Disable data cache in unit tests (#4174)

src/otx/core/data/mem_cache.py

@@ -323,7 +323,7 @@ def check_system_memory(cls, mem_size: int, available_cpu_mem: int) -> bool:
         """Check there is enough system memory to maintain memory caching pool.
 
         Parameters:
-            mem_size: Requested memory size (bytes) for the memory cahcing pool
+            mem_size: Requested memory size (bytes) for the memory caching pool
             available_cpu_mem: Memory capacity (bytes) of this system
         Returns:
             Return true if there is enough system memory. Otherwise, return false.

tests/conftest.py

@@ -42,7 +42,7 @@ def pytest_addoption(parser: pytest.Parser):
         action="store",
         default="all",
         choices=("speed", "balance", "accuracy", "default", "other", "all"),
-        help="Choose speed|balcence|accuracy|default|other|all. Defaults to all.",
+        help="Choose speed|balance|accuracy|default|other|all. Defaults to all.",
     )
     parser.addoption(
         "--data-group",

tests/unit/conftest.py

@@ -0,0 +1,17 @@
+# Copyright (C) 2025 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+#
+from __future__ import annotations
+
+import pytest
+from otx.core.data.mem_cache import MemCacheHandlerSingleton
+
+
+@pytest.fixture(autouse=True)
+def fxt_disable_mem_cache():
+    """Disable mem cache to reduce memory usage."""
+
+    original_mem_limit = MemCacheHandlerSingleton.CPU_MEM_LIMITS_GIB
+    MemCacheHandlerSingleton.CPU_MEM_LIMITS_GIB = 99999999
+    yield
+    MemCacheHandlerSingleton.CPU_MEM_LIMITS_GIB = original_mem_limit