test(legal): add tests for getLegalNotice

2026-08-05 20:47:02 +02:00
parent 46ba0577a9
commit b2a1662534
1 changed files with 110 additions and 0 deletions
@@ -0,0 +1,110 @@
+/*
+Copyright 2026 Seekra
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { FetchError } from '../../errors';
+import { getLegalNotice } from '../fetchLegalContent';
+import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest';
+
+let fetchSpy;
+
+beforeEach(() => {
+    fetchSpy = vi.spyOn(globalThis, 'fetch');
+});
+
+afterEach(() => {
+    fetchSpy.mockRestore();
+});
+
+const exampleHtml = `<h1>Heading</h1>
+<p>
+    <a>...</a>
+</p>`;
+
+const exampleHtmlWithLinkClass = `<h1>Heading</h1>
+<p>
+    <a class="link">...</a>
+</p>`;
+const exampleHtmlDocument = `<html>
+    <head>
+        <title>Legal Notice</title>
+    </head>
+    <body>
+        ${exampleHtml}
+    </body>
+</html>`;
+const exampleHtmlDocumentWithMain = `<html>
+    <head>
+        <title>Legal Notice</title>
+    </head>
+    <body>
+        <main>
+            ${exampleHtml}
+        </main>
+    </body>
+</html>`;
+
+describe('fetchLegalContent', () => {
+    describe('getLegalNotice', () => {
+        describe('success', () => {
+            test('returns HTML body', async () => {
+                fetchSpy.mockResolvedValue(
+                    new Response(exampleHtmlDocument)
+                );
+
+                expect(
+                    (await getLegalNotice()).trim()
+                ).toBe(exampleHtmlWithLinkClass);
+            });
+
+            test('returns HTML <main>', async () => {
+                fetchSpy.mockResolvedValue(
+                    new Response(exampleHtmlDocumentWithMain)
+                );
+
+                expect(
+                    (await getLegalNotice()).trim()
+                ).toBe(exampleHtmlWithLinkClass);
+            });
+
+            test('does not fail on success status code', async () => {
+                fetchSpy.mockResolvedValue(
+                    new Response(null, { status: 206 })
+                );
+
+                await getLegalNotice();
+            });
+        });
+
+        describe('error', () => {
+            test('throws FetchError when fetch fails', async () => {
+                fetchSpy.mockRejectedValue(new TypeError());
+                await expect(getLegalNotice()).rejects.toThrow(FetchError);
+            });
+
+            test('throws FetchError on HTTP error', async () => {
+                fetchSpy.mockResolvedValue(
+                    new Response(null, { status: 404 })
+                )
+                await expect(getLegalNotice()).rejects.toThrow(FetchError);
+            });
+
+            test('does not throw FetchError when fetch throws another error than TypeError', async () => {
+                fetchSpy.mockRejectedValue(new Error());
+                await expect(getLegalNotice()).rejects.toThrow(Error);
+            });
+        });
+    });
+});