From d6f8a6debcf6ecbd81d588bd9ed9471edaf4fa4b Mon Sep 17 00:00:00 2001
From: vincentbpro <89356961+vincentbpro@users.noreply.github.com>
Date: Tue, 9 Nov 2021 11:09:55 +0100
Subject: [PATCH] test: added tests for pagination util

---
 .../utils/lib/__tests__/pagination.test.js    | 126 ++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 packages/core/utils/lib/__tests__/pagination.test.js

diff --git a/packages/core/utils/lib/__tests__/pagination.test.js b/packages/core/utils/lib/__tests__/pagination.test.js
new file mode 100644
index 0000000000..450e67aaf1
--- /dev/null
+++ b/packages/core/utils/lib/__tests__/pagination.test.js
@@ -0,0 +1,126 @@
+'use strict';
+
+const { withDefaultPagination } = require('../pagination');
+
+const defaultLimit = 20;
+const maxLimit = 50;
+const defaults = {
+  offset: { limit: defaultLimit },
+  page: { pageSize: defaultLimit },
+};
+
+describe('Pagination util', () => {
+  test('Uses default limit', () => {
+    const pagination = {};
+    const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+    expect(defaultPagination).toEqual({
+      start: 0,
+      limit: defaultLimit,
+    });
+  });
+
+  describe('Paged pagination', () => {
+    test('Uses specified pageSize', () => {
+      const pagination = { pageSize: 5 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: pagination.pageSize,
+      });
+    });
+
+    test('Uses maxLimit as pageSize', () => {
+      const pagination = { pageSize: 999 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: maxLimit,
+      });
+    });
+
+    test('Uses 1 as pageSize', () => {
+      const pagination = { pageSize: 0 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: 1,
+      });
+    });
+
+    test('Uses 1 as pageSize', () => {
+      const pagination = { pageSize: -1 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: 1,
+      });
+    });
+
+    test('Uses 1 as pageSize', () => {
+      const pagination = { pageSize: -2 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: 1,
+      });
+    });
+  });
+
+  describe('Offset pagination', () => {
+    test('Uses specified limit', () => {
+      const pagination = { limit: 5 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: pagination.limit,
+      });
+    });
+
+    test('Uses maxLimit as limit', () => {
+      const pagination = { limit: 999 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: maxLimit,
+      });
+    });
+
+    test('Uses 1 as limit', () => {
+      const pagination = { limit: 0 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: 1,
+      });
+    });
+
+    test('Uses maxLimit as limit', () => {
+      const pagination = { limit: -1 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: maxLimit,
+      });
+    });
+
+    test('Uses 1 as limit', () => {
+      const pagination = { limit: -2 };
+      const defaultPagination = withDefaultPagination(pagination, { defaults, maxLimit });
+
+      expect(defaultPagination).toEqual({
+        start: 0,
+        limit: 1,
+      });
+    });
+  });
+});