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assert,util: fix commutativity edge case #37711

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merged 1 commit into from Mar 13, 2021
+11 −1
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assert,util: fix commutativity edge case #37711

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2 changes: 1 addition & 1 deletion lib/internal/util/comparisons.js
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Expand Up @@ -282,7 +282,7 @@ function keyCheck(val1, val2, strict, memos, iterationType, aKeys) {
// Cheap key test
let i = 0;
for (; i < aKeys.length; i++) {
if (!ObjectPrototypeHasOwnProperty(val2, aKeys[i])) {
if (!ObjectPrototypePropertyIsEnumerable(val2, aKeys[i])) {
return false;
}
}
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10 changes: 10 additions & 0 deletions test/parallel/test-assert-deep.js
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Expand Up @@ -1194,3 +1194,13 @@ assert.throws(
Object.setPrototypeOf(b, null);
assertNotDeepOrStrict(a, b, assert.AssertionError);
}

{
// Verify commutativity
// Regression test for https://github.com/nodejs/node/issues/37710
const a = { x: 1 };
const b = { y: 1 };
Object.defineProperty(b, 'x', { value: 1 });

assertNotDeepOrStrict(a, b);
}