✅ Test question tree structure

jest.config.js

@@ -1,4 +1,5 @@
 module.exports = {
-  preset: 'ts-jest',
-  testEnvironment: 'node',
-};
+    preset: "ts-jest",
+    testEnvironment: "node",
+    testPathIgnorePatterns: ["node_modules", "dist"],
+};

src/infrastructure/config/question-tree.test.ts

@@ -0,0 +1,32 @@
+import { Question } from "../../domain/support/question-tree";
+import { questionTree } from ".";
+
+const checkType = (questionTree: any): questionTree is Question => {
+    if (!questionTree.title) {
+        return false;
+    }
+    if (!questionTree.choices) {
+        return false;
+    }
+    if (!(questionTree.choices instanceof Array)) {
+        return false;
+    }
+    return questionTree.choices.reduce((acc: boolean, choice: any) => {
+        if (!choice.id) {
+            return false;
+        }
+        if (!choice.label) {
+            return false;
+        }
+        if (!choice.link) {
+            return false;
+        }
+        return acc && (choice.link.content || checkType(choice.link));
+    }, true);
+};
+
+describe("The question tree", () => {
+    it("must be valid", () => {
+        expect(checkType(questionTree)).toBeTruthy();
+    });
+});