diff --git a/swh/search/api/server.py b/swh/search/api/server.py
--- a/swh/search/api/server.py
+++ b/swh/search/api/server.py
@@ -52,7 +52,8 @@
 @app.before_first_request
 def initialized_index():
     search = _get_search()
-    logger.info("Initializing indexes with configuration: ", search.origin_config)
+    if app.config["search"]["cls"] == "elasticsearch":
+        logger.info("Initializing indexes with configuration: ", search.origin_config)
     search.initialize()
 
 
diff --git a/swh/search/tests/test_api_client.py b/swh/search/tests/test_api_client.py
--- a/swh/search/tests/test_api_client.py
+++ b/swh/search/tests/test_api_client.py
@@ -12,9 +12,10 @@
 from swh.search.api.server import app
 
 from .test_elasticsearch import CommonElasticsearchSearchTest
+from .test_in_memory import CommonInmemorySearchTest
 
 
-class TestRemoteSearch(
+class TestRemoteSearchElasticSearch(
     CommonElasticsearchSearchTest, ServerTestFixture, unittest.TestCase
 ):
     @pytest.fixture(autouse=True)
@@ -65,3 +66,24 @@
     )
     def test_origin_url_paging(self, count):
         pass
+
+
+class TestRemoteSearchInMemory(
+    CommonInmemorySearchTest, ServerTestFixture, unittest.TestCase
+):
+    def setUp(self):
+        self.config = {
+            "search": {
+                "cls": "memory",
+            }
+        }
+        self.app = app
+        super().setUp()
+        # self.reset()
+        self.search = get_search(
+            "remote",
+            url=self.url(),
+        )
+
+    def reset(self):
+        pass
diff --git a/swh/search/tests/test_in_memory.py b/swh/search/tests/test_in_memory.py
--- a/swh/search/tests/test_in_memory.py
+++ b/swh/search/tests/test_in_memory.py
@@ -14,11 +14,13 @@
 from .test_search import CommonSearchTest
 
 
-class InmemorySearchTest(unittest.TestCase, CommonSearchTest):
+class CommonInmemorySearchTest(CommonSearchTest):
     @pytest.fixture(autouse=True)
     def _instantiate_search(self):
         self.search = get_search("memory")
 
+
+class InmemorySearchTest(CommonInmemorySearchTest, unittest.TestCase):
     def setUp(self):
         self.reset()