diff --git a/test/Authentication.test.ts b/test/Authentication.test.ts
index b9cadb1..430bcab 100644
--- a/test/Authentication.test.ts
+++ b/test/Authentication.test.ts
@@ -34,6 +34,21 @@ useApp(async (addr, port) => {
     }(addr, port);
 });
 
+async function followMagicLinkFromMail(cookies: string[]): Promise<void> {
+    const mail: Record<string, unknown> | null = await popEmail();
+    expect(mail).not.toBeNull();
+
+    const query = (mail?.text as string).split('/magic/link?')[1].split('\n')[0];
+    expect(query).toBeDefined();
+
+    await agent.get('/magic/link?' + query)
+        .expect(200);
+    await agent.get('/magic/lobby')
+        .set('Cookie', cookies)
+        .expect(302)
+        .expect('Location', '/');
+}
+
 let agent: supertest.SuperTest<supertest.Test>;
 
 beforeAll(() => {
@@ -163,18 +178,7 @@ describe('Register with email (magic_link)', () => {
             .expect(302)
             .expect('Location', '/magic/lobby?redirect_uri=%2Fcsrf');
 
-        const mail: Record<string, unknown> | null = await popEmail();
-        expect(mail).not.toBeNull();
-
-        const query = (mail?.text as string).split('/magic/link?')[1].split('\n')[0];
-        expect(query).toBeDefined();
-
-        await agent.get('/magic/link?' + query)
-            .expect(200);
-        await agent.get('/magic/lobby')
-            .set('Cookie', cookies)
-            .expect(302)
-            .expect('Location', '/');
+        await followMagicLinkFromMail(cookies);
 
         // Verify saved user
         const user = await User.select()
@@ -225,18 +229,7 @@ describe('Register with email (magic_link)', () => {
             .expect(302)
             .expect('Location', '/magic/lobby?redirect_uri=%2Fcsrf');
 
-        const mail: Record<string, unknown> | null = await popEmail();
-        expect(mail).not.toBeNull();
-
-        const query = (mail?.text as string).split('/magic/link?')[1].split('\n')[0];
-        expect(query).toBeDefined();
-
-        await agent.get('/magic/link?' + query)
-            .expect(200);
-        await agent.get('/magic/lobby')
-            .set('Cookie', cookies)
-            .expect(302)
-            .expect('Location', '/');
+        await followMagicLinkFromMail(cookies);
 
         // Verify saved user
         const user = await User.select()
@@ -278,18 +271,7 @@ describe('Register with email (magic_link)', () => {
             .expect(302)
             .expect('Location', '/magic/lobby?redirect_uri=%2Fcsrf');
 
-        const mail: Record<string, unknown> | null = await popEmail();
-        expect(mail).not.toBeNull();
-
-        const query = (mail?.text as string).split('/magic/link?')[1].split('\n')[0];
-        expect(query).toBeDefined();
-
-        await agent.get('/magic/link?' + query)
-            .expect(200);
-        await agent.get('/magic/lobby')
-            .set('Cookie', cookies)
-            .expect(302)
-            .expect('Location', '/');
+        await followMagicLinkFromMail(cookies);
 
         // Verify saved user
         const user = await User.select()