test(frontend): Coverage verbeteren

frontend/tests/controllers/teacher-controller.test.ts

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+import { beforeEach, describe, expect, it } from 'vitest';
+import { TeacherController } from '../../src/controllers/teachers';
+
+describe("Test controller teachers", () => {
+    let controller: TeacherController;
+
+    beforeEach(async () => {
+        controller = new TeacherController();
+    });
+
+    it("Get all teachers", async () => {
+        const data = await controller.getAll(true);
+        expect(data.teachers).to.have.length.greaterThan(0);
+        expect(data.teachers[0]).to.have.property("username");
+        expect(data.teachers[0]).to.have.property("firstName");
+        expect(data.teachers[0]).to.have.property("lastName");
+    });
+
+    it("Get teacher by username", async () => {
+        const username = "testleerkracht1";
+        const data = await controller.getByUsername(username);
+        expect(data.teacher.username).to.equal(username);
+        expect(data.teacher).to.have.property("firstName");
+        expect(data.teacher).to.have.property("lastName");
+    });
+
+    it("Get teacher by non-existent username", async () => {
+        const username = "nonexistentuser";
+        await expect(controller.getByUsername(username)).rejects.toThrow();
+    });
+
+    it("Create a new teacher", async () => {
+        const newTeacher = {
+            username: "newteacher",
+            firstName: "New",
+            lastName: "Teacher",
+        };
+        const data = await controller.createTeacher(newTeacher);
+        expect(data.teacher.username).to.equal(newTeacher.username);
+        expect(data.teacher.firstName).to.equal(newTeacher.firstName);
+        expect(data.teacher.lastName).to.equal(newTeacher.lastName);
+    });
+
+    it("Delete a teacher", async () => {
+        const username = "newteacher";
+        const data = await controller.deleteTeacher(username);
+        expect(data).toBeTruthy();
+    });
+
+    it("Handle deletion of non-existent teacher", async () => {
+        const username = "nonexistentuser";
+        await expect(controller.deleteTeacher(username)).rejects.toThrow();
+    });
+
+    it("Get classes for a teacher", async () => {
+        const username = "testleerkracht1";
+        const data = await controller.getClasses(username, true);
+        expect(data.classes).to.have.length.greaterThan(0);
+        expect(data.classes[0]).to.have.property("id");
+        expect(data.classes[0]).to.have.property("displayName");
+    });
+
+    it("Get students for a teacher", async () => {
+        const username = "testleerkracht1";
+        const data = await controller.getStudents(username, true);
+        expect(data.students).to.have.length.greaterThan(0);
+        expect(data.students[0]).to.have.property("username");
+        expect(data.students[0]).to.have.property("firstName");
+        expect(data.students[0]).to.have.property("lastName");
+    });
+});