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'use strict';
// Flags: --experimental-vm-modules
const common = require('../common');
const assert = require('assert');
const { SourceTextModule, createContext } = require('vm');
const util = require('util');
(async function test1() {
const context = createContext({
foo: 'bar',
baz: undefined,
typeofProcess: undefined,
});
const m = new SourceTextModule(
'baz = foo; typeofProcess = typeof process; typeof Object;',
{ context }
);
assert.strictEqual(m.status, 'unlinked');
await m.link(common.mustNotCall());
assert.strictEqual(m.status, 'linked');
const result = await m.evaluate();
assert.strictEqual(m.status, 'evaluated');
assert.strictEqual(Object.getPrototypeOf(result), null);
assert.deepStrictEqual(context, {
foo: 'bar',
baz: 'bar',
typeofProcess: 'undefined'
});
assert.strictEqual(result.result, 'function');
}());
(async () => {
const m = new SourceTextModule(
'global.vmResult = "foo"; Object.prototype.toString.call(process);'
);
await m.link(common.mustNotCall());
const { result } = await m.evaluate();
assert.strictEqual(global.vmResult, 'foo');
assert.strictEqual(result, '[object process]');
delete global.vmResult;
})();
(async () => {
const m = new SourceTextModule('while (true) {}');
await m.link(common.mustNotCall());
await m.evaluate({ timeout: 500 })
.then(() => assert(false), () => {});
})();
// Check the generated identifier for each module
(async () => {
const context1 = createContext({ });
const context2 = createContext({ });
const m1 = new SourceTextModule('1', { context: context1 });
assert.strictEqual(m1.identifier, 'vm:module(0)');
const m2 = new SourceTextModule('2', { context: context1 });
assert.strictEqual(m2.identifier, 'vm:module(1)');
const m3 = new SourceTextModule('3', { context: context2 });
assert.strictEqual(m3.identifier, 'vm:module(0)');
})();
// Check inspection of the instance
{
const context = createContext({ foo: 'bar' });
const m = new SourceTextModule('1', { context });
assert.strictEqual(
util.inspect(m),
`SourceTextModule {
status: 'unlinked',
identifier: 'vm:module(0)',
context: { foo: 'bar' }
}`
);
assert.strictEqual(
m[util.inspect.custom].call(Object.create(null)),
`SourceTextModule {
status: undefined,
identifier: undefined,
context: undefined
}`,
);
assert.strictEqual(util.inspect(m, { depth: -1 }), '[SourceTextModule]');
}
// Check dependencies getter returns same object every time
{
const m = new SourceTextModule('');
const dep = m.dependencySpecifiers;
assert.notStrictEqual(dep, undefined);
assert.strictEqual(dep, m.dependencySpecifiers);
}
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