diff --git a/pythonFiles/unittestadapter/discovery.py b/pythonFiles/unittestadapter/discovery.py
index 7e07e45d1202..7525f33cda61 100644
--- a/pythonFiles/unittestadapter/discovery.py
+++ b/pythonFiles/unittestadapter/discovery.py
@@ -19,7 +19,7 @@
 # If I use from utils then there will be an import error in test_discovery.py.
 from unittestadapter.utils import TestNode, build_test_tree, parse_unittest_args
 
-DEFAULT_PORT = "45454"
+DEFAULT_PORT = 45454
 
 
 class PayloadDict(TypedDict):
@@ -121,12 +121,18 @@ def post_response(
 
     start_dir, pattern, top_level_dir = parse_unittest_args(argv[index + 1 :])
 
-    # Perform test discovery.
     testPort = int(os.environ.get("TEST_PORT", DEFAULT_PORT))
     testUuid = os.environ.get("TEST_UUID")
-    # Post this discovery payload.
+    if testPort is DEFAULT_PORT:
+        print(
+            "Error[vscode-unittest]: TEST_PORT is not set.",
+            " TEST_UUID = ",
+            testUuid,
+        )
     if testUuid is not None:
+        # Perform test discovery.
         payload = discover_tests(start_dir, pattern, top_level_dir, testUuid)
+        # Post this discovery payload.
         post_response(payload, testPort, testUuid)
         # Post EOT token.
         eot_payload: EOTPayloadDict = {"command_type": "discovery", "eot": True}
diff --git a/pythonFiles/unittestadapter/execution.py b/pythonFiles/unittestadapter/execution.py
index e5758118b951..2a22bfff3486 100644
--- a/pythonFiles/unittestadapter/execution.py
+++ b/pythonFiles/unittestadapter/execution.py
@@ -21,14 +21,13 @@
 from typing_extensions import Literal, NotRequired, TypeAlias, TypedDict
 from unittestadapter.utils import parse_unittest_args
 
-DEFAULT_PORT = "45454"
-
 ErrorType = Union[
     Tuple[Type[BaseException], BaseException, TracebackType], Tuple[None, None, None]
 ]
 testPort = 0
 testUuid = 0
 START_DIR = ""
+DEFAULT_PORT = 45454
 
 
 class TestOutcomeEnum(str, enum.Enum):
@@ -269,7 +268,8 @@ def post_response(
     run_test_ids_port_int = (
         int(run_test_ids_port) if run_test_ids_port is not None else 0
     )
-
+    if run_test_ids_port_int == 0:
+        print("Error[vscode-unittest]: RUN_TEST_IDS_PORT env var is not set.")
     # get data from socket
     test_ids_from_buffer = []
     try:
@@ -303,6 +303,19 @@ def post_response(
 
     testPort = int(os.environ.get("TEST_PORT", DEFAULT_PORT))
     testUuid = os.environ.get("TEST_UUID")
+    if testPort is DEFAULT_PORT:
+        print(
+            "Error[vscode-unittest]: TEST_PORT is not set.",
+            " TEST_UUID = ",
+            testUuid,
+        )
+    if testUuid is None:
+        print(
+            "Error[vscode-unittest]: TEST_UUID is not set.",
+            " TEST_PORT = ",
+            testPort,
+        )
+        testUuid = "unknown"
     if test_ids_from_buffer:
         # Perform test execution.
         payload = run_tests(
diff --git a/pythonFiles/vscode_pytest/__init__.py b/pythonFiles/vscode_pytest/__init__.py
index 2fab4d77c2f8..8349e1aa893d 100644
--- a/pythonFiles/vscode_pytest/__init__.py
+++ b/pythonFiles/vscode_pytest/__init__.py
@@ -20,6 +20,8 @@
 from testing_tools import socket_manager
 from typing_extensions import Literal, TypedDict
 
+DEFAULT_PORT = 45454
+
 
 class TestData(TypedDict):
     """A general class that all test objects inherit from."""
@@ -683,8 +685,22 @@ def send_post_request(
     payload -- the payload data to be sent.
     cls_encoder -- a custom encoder if needed.
     """
-    testPort = os.getenv("TEST_PORT", 45454)
+    testPort = os.getenv("TEST_PORT")
     testUuid = os.getenv("TEST_UUID")
+    if testPort is None:
+        print(
+            "Error[vscode-pytest]: TEST_PORT is not set.",
+            " TEST_UUID = ",
+            testUuid,
+        )
+        testPort = DEFAULT_PORT
+    if testUuid is None:
+        print(
+            "Error[vscode-pytest]: TEST_UUID is not set.",
+            " TEST_PORT = ",
+            testPort,
+        )
+        testUuid = "unknown"
     addr = ("localhost", int(testPort))
     global __socket
 
diff --git a/pythonFiles/vscode_pytest/run_pytest_script.py b/pythonFiles/vscode_pytest/run_pytest_script.py
index c3720c8ab8d0..e60ee91f096e 100644
--- a/pythonFiles/vscode_pytest/run_pytest_script.py
+++ b/pythonFiles/vscode_pytest/run_pytest_script.py
@@ -28,6 +28,8 @@
     run_test_ids_port_int = (
         int(run_test_ids_port) if run_test_ids_port is not None else 0
     )
+    if run_test_ids_port_int == 0:
+        print("Error[vscode-pytest]: RUN_TEST_IDS_PORT env var is not set.")
     test_ids_from_buffer = []
     try:
         client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
diff --git a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
index 92bd9f04834e..09ca36849000 100644
--- a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
@@ -78,7 +78,7 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         mutableEnv.PYTHONPATH = pythonPathCommand;
         mutableEnv.TEST_UUID = uuid.toString();
         mutableEnv.TEST_PORT = this.testServer.getPort().toString();
-
+        traceInfo(`All environment variables set for pytest discovery: ${JSON.stringify(mutableEnv)}`);
         const spawnOptions: SpawnOptions = {
             cwd,
             throwOnStdErr: true,
diff --git a/src/client/testing/testController/pytest/pytestExecutionAdapter.ts b/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
index 5c04aabab845..fd61251d33fc 100644
--- a/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
@@ -140,6 +140,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
             // add port with run test ids to env vars
             const pytestRunTestIdsPort = await utils.startTestIdServer(testIds);
             mutableEnv.RUN_TEST_IDS_PORT = pytestRunTestIdsPort.toString();
+            traceInfo(`All environment variables set for pytest execution: ${JSON.stringify(mutableEnv)}`);
 
             const spawnOptions: SpawnOptions = {
                 cwd,