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'use strict';
const common = require('../common');
const assert = require('assert');
const util = require('util');
// Template tag function turning an error message into a RegExp
// for assert.throws()
function re(literals, ...values) {
let result = literals[0];
for (const [i, value] of values.entries()) {
const str = util.inspect(value);
// Need to escape special characters.
result += str.replace(/[\\^$.*+?()[\]{}|=!<>:-]/g, '\\$&');
result += literals[i + 1];
}
return common.expectsError({
code: 'ERR_ASSERTION',
message: new RegExp(`^${result}$`)
});
}
// Turn off no-restricted-properties because we are testing deepEqual!
/* eslint-disable no-restricted-properties */
// See https://github.com/nodejs/node/issues/10258
{
const date = new Date('2016');
function FakeDate() {}
FakeDate.prototype = Date.prototype;
const fake = new FakeDate();
assert.doesNotThrow(() => assert.deepEqual(date, fake));
assert.doesNotThrow(() => assert.deepEqual(fake, date));
// For deepStrictEqual we check the runtime type,
// then reveal the fakeness of the fake date
assert.throws(() => assert.deepStrictEqual(date, fake),
re`${date} deepStrictEqual Date {}`);
assert.throws(() => assert.deepStrictEqual(fake, date),
re`Date {} deepStrictEqual ${date}`);
}
{ // At the moment global has its own type tag
const fakeGlobal = {};
Object.setPrototypeOf(fakeGlobal, Object.getPrototypeOf(global));
for (const prop of Object.keys(global)) {
fakeGlobal[prop] = global[prop];
}
assert.doesNotThrow(() => assert.deepEqual(fakeGlobal, global));
// Message will be truncated anyway, don't validate
assert.throws(() => assert.deepStrictEqual(fakeGlobal, global),
assert.AssertionError);
}
{ // At the moment process has its own type tag
const fakeProcess = {};
Object.setPrototypeOf(fakeProcess, Object.getPrototypeOf(process));
for (const prop of Object.keys(process)) {
fakeProcess[prop] = process[prop];
}
assert.doesNotThrow(() => assert.deepEqual(fakeProcess, process));
// Message will be truncated anyway, don't validate
assert.throws(() => assert.deepStrictEqual(fakeProcess, process),
assert.AssertionError);
}
/* eslint-enable */