From c8c371610bee33404fb0fdc3ed52be47bba8585f Mon Sep 17 00:00:00 2001
From: Test <test@test.com>
Date: Fri, 13 Mar 2026 09:42:46 +0000
Subject: [PATCH] fix(test): use capsys instead of caplog for structlog output

TestLogGpuMemory tests used pytest's caplog fixture to capture log
output, but log_gpu_memory() uses structlog which writes to stdout,
not Python's standard logging module. caplog only captures standard
logging messages, so assertions always failed on empty text.

Switch to capsys which captures stdout directly.
---
 studio/backend/tests/test_utils.py | 32 +++++++++++-------------------
 1 file changed, 12 insertions(+), 20 deletions(-)

diff --git a/studio/backend/tests/test_utils.py b/studio/backend/tests/test_utils.py
index 3c33b33cb3..9ff457bb0b 100644
--- a/studio/backend/tests/test_utils.py
+++ b/studio/backend/tests/test_utils.py
@@ -285,7 +285,7 @@ class TestLogGpuMemory:
     def test_does_not_raise(self):
         log_gpu_memory("test")
 
-    def test_logs_gpu_info_when_available(self, caplog):
+    def test_logs_gpu_info_when_available(self, capsys):
         fake_info = {
             "available": True,
             "backend": "cuda",
@@ -295,35 +295,27 @@ class TestLogGpuMemory:
             "utilization_pct": 12.5,
             "free_gb": 14.0,
         }
-        import structlog
-        from loggers import get_logger
 
-        with (
-            patch(
-                "utils.hardware.hardware.get_gpu_memory_info", return_value = fake_info
-            ),
-            caplog.at_level(logging.INFO, logger = "utils.hardware.hardware"),
+        with patch(
+            "utils.hardware.hardware.get_gpu_memory_info", return_value = fake_info
         ):
             log_gpu_memory("unit-test")
 
-        assert "unit-test" in caplog.text
-        assert "CUDA" in caplog.text
-        assert "FakeGPU" in caplog.text
+        captured = capsys.readouterr().out
+        assert "unit-test" in captured
+        assert "CUDA" in captured
+        assert "FakeGPU" in captured
 
-    def test_logs_cpu_fallback_when_no_gpu(self, caplog):
+    def test_logs_cpu_fallback_when_no_gpu(self, capsys):
         fake_info = {"available": False, "backend": "cpu"}
-        import structlog
-        from loggers import get_logger
 
-        with (
-            patch(
-                "utils.hardware.hardware.get_gpu_memory_info", return_value = fake_info
-            ),
-            caplog.at_level(logging.INFO, logger = "utils.hardware.hardware"),
+        with patch(
+            "utils.hardware.hardware.get_gpu_memory_info", return_value = fake_info
         ):
             log_gpu_memory("cpu-test")
 
-        assert "No GPU available" in caplog.text
+        captured = capsys.readouterr().out
+        assert "No GPU available" in captured
 
 
 # ========== format_error_message() ==========