From 1f9e9ed70afb4b94128cbb9b3e53093da3c4ec50 Mon Sep 17 00:00:00 2001
From: Gerald Schmittinger <gerald.schmittinger@ugent.be>
Date: Sun, 9 Mar 2025 23:23:38 +0100
Subject: [PATCH] test(backend): Gewerkt aan testen voor
 DatabaseLearningPathProvider.

---
 .../database-learning-path-provider.test.ts   | 40 +++++++++++++++++++
 backend/tests/test-utils/expectations.ts      | 16 +++++++-
 2 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 backend/tests/services/learning-objects/database-learning-path-provider.test.ts

diff --git a/backend/tests/services/learning-objects/database-learning-path-provider.test.ts b/backend/tests/services/learning-objects/database-learning-path-provider.test.ts
new file mode 100644
index 00000000..dab40a69
--- /dev/null
+++ b/backend/tests/services/learning-objects/database-learning-path-provider.test.ts
@@ -0,0 +1,40 @@
+import {beforeAll, describe, expect, it} from "vitest";
+import {LearningObject} from "../../../src/entities/content/learning-object.entity";
+import {setupTestApp} from "../../setup-tests";
+import {LearningPath} from "../../../src/entities/content/learning-path.entity";
+import {getLearningObjectRepository, getLearningPathRepository} from "../../../src/data/repositories";
+import learningObjectExample from "../../test-assets/learning-objects/pn_werkingnotebooks/pn-werkingnotebooks-example";
+import learningPathExample from "../../test-assets/learning-paths/pn-werking-example"
+import databaseLearningPathProvider from "../../../src/services/learning-paths/database-learning-path-provider";
+
+async function initExampleData(): Promise<{ learningObject: LearningObject, learningPath: LearningPath }> {
+    const learningObjectRepo = getLearningObjectRepository();
+    const learningPathRepo = getLearningPathRepository();
+    let learningObject = learningObjectExample.createLearningObject();
+    let learningPath = learningPathExample.createLearningPath();
+    await learningObjectRepo.save(learningObject);
+    await learningPathRepo.save(learningPath);
+    return { learningObject, learningPath };
+}
+
+describe("DatabaseLearningPathProvider", () => {
+    let example: {learningObject: LearningObject, learningPath: LearningPath};
+
+    beforeAll(async () => {
+        await setupTestApp();
+        example = await initExampleData();
+    });
+
+    describe("fetchLearningPaths", () => {
+        it("returns the learning path correctly", () => {
+            const result = await databaseLearningPathProvider.fetchLearningPaths(
+                [example.learningPath.hruid],
+                example.learningPath.language,
+                "the source"
+            );
+            expect(result.success).toBe(true);
+            expect(result.data?.length).toBe(1);
+            expect(result.data)
+        })
+    });
+});
diff --git a/backend/tests/test-utils/expectations.ts b/backend/tests/test-utils/expectations.ts
index 048a327e..285c001a 100644
--- a/backend/tests/test-utils/expectations.ts
+++ b/backend/tests/test-utils/expectations.ts
@@ -1,6 +1,7 @@
 import {AssertionError} from "node:assert";
 import {LearningObject} from "../../src/entities/content/learning-object.entity";
-import {FilteredLearningObject} from "../../src/interfaces/learning-content";
+import {FilteredLearningObject, LearningPath} from "../../src/interfaces/learning-content";
+import {LearningPath as LearningPathEntity} from "../../src/entities/content/learning-path.entity"
 import { expect } from "vitest";
 
 // Ignored properties because they belang for example to the class, not to the entity itself.
@@ -91,3 +92,16 @@ export function expectToBeCorrectFilteredLearningObject(filtered: FilteredLearni
     expect(filtered.htmlUrl).toContain(`language=${original.language}`);
     expect(filtered.htmlUrl).toContain(`version=${original.version}`);
 }
+
+/**
+ * Check that a learning path returned by a LearningPathRetriever, the LearningPathService or an API endpoint
+ * is a correct representation of the given learning path entity.
+ *
+ * @param learningPath The learning path returned by the retriever, service or endpoint
+ * @param expectedEntity The expected entity
+ */
+export function expectToBeCorrectLearningPath(learningPath: LearningPath, expectedEntity: LearningPathEntity) {
+    expect(learningPath.hruid).toEqual(expectedEntity.hruid);
+    expect(learningPath.language).toEqual(expectedEntity.language);
+    expect(learningPath.description).toEqual(expectedEntity.description);
+}