René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Misleading error message","articleBody":"\u003c!--\r\nThank you for reporting a possible bug in Node.js.\r\n\r\nPlease fill in as much of the template below as you can.\r\n\r\nVersion: output of `node -v`\r\nPlatform: output of `uname -a` (UNIX), or version and 32 or 64-bit (Windows)\r\nSubsystem: if known, please specify the affected core module name\r\n\r\nIf possible, please provide code that demonstrates the problem, keeping it as\r\nsimple and free of external dependencies as you can.\r\n--\u003e\r\n\r\n* **Version**: v11.4.0\r\n* **Platform**: macOS\r\n* **Subsystem**: assert\r\n\r\n\u003c!-- Please provide more details below this comment. --\u003e\r\n\r\n```\r\n$ cat t.js \r\nconst assert = require('assert');\r\n\r\nfunction StorageObject() {}\r\nStorageObject.prototype = Object.create(null);\r\n\r\nassert.deepStrictEqual(new StorageObject(), {});\r\n```\r\n\r\n```\r\n$ node t.js \r\nassert.js:86\r\n  throw new AssertionError(obj);\r\n  ^\r\n\r\nAssertionError [ERR_ASSERTION]: Values identical but not reference-equal:\r\n\r\n{}\r\n\r\n    at Object.\u003canonymous\u003e (/Users/luigi/t.js:6:8)\r\n    at Module._compile (internal/modules/cjs/loader.js:723:30)\r\n    at Object.Module._extensions..js (internal/modules/cjs/loader.js:734:10)\r\n    at Module.load (internal/modules/cjs/loader.js:620:32)\r\n    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)\r\n    at Function.Module._load (internal/modules/cjs/loader.js:552:3)\r\n    at Function.Module.runMain (internal/modules/cjs/loader.js:776:12)\r\n    at executeUserCode (internal/bootstrap/node.js:342:17)\r\n    at startExecution (internal/bootstrap/node.js:276:5)\r\n    at startup (internal/bootstrap/node.js:227:5)\r\n```\r\n\r\nThe assertion fails because the objects have a different prototype. The same assertion produces a different message in other cases, for example:\r\n\r\n```\r\n$ cat t.js \r\nconst assert = require('assert');\r\n\r\nassert.deepStrictEqual(Object.create(null), {});\r\n```\r\n\r\n```\r\n$ node t.js \r\nassert.js:86\r\n  throw new AssertionError(obj);\r\n  ^\r\n\r\nAssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal:\r\n+ actual - expected\r\n\r\n+ [Object: null prototype] {}\r\n- {}\r\n    at Object.\u003canonymous\u003e (/Users/luigi/t.js:3:8)\r\n    at Module._compile (internal/modules/cjs/loader.js:723:30)\r\n    at Object.Module._extensions..js (internal/modules/cjs/loader.js:734:10)\r\n    at Module.load (internal/modules/cjs/loader.js:620:32)\r\n    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)\r\n    at Function.Module._load (internal/modules/cjs/loader.js:552:3)\r\n    at Function.Module.runMain (internal/modules/cjs/loader.js:776:12)\r\n    at executeUserCode (internal/bootstrap/node.js:342:17)\r\n    at startExecution (internal/bootstrap/node.js:276:5)\r\n    at startup (internal/bootstrap/node.js:227:5)\r\n```\r\n\r\ncc: @BridgeAR ","author":{"url":"https://github.com/lpinca","@type":"Person","name":"lpinca"},"datePublished":"2018-12-09T09:14:11.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/24917/node/issues/24917"}