test_define_property_strict.js
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test_define_property_strict.js
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	"use strict";

	// Test Object.defineProperty() in strict mode

	const object = {};

	Object.defineProperty(object, "foo", {
	value: 42,
	writable: false,
	});

	console.log("object.foo =", object.foo);

	// Try to modify in strict mode (should throw)
	try {
	object.foo = 77;
	console.log("FAIL: Should have thrown an error");
	} catch (e) {
	console.log("PASS: Correctly throws in strict mode");
	console.log("object.foo still =", object.foo);
	}

	// Test non-configurable property
	const obj2 = {};
	Object.defineProperty(obj2, "bar", {
	value: "hello",
	configurable: false
	});

	try {
	obj2.bar = "world";
	console.log("FAIL: Should have thrown an error for non-configurable");
	} catch (e) {
	console.log("PASS: Correctly throws for non-configurable in strict mode");
	console.log("obj2.bar still =", obj2.bar);
	}

	// Test enumerable
	const obj3 = {};
	Object.defineProperty(obj3, "hidden", {
	value: "secret",
	enumerable: false
	});

	Object.defineProperty(obj3, "visible", {
	value: "public",
	enumerable: true
	});

	console.log("\nKeys of obj3:", Object.keys(obj3));
	console.log("Expected: only 'visible' should be in keys");

	console.log("\nAll strict mode tests passed!");

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