learnharness/tests/graph-view-filters.test.ts

/**
 * Legend/filters predicate tests — the pure half of the graph-view filters
 * panel (isNodeVisible); the sigma reducers just consume its verdict.
 */

import assert from "node:assert/strict";
import { describe, it } from "node:test";
import { isNodeVisible } from "../components/graph-view.tsx";

const node = {
	name: "Money multiplier",
	statement: "The maximum ratio of broad money a bank can create from each unit of base money.",
};

describe("isNodeVisible (search predicate)", () => {
	it("is visible with an empty query", () => {
		assert.equal(isNodeVisible(node, ""), true);
	});

	it("search matches the statement case-insensitively", () => {
		assert.equal(isNodeVisible(node, "MONEY multiplier"), true);
	});

	it("search matches the statement when the name does not", () => {
		assert.equal(isNodeVisible(node, "MAXIMUM ratio"), true);
		assert.equal(isNodeVisible(node, " velocity"), false);
	});

	it("search matches the name when the statement does not", () => {
		assert.equal(isNodeVisible(node, "money MULTIPLIER"), true);
		assert.equal(isNodeVisible(node, " banking"), false);
	});

	it("whitespace-only query is no filter", () => {
		assert.equal(isNodeVisible(node, "   "), true);
	});


});