test: Add content negotiation integration tests

test/integration/ContentNegotiation.test.ts

@@ -0,0 +1,67 @@
+import assert from 'assert';
+import fetch from 'cross-fetch';
+import type { App } from '../../src/init/App';
+import { getPort } from '../util/Util';
+import { getDefaultVariables, getTestConfigPath, instantiateFromConfig } from './Config';
+
+const port = getPort('ContentNegotiation');
+const baseUrl = `http://localhost:${port}`;
+
+const documents = [
+  [ '/turtle', 'text/turtle', '# Test' ],
+  [ '/markdown', 'text/markdown', '# Test' ],
+];
+
+const cases: [string, string, string][] = [
+  [ '/turtle', 'text/turtle', '' ],
+  [ '/turtle', 'text/turtle', '*/*' ],
+  [ '/turtle', 'text/turtle', 'text/html,*/*;q=0.1' ],
+  [ '/turtle', 'application/json', 'application/json' ],
+  [ '/turtle', 'application/ld+json', 'application/ld+json' ],
+  [ '/turtle', 'application/octet-stream', 'application/octet-stream' ],
+  [ '/markdown', 'text/markdown', '' ],
+  [ '/markdown', 'text/markdown', '*/*' ],
+  [ '/markdown', 'text/markdown', 'text/html,text/markdown' ],
+  [ '/markdown', 'text/markdown', 'text/markdown;q=0.9, text/html;q=0.1' ],
+  [ '/markdown', 'text/html', 'text/html' ],
+  [ '/markdown', 'text/html', 'text/html,*/*;q=0.8' ],
+  [ '/markdown', 'text/html', 'text/markdown;q=0.1, text/html;q=0.9' ],
+  [ '/markdown', 'application/octet-stream', 'application/octet-stream' ],
+];
+
+describe('Content negotiation', (): void => {
+  let app: App;
+
+  beforeAll(async(): Promise<void> => {
+    // Start the server
+    const instances = await instantiateFromConfig(
+      'urn:solid-server:test:Instances',
+      getTestConfigPath('server-memory.json'),
+      getDefaultVariables(port, baseUrl),
+    ) as Record<string, any>;
+    ({ app } = instances);
+    await app.start();
+
+    // Create documents
+    for (const [ slug, contentType, body ] of documents) {
+      const res = await fetch(`${baseUrl}${slug}`, {
+        method: 'PUT',
+        headers: { 'content-type': contentType },
+        body,
+      });
+      assert.strictEqual(res.status, 201);
+    }
+  });
+
+  afterAll(async(): Promise<void> => {
+    await app.stop();
+  });
+
+  describe.each(cases)('a request for %s', (name, expected, accept): void => {
+    it(`results in ${expected} in response to Accept: ${accept}`, async(): Promise<void> => {
+      const res = await fetch(`${baseUrl}${name}`, { headers: { accept }});
+      expect(res.status).toBe(200);
+      expect(res.headers.get('Content-Type')).toBe(expected);
+    });
+  });
+});