Fix socket tests to not use example.com (#4627)

part of #4623

Author: sl0thentr0py

tests/integrations/socket/test_socket.py

@@ -2,25 +2,27 @@
 
 from sentry_sdk import start_transaction
 from sentry_sdk.integrations.socket import SocketIntegration
-from tests.conftest import ApproxDict
+from tests.conftest import ApproxDict, create_mock_http_server
+
+PORT = create_mock_http_server()
 
 
 def test_getaddrinfo_trace(sentry_init, capture_events):
     sentry_init(integrations=[SocketIntegration()], traces_sample_rate=1.0)
     events = capture_events()
 
     with start_transaction():
-        socket.getaddrinfo("example.com", 443)
+        socket.getaddrinfo("localhost", PORT)
 
     (event,) = events
     (span,) = event["spans"]
 
     assert span["op"] == "socket.dns"
-    assert span["description"] == "example.com:443"
+    assert span["description"] == f"localhost:{PORT}"  # noqa: E231
     assert span["data"] == ApproxDict(
         {
-            "host": "example.com",
-            "port": 443,
+            "host": "localhost",
+            "port": PORT,
         }
     )
 
@@ -32,28 +34,28 @@ def test_create_connection_trace(sentry_init, capture_events):
     events = capture_events()
 
     with start_transaction():
-        socket.create_connection(("example.com", 443), timeout, None)
+        socket.create_connection(("localhost", PORT), timeout, None)
 
     (event,) = events
     (connect_span, dns_span) = event["spans"]
     # as getaddrinfo gets called in create_connection it should also contain a dns span
 
     assert connect_span["op"] == "socket.connection"
-    assert connect_span["description"] == "example.com:443"
+    assert connect_span["description"] == f"localhost:{PORT}"  # noqa: E231
     assert connect_span["data"] == ApproxDict(
         {
-            "address": ["example.com", 443],
+            "address": ["localhost", PORT],
             "timeout": timeout,
             "source_address": None,
         }
     )
 
     assert dns_span["op"] == "socket.dns"
-    assert dns_span["description"] == "example.com:443"
+    assert dns_span["description"] == f"localhost:{PORT}"  # noqa: E231
     assert dns_span["data"] == ApproxDict(
         {
-            "host": "example.com",
-            "port": 443,
+            "host": "localhost",
+            "port": PORT,
         }
     )
 
@@ -66,7 +68,7 @@ def test_span_origin(sentry_init, capture_events):
     events = capture_events()
 
     with start_transaction(name="foo"):
-        socket.create_connection(("example.com", 443), 1, None)
+        socket.create_connection(("localhost", PORT), 1, None)
 
     (event,) = events