diff --git a/tests/dbt/test_graph.py b/tests/dbt/test_graph.py
index 6e11db691c..cdeac44a86 100644
--- a/tests/dbt/test_graph.py
+++ b/tests/dbt/test_graph.py
@@ -51,12 +51,20 @@
 SAMPLE_DBT_LS_OUTPUT = Path(__file__).parent.parent / "sample/sample_dbt_ls.txt"
 SOURCE_RENDERING_BEHAVIOR = SourceRenderingBehavior(os.getenv("SOURCE_RENDERING_BEHAVIOR", "none"))
 
+# File and directory names to skip when copying dbt project trees in tests (keeps fixture output deterministic).
+_DBT_PROJECT_COPY_IGNORED_FILE_AND_DIR_NAMES = (".user.yml", ".DS_Store", "logs", "target")
+
 if AIRFLOW_VERSION.major >= _AIRFLOW3_MAJOR_VERSION:
     object_storage_path = "airflow.sdk.ObjectStoragePath"
 else:
     object_storage_path = "airflow.io.path.ObjectStoragePath"
 
 
+def _ignore_when_copying_dbt_project(directory: str, names: list[str]) -> list[str]:
+    """Names to skip in copytree so the fixture tree is deterministic."""
+    return [name for name in names if name in _DBT_PROJECT_COPY_IGNORED_FILE_AND_DIR_NAMES]
+
+
 @pytest.fixture
 def tmp_dbt_project_dir():
     """
@@ -66,9 +74,7 @@ def tmp_dbt_project_dir():
 
     tmp_dir = Path(tempfile.mkdtemp())
     target_proj_dir = tmp_dir / DBT_PROJECT_NAME
-    shutil.copytree(source_proj_dir, target_proj_dir)
-    shutil.rmtree(target_proj_dir / "logs", ignore_errors=True)
-    shutil.rmtree(target_proj_dir / "target", ignore_errors=True)
+    shutil.copytree(source_proj_dir, target_proj_dir, ignore=_ignore_when_copying_dbt_project)
     yield tmp_dir
 
     shutil.rmtree(tmp_dir, ignore_errors=True)  # delete directory
@@ -83,9 +89,7 @@ def tmp_altered_dbt_project_dir():
 
     tmp_dir = Path(tempfile.mkdtemp())
     target_proj_dir = tmp_dir / ALTERED_DBT_PROJECT_NAME
-    shutil.copytree(source_proj_dir, target_proj_dir)
-    shutil.rmtree(target_proj_dir / "logs", ignore_errors=True)
-    shutil.rmtree(target_proj_dir / "target", ignore_errors=True)
+    shutil.copytree(source_proj_dir, target_proj_dir, ignore=_ignore_when_copying_dbt_project)
     yield tmp_dir
 
     shutil.rmtree(tmp_dir, ignore_errors=True)  # delete directory