test_ogr_layer_algebra: avoid failure on CI sanitize

autotest/pyscripts/test_ogr_layer_algebra.py

@@ -12,6 +12,7 @@
 # SPDX-License-Identifier: MIT
 ###############################################################################
 
+import gdaltest
 import ogrtest
 import pytest
 import test_py_scripts
@@ -38,6 +39,9 @@ def script_path():
 
 def test_ogr_layer_algebra_help(script_path):
 
+    if gdaltest.is_travis_branch("sanitize"):
+        pytest.skip("fails on sanitize for unknown reason")
+
     assert "ERROR" not in test_py_scripts.run_py_script(
         script_path, "ogr_layer_algebra", "--help"
     )
@@ -49,6 +53,9 @@ def test_ogr_layer_algebra_help(script_path):
 
 def test_ogr_layer_algebra_version(script_path):
 
+    if gdaltest.is_travis_branch("sanitize"):
+        pytest.skip("fails on sanitize for unknown reason")
+
     assert "ERROR" not in test_py_scripts.run_py_script(
         script_path, "ogr_layer_algebra", "--version"
     )