Diffusion Ant (master) Code

ant/tests/test_object_fromentries_iterables.cjs
457d5953e6c8master

test_object_fromentries_iterables.cjs
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			const assert = require("node:assert");

			assert.deepStrictEqual(
			Object.fromEntries(new Map([
			["a", 1],
			["b", 2],
			])),
			{ a: 1, b: 2 },
			);

			function* pairGenerator() {
			yield ["x", 10];
			yield ["y", 20];
			}

			assert.deepStrictEqual(
			Object.fromEntries(pairGenerator()),
			{ x: 10, y: 20 },
			);

			const iterable = {
			[Symbol.iterator]: function* () {
			yield ["left", "right"];
			yield ["up", "down"];
			},
			};

			assert.deepStrictEqual(
			Object.fromEntries(iterable),
			{ left: "right", up: "down" },
			);

			class RequestContextLike {
			constructor() {
			this.registry = new Map();
			}

			set(key, value) {
			this.registry.set(key, value);
			}

			entries() {
			return this.registry.entries();
			}
			}

			const ctx = new RequestContextLike();
			ctx.set("harness", {
			state: { projectPath: "/tmp/project" },
			getState() {
			return this.state;
			},
			});

			const snapshot = Object.fromEntries(ctx.entries());
			assert.strictEqual(snapshot.harness.getState().projectPath, "/tmp/project");

			let invalidEntryError;
			try {
			Object.fromEntries((function* () { yield 1; })());
			} catch (error) {
			invalidEntryError = error;
			}

			assert.ok(invalidEntryError instanceof Error);
			assert.match(String(invalidEntryError), /requires an iterable\|entry object/);

			console.log("Object.fromEntries consumes Map iterators, generators, and custom iterables");

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