fix(assert): make prototype of Object.prototype not equal undefined prototype #6484
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WWRS
commented
Mar 17, 2025
| @@ -383,6 +383,18 @@ Deno.test("equal() with constructor and prototype", async (t) => { | |||
| }); | |||
| }); | |||
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| Deno.test("equal() considers object with prototype Object.prototype not equal to object with no prototype", () => { | |||
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Is this too long a name? Suggestions on making it shorter?
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Changed to draft because I realized this makes behavior different when objects have properties: #6334 (comment) |
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Fixes #6334
These were previously hardcoded to be equal, and I'm not completely sure why. I hope I'm not missing something.
It's not mentioned in the PR when it was added (#6153). I suspect it was a port of the old system, where constructors were checked rather than prototypes: Undefined constructor could equal Object constructor. But undefined prototype should not equal Object prototype.