Put all tests in 1 file because order is important

Author: Ataba29

src/Tests/integration/test_advanced.py

@@ -1,5 +1,8 @@
 import pytest
 from client import ByteForgeClient
+import socket
+import threading
+import time
 
 
 @pytest.fixture
@@ -22,3 +25,79 @@ def test_get_after_delete(client):
 
     response = client.get("volt")
     assert response == "Get command was successful but key dont exist"
+
+
+
+def test_unknown_command(client):
+    response = client._send("FOOBAR volt 3333")
+    assert response == "No command was received"
+
+
+def test_concurrent_clients_distinct_keys():
+    # Kept comfortably under the rate limiter's burst capacity (10),
+    # since earlier tests in the session may have already spent tokens
+    # that haven't fully refilled yet.
+    num_clients = 5
+    results: list[str | None] = [None] * num_clients
+    errors: list[str | None] = [None] * num_clients
+
+    def worker(i):
+        try:
+            c = ByteForgeClient()
+            key = f"vault{i}"
+            value = str(1000 + i)
+            c.insert(key, value)
+            results[i] = c.get(key)
+            c.delete(key)
+            c.close()
+        except OSError as e:
+            errors[i] = str(e)
+
+    threads = [threading.Thread(target=worker, args=(i,)) for i in range(num_clients)]
+    for t in threads:
+        t.start()
+    for t in threads:
+        t.join()
+
+    for i in range(num_clients):
+        assert errors[i] is None, f"client {i} failed: {errors[i]}"
+        expected_value = str(1000 + i)
+        assert results[i] == f"Get command was successful: {expected_value}"
+
+
+def test_cross_client_visibility_after_delete():
+    client_a = ByteForgeClient()
+    client_b = ByteForgeClient()
+
+    try:
+        assert client_a.insert("shared", "42") == "Insert command was successful"
+        assert client_a.delete("shared") == "Delete command was successful"
+
+        response = client_b.get("shared")
+        assert response == "Get command was successful but key dont exist"
+    finally:
+        client_a.close()
+        client_b.close()
+
+
+def test_rate_limiter_blocks_excess_connections():
+    host, port = "127.0.0.1", 6625
+    max_attempts = 50
+    blocked = False
+
+    for _ in range(max_attempts):
+        try:
+            s = socket.create_connection((host, port), timeout=1.0)
+            s.sendall(b"GET volt\n")
+            data = s.recv(1024)
+            s.shutdown(socket.SHUT_RDWR)
+            s.close()
+
+            if data == b"":
+                blocked = True
+                break
+        except (ConnectionResetError, ConnectionAbortedError, BrokenPipeError, OSError):
+            blocked = True
+            break
+    time.sleep(0.2)
+    assert blocked, f"Expected at least one blocked connection within {max_attempts} attempts"