fix(backend): Foute entity-structuur van leerpaden verbeterd.

Ook testen geschreven voor LearningPathRepository en LearningObjectRepository.

backend/tests/data/content/learning-path-repository.test.ts

@@ -0,0 +1,78 @@
+import {beforeAll, describe, expect, it} from "vitest";
+import {setupTestApp} from "../../setup-tests";
+import {getLearningPathRepository} from "../../../src/data/repositories";
+import {LearningPathRepository} from "../../../src/data/content/learning-path-repository";
+import example from "../../test-assets/learning-paths/pn-werking-example";
+import {LearningPath} from "../../../src/entities/content/learning-path.entity";
+import {expectToBeCorrectEntity} from "../../test-utils/expect-to-be-correct-entity";
+import {Language} from "../../../src/entities/content/language";
+
+function expectToHaveFoundPrecisely(expected: LearningPath, result: LearningPath[]): void {
+    expect(result).toHaveProperty("length");
+    expect(result.length).toBe(1);
+    expectToBeCorrectEntity({ entity: result[0]! }, { entity: expected });
+}
+
+function expectToHaveFoundNothing(result: LearningPath[]): void {
+    expect(result).toHaveProperty("length");
+    expect(result.length).toBe(0);
+}
+
+describe("LearningPathRepository", () => {
+    let learningPathRepo: LearningPathRepository;
+
+    beforeAll(async () => {
+        await setupTestApp();
+        learningPathRepo = getLearningPathRepository();
+    });
+
+    let examplePath: LearningPath;
+
+    it("should be able to add a learning path without throwing an error", async () => {
+        examplePath = example.createLearningPath();
+        await learningPathRepo.insert(examplePath);
+    });
+
+    it("should return the added path when it is queried by hruid and language", async () => {
+        const result = await learningPathRepo.findByHruidAndLanguage(examplePath.hruid, examplePath.language);
+        expect(result).toBeInstanceOf(LearningPath);
+        expectToBeCorrectEntity({ entity: result! }, { entity: examplePath });
+    });
+
+    it("should return null to a query on a non-existing hruid or language", async () => {
+        const result = await learningPathRepo.findByHruidAndLanguage("not_existing_hruid", examplePath.language);
+        expect(result).toBe(null);
+    });
+
+    it("should return the learning path when we search for a search term occurring in its title", async () => {
+        const result = await learningPathRepo.findByQueryStringAndLanguage(
+            examplePath.title.slice(4, 9),
+            examplePath.language
+        );
+        expectToHaveFoundPrecisely(examplePath, result);
+    });
+
+    it("should return the learning path when we search for a search term occurring in its description", async () => {
+        const result = await learningPathRepo.findByQueryStringAndLanguage(
+            examplePath.description.slice(8, 15),
+            examplePath.language
+        );
+        expectToHaveFoundPrecisely(examplePath, result);
+    });
+
+    it("should return null when we search for something not occurring in its title or description", async () => {
+        const result = await learningPathRepo.findByQueryStringAndLanguage(
+            "something not occurring in the path",
+            examplePath.language
+        );
+        expectToHaveFoundNothing(result);
+    });
+
+    it("should return null when we search for something occurring in its title, but another language", async () => {
+        const result = await learningPathRepo.findByQueryStringAndLanguage(
+            examplePath.description.slice(1, 3),
+            Language.Kalaallisut
+        );
+        expectToHaveFoundNothing(result);
+    });
+});