diff --git a/apps/backend/src/tests/e2e/auth.test.ts b/apps/backend/src/tests/e2e/auth.test.ts
index 69aa3c9..64b1704 100644
--- a/apps/backend/src/tests/e2e/auth.test.ts
+++ b/apps/backend/src/tests/e2e/auth.test.ts
@@ -33,4 +33,63 @@ describe('E2E: Authentication', () => {
     expect(setCookieHeader).toBeDefined();
     authCookie = setCookieHeader!;
   });
+
+  test('should get current session with cookies', async () => {
+    const response = await fetch('http://localhost:3000/auth/api/get-session', {
+      headers: {
+        'Cookie': authCookie,
+      },
+    });
+
+    expect(response.status).toBe(200);
+
+    const data = await response.json() as any;
+    expect(data.user).toBeDefined();
+    expect(data.user.email).toBe(testUser.email);
+  });
+
+  test('should sign in with credentials', async () => {
+    const response = await fetch('http://localhost:3000/auth/api/sign-in/email', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        email: testUser.email,
+        password: testUser.password,
+      }),
+    });
+
+    expect(response.status).toBe(200);
+
+    const data = await response.json() as any;
+    expect(data.user).toBeDefined();
+    expect(data.user.email).toBe(testUser.email);
+
+    const setCookieHeader = response.headers.get('set-cookie');
+    expect(setCookieHeader).toBeDefined();
+    authCookie = setCookieHeader!;
+  });
+
+  test('should fail with wrong password', async () => {
+    const response = await fetch('http://localhost:3000/auth/api/sign-in/email', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        email: testUser.email,
+        password: 'WrongPassword',
+      }),
+    });
+
+    expect(response.status).toBeGreaterThanOrEqual(400);
+  });
+
+  test('should fail without cookies', async () => {
+    const response = await fetch('http://localhost:3000/auth/api/session');
+
+    // Должен вернуть 401 или отсутствующую сессию
+    expect(response.status).toBeGreaterThanOrEqual(400);
+  });
 });