test(backend): Testen voor LearningPathService toegevoegd

backend/tests/services/learning-path/learning-path-service.test.ts

@@ -0,0 +1,106 @@
+import {beforeAll, describe, expect, it} from "vitest";
+import {setupTestApp} from "../../setup-tests";
+import {LearningObject} from "../../../src/entities/content/learning-object.entity";
+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 {Language} from "../../../src/entities/content/language";
+import learningPathService from "../../../src/services/learning-paths/learning-path-service";
+
+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 };
+}
+
+const TEST_DWENGO_LEARNING_PATH_HRUID = "pn_werking";
+const TEST_DWENGO_LEARNING_PATH_TITLE = "Werken met notebooks";
+const TEST_DWENGO_EXCLUSIVE_LEARNING_PATH_SEARCH_QUERY = "Microscopie";
+const TEST_SEARCH_QUERY_EXPECTING_NO_MATCHES = "su$m8f9usf89ud<p9<U8SDP8UP9";
+
+describe("LearningPathService", () => {
+    let example: { learningObject: LearningObject, learningPath: LearningPath };
+    beforeAll(async () => {
+        await setupTestApp();
+        example = await initExampleData();
+    });
+    describe("fetchLearningPaths", () => {
+        it("should return learning paths both from the database and from the Dwengo API", async () => {
+            const result = await learningPathService.fetchLearningPaths(
+                [example.learningPath.hruid, TEST_DWENGO_LEARNING_PATH_HRUID],
+                example.learningPath.language,
+                "the source"
+            );
+            expect(result.success).toBeTruthy();
+            expect(result.data?.filter(it => it.hruid == TEST_DWENGO_LEARNING_PATH_HRUID).length).not.toBe(0);
+            expect(result.data?.filter(it => it.hruid == example.learningPath.hruid).length).not.toBe(0);
+            expect(result.data?.filter(it => it.hruid == TEST_DWENGO_LEARNING_PATH_HRUID)[0].title)
+                .toEqual(TEST_DWENGO_LEARNING_PATH_TITLE);
+            expect(result.data?.filter(it => it.hruid == example.learningPath.hruid)[0].title)
+                .toEqual(example.learningPath.title);
+        });
+        it("should include both the learning objects from the Dwengo API and learning objects from the database in its response", async () => {
+            const result = await learningPathService.fetchLearningPaths(
+                [example.learningPath.hruid],
+                example.learningPath.language,
+                "the source"
+            );
+            expect(result.success).toBeTruthy();
+            expect(result.data?.length).toBe(1);
+
+            // Should include all the nodes, even those pointing to foreign learning objects.
+            expect(
+                [...result.data![0].nodes.map(it => it.learningobject_hruid)].sort()
+            ).toEqual(
+                example.learningPath.nodes.map(it => it.learningObjectHruid).sort()
+            );
+        });
+    });
+    describe("searchLearningPath", () => {
+        it("should include both the learning paths from the Dwengo API and those from the database in its response", async () => {
+            // This matches the learning object in the database, but definitely also some learning objects in the Dwengo API.
+            const result = await learningPathService.searchLearningPaths(
+                example.learningPath.title.substring(2, 3),
+                example.learningPath.language
+            );
+
+            // Should find the one from the database
+            expect(
+                result.filter(it =>
+                    it.hruid === example.learningPath.hruid && it.title === example.learningPath.title
+                ).length
+            ).toBe(1);
+
+            // but should not only find that one.
+            expect(result.length).not.toBeLessThan(2);
+        });
+        it("should still return results from the Dwengo API even though there are no matches in the database", async () => {
+            const result = await learningPathService.searchLearningPaths(
+                TEST_DWENGO_EXCLUSIVE_LEARNING_PATH_SEARCH_QUERY,
+                Language.Dutch
+            );
+
+            // Should find something...
+            expect(result.length).not.toBe(0);
+
+            // but not the example learning path.
+            expect(
+                result.filter(it =>
+                    it.hruid === example.learningPath.hruid && it.title === example.learningPath.title
+                ).length
+            ).toBe(0);
+        });
+        it("should return an empty list if neither the Dwengo API nor the database contains matches", async () => {
+            const result = await learningPathService.searchLearningPaths(
+                TEST_SEARCH_QUERY_EXPECTING_NO_MATCHES,
+                Language.Dutch
+            );
+            expect(result.length).toBe(0);
+        });
+    });
+});