();
}, /^ReferenceError: foo is not defined$/);
assert.strictEqual(5, global.hello);

// cleanup
delete global.hello;
}

global.hello = 5;
script = new Script('hello = 2');
script.runInNewContext();
assert.strictEqual(5, global.hello);
{
global.code = 'foo = 1;' +
'bar = 2;' +
'if (baz !== 3) throw new Error(\'test fail\');';
global.foo = 2;
global.obj = { foo: 0, baz: 3 };
const script = new Script(global.code);
/* eslint-disable no-unused-vars */
const baz = script.runInNewContext(global.obj);
/* eslint-enable no-unused-vars */
assert.strictEqual(1, global.obj.foo);
assert.strictEqual(2, global.obj.bar);
assert.strictEqual(2, global.foo);

//cleanup
delete global.code;
delete global.foo;
delete global.obj;
}

console.error('pass values in and out');
global.code = 'foo = 1;' +
'bar = 2;' +
'if (baz !== 3) throw new Error(\'test fail\');';
global.foo = 2;
global.obj = { foo: 0, baz: 3 };
script = new Script(global.code);
/* eslint-disable no-unused-vars */
const baz = script.runInNewContext(global.obj);
/* eslint-enable no-unused-vars */
assert.strictEqual(1, global.obj.foo);
assert.strictEqual(2, global.obj.bar);
assert.strictEqual(2, global.foo);
{
const script = new Script('f()');
function changeFoo() { global.foo = 100; }
script.runInNewContext({ f: changeFoo });
assert.strictEqual(global.foo, 100);

console.error('call a function by reference');
script = new Script('f()');
function changeFoo() { global.foo = 100; }
script.runInNewContext({ f: changeFoo });
assert.strictEqual(global.foo, 100);
// cleanup
delete global.foo;
}

console.error('modify an object by reference');
script = new Script('f.a = 2');
const f = { a: 1 };
script.runInNewContext({ f: f });
assert.strictEqual(f.a, 2);
{
const script = new Script('f.a = 2');
const f = { a: 1 };
script.runInNewContext({ f: f });
assert.strictEqual(f.a, 2);

assert.throws(function() {
script.runInNewContext();
}, /^ReferenceError: f is not defined$/);
assert.throws(function() {
script.runInNewContext();
}, /^ReferenceError: f is not defined$/);
}

console.error('invalid this');
assert.throws(function() {
script.runInNewContext.call('\'hello\';');
}, /^TypeError: this\.runInContext is not a function$/);
{
const script = new Script('');
assert.throws(function() {
script.runInNewContext.call('\'hello\';');
}, /^TypeError: this\.runInContext is not a function$/);
}