From ed38759f3070ea49885e5309b81cc9df8b4d17ed Mon Sep 17 00:00:00 2001
From: SeonjaeLee <tjswo9502@gmail.com>
Date: Fri, 24 Jan 2025 22:14:28 +0900
Subject: [PATCH] test: pagination

---
 src/hooks/useMembers.test.ts | 81 ++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/src/hooks/useMembers.test.ts b/src/hooks/useMembers.test.ts
index d9b2381..e71e5e3 100644
--- a/src/hooks/useMembers.test.ts
+++ b/src/hooks/useMembers.test.ts
@@ -189,3 +189,84 @@ test("filter members by name case-insensitively", async () => {
 
   expect(result.current.members).toEqual([johnDoe]);
 });
+
+test("total cohorts calculated correctly", async () => {
+  const expectedMembers: Member[] = [
+    createMockMember({ cohorts: [1] }),
+    createMockMember({ cohorts: [2] }),
+    createMockMember({ cohorts: [2] }),
+    createMockMember({ cohorts: [3] }),
+    createMockMember({ cohorts: [3] }),
+  ];
+
+  const getMembers = vi.fn().mockResolvedValue(expectedMembers);
+
+  const { result } = renderHook(() => useMembers({ getMembers }));
+
+  await waitFor(() => expect(result.current.isLoading).toBe(false));
+
+  expect(result.current.totalCohorts).toBe(3);
+});
+
+test("pagination members by initialize", async () => {
+  const expectedMembers: Member[] = [];
+
+  const getMembers = vi.fn().mockResolvedValue(expectedMembers);
+
+  const { result } = renderHook(() =>
+    useMembers({ getMembers, isPagination: true }),
+  );
+
+  // Wait for members to load
+  await waitFor(() => expect(result.current.isLoading).toBe(false));
+
+  // Initial state
+  expect(result.current.members).toEqual(expectedMembers);
+
+  expect(result.current.pagination.current).toEqual(0);
+  expect(result.current.pagination.total).toEqual(0);
+});
+
+test("pagination members by current, total and members.lenght", async () => {
+  const expectedMembers: Member[] = [
+    createMockMember({ cohorts: [1] }),
+    createMockMember({ cohorts: [2] }),
+    createMockMember({ cohorts: [3] }),
+    createMockMember({ cohorts: [4] }),
+    createMockMember({ cohorts: [5] }),
+    createMockMember({ cohorts: [6] }),
+    createMockMember({ cohorts: [7] }),
+    createMockMember({ cohorts: [8] }),
+    createMockMember({ cohorts: [9] }),
+    createMockMember({ cohorts: [10] }),
+    createMockMember({ cohorts: [11] }),
+    createMockMember({ cohorts: [12] }),
+    createMockMember({ cohorts: [13] }),
+  ];
+
+  const getMembers = vi.fn().mockResolvedValue(expectedMembers);
+
+  const { result } = renderHook(() =>
+    useMembers({ getMembers, isPagination: true }),
+  );
+
+  // Wait for members to load
+  await waitFor(() => expect(result.current.isLoading).toBe(false));
+
+  // Initial state 1 / 2
+  expect(result.current.pagination.current).toEqual(1);
+  expect(result.current.pagination.total).toEqual(2);
+  expect(result.current.members.length).toEqual(10);
+
+  // Act: Apply Next page 2 / 2
+  act(() => {
+    result.current.setPagination(({ current, total }) => ({
+      current: current + 1,
+      total,
+    }));
+  });
+
+  expect(result.current.pagination.current).toEqual(2);
+  expect(result.current.pagination.total).toEqual(2);
+  expect(result.current.members.length).toEqual(3);
+});