feat: solution for 'Повторный экзамен: Граф с рефлексией и доработкой'

test/graph.test.js

@@ -0,0 +1,10 @@
+const { Graph, createNode } = require('../src/index');
+
+test('Graph runs nodes sequentially', () => {
+  const graph = new Graph();
+  graph.addNode(createNode('Rewrite', { pattern: /foo/g, replacement: 'bar' }));
+  graph.addNode(createNode('Reflection'));
+  const input = 'foo';
+  const output = graph.run(input);
+  expect(output).toBe('bar');
+});