From 24678d503486e36dcda92b2176419421f1a90a41 Mon Sep 17 00:00:00 2001
From: ibraheem-opentensor <ibraheem@opentensor.dev>
Date: Tue, 10 Dec 2024 12:37:16 -0800
Subject: [PATCH 1/3] Fixes buffer overflow in stdout

---
 tests/e2e_tests/conftest.py | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/tests/e2e_tests/conftest.py b/tests/e2e_tests/conftest.py
index 4a7b2ccf62..5d94f3aedd 100644
--- a/tests/e2e_tests/conftest.py
+++ b/tests/e2e_tests/conftest.py
@@ -4,6 +4,7 @@
 import signal
 import subprocess
 import time
+import threading
 
 import pytest
 from substrateinterface import SubstrateInterface
@@ -37,7 +38,11 @@ def local_chain(request):
 
     # Start new node process
     process = subprocess.Popen(
-        cmds, stdout=subprocess.PIPE, text=True, preexec_fn=os.setsid
+        cmds,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        text=True,
+        preexec_fn=os.setsid,
     )
 
     # Pattern match indicates node is compiled and ready
@@ -52,16 +57,31 @@ def local_chain(request):
     timestamp = int(time.time())
 
     def wait_for_node_start(process, pattern):
-        for line in process.stdout:
+        while True:
+            line = process.stdout.readline()
+            if not line:
+                break
+
             print(line.strip())
             # 10 min as timeout
             if int(time.time()) - timestamp > 10 * 60:
                 print("Subtensor not started in time")
-                break
+                return
             if pattern.search(line):
                 print("Node started!")
                 break
 
+        # Start a background reader after pattern is found
+        # To prevent the buffer filling up
+        def read_output():
+            while True:
+                line = process.stdout.readline()
+                if not line:
+                    break
+
+        reader_thread = threading.Thread(target=read_output, daemon=True)
+        reader_thread.start()
+
     wait_for_node_start(process, pattern)
 
     # Run the test, passing in substrate interface

From 92d5c7bf4973129fbff993d36e75b588be8f6be5 Mon Sep 17 00:00:00 2001
From: ibraheem-opentensor
 <165814940+ibraheem-opentensor@users.noreply.github.com>
Date: Tue, 10 Dec 2024 13:46:36 -0800
Subject: [PATCH 2/3] Testing on devnet

---
 .github/workflows/e2e-subtensor-tests.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/e2e-subtensor-tests.yaml b/.github/workflows/e2e-subtensor-tests.yaml
index 0bc467a94d..9dbce4cd62 100644
--- a/.github/workflows/e2e-subtensor-tests.yaml
+++ b/.github/workflows/e2e-subtensor-tests.yaml
@@ -90,7 +90,7 @@ jobs:
 
       - name: Setup subtensor repo
         working-directory: ${{ github.workspace }}/subtensor
-        run: git checkout testnet
+        run: git checkout devnet
 
       - name: Run tests
         run: |

From b352c3f4e2cfb908cd99565fd53203e2085e77a5 Mon Sep 17 00:00:00 2001
From: ibraheem-opentensor
 <165814940+ibraheem-opentensor@users.noreply.github.com>
Date: Tue, 10 Dec 2024 15:09:40 -0800
Subject: [PATCH 3/3] Switching back to testnet

---
 .github/workflows/e2e-subtensor-tests.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/e2e-subtensor-tests.yaml b/.github/workflows/e2e-subtensor-tests.yaml
index 9dbce4cd62..0bc467a94d 100644
--- a/.github/workflows/e2e-subtensor-tests.yaml
+++ b/.github/workflows/e2e-subtensor-tests.yaml
@@ -90,7 +90,7 @@ jobs:
 
       - name: Setup subtensor repo
         working-directory: ${{ github.workspace }}/subtensor
-        run: git checkout devnet
+        run: git checkout testnet
 
       - name: Run tests
         run: |