test: fetchHelper functions

tests/fetchHelper.test.jsx

@@ -0,0 +1,60 @@
+import {
+  afterEach,
+  beforeEach,
+  beforeAll,
+  afterAll,
+  expect,
+  describe,
+  it,
+  vi,
+} from "vitest";
+import {
+  fetchLessonPlans,
+  fetchOneLessonPlan,
+} from "../src/helper/fetchHelper";
+
+describe("fetchHelper functions tests", () => {
+  const mockResponseGetLessonPlans = {
+    data: {
+      lessonPlans: ["some", "lesson", "plans"],
+    },
+  };
+  const mockResponseGetOneLessonPlan = {
+    data: {
+      lessonPlan: {
+        topic: "example",
+        other: "fields",
+      },
+    },
+  };
+  const mockLessonApiRef = {
+    current: {
+      getLessonPlans: vi.fn().mockReturnValue(mockResponseGetLessonPlans),
+      getOneLessonPlan: vi.fn().mockReturnValue(mockResponseGetOneLessonPlan),
+    },
+  };
+  const mockSetLessonPlans = vi.fn().mockReturnThis();
+  const mockSetLessonPlan = vi.fn().mockReturnThis();
+  const testLessonId = "51912417232";
+
+  it("calls the lesson plan API getLessonPlans method and sets the new lesson plans data", async () => {
+    await fetchLessonPlans(mockLessonApiRef, mockSetLessonPlans);
+
+    expect(mockLessonApiRef.current.getLessonPlans).toHaveBeenCalledTimes(1);
+    expect(mockSetLessonPlans).toHaveBeenCalledWith(
+      mockResponseGetLessonPlans.data.lessonPlans
+    );
+  });
+
+  it("calls the lesson plan API getOneLessonPlan method and sets the new lesson plan data", async () => {
+    await fetchOneLessonPlan(mockLessonApiRef, testLessonId, mockSetLessonPlan);
+
+    expect(mockLessonApiRef.current.getOneLessonPlan).toHaveBeenCalledTimes(1);
+    expect(mockLessonApiRef.current.getOneLessonPlan).toHaveBeenCalledWith(
+      testLessonId
+    );
+    expect(mockSetLessonPlan).toHaveBeenCalledWith(
+      mockResponseGetOneLessonPlan.data.lessonPlan
+    );
+  });
+});