search unit tests

.github/workflows/ci.yml

@@ -61,7 +61,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [
-          "3.7",
           "3.8",
           "3.9",
           "3.10",

elasticsearch_dsl/_async/search.py

@@ -24,12 +24,26 @@
 from ..utils import AttrDict
 
 
-class Search(SearchBase):
+class AsyncSearch(SearchBase):
     def __aiter__(self):
         """
         Iterate over the hits.
         """
-        return aiter(await self.execute())
+
+        class ResultsIterator:
+            def __init__(self, search):
+                self.search = search
+                self.iterator = None
+
+            async def __anext__(self):
+                if self.iterator is None:
+                    self.iterator = iter(await self.search.execute())
+                try:
+                    return next(self.iterator)
+                except StopIteration:
+                    raise StopAsyncIteration()
+
+        return ResultsIterator(self)
 
     async def count(self):
         """

elasticsearch_dsl/_sync/search.py

@@ -29,7 +29,21 @@ def __iter__(self):
         """
         Iterate over the hits.
         """
-        return iter(self.execute())
+
+        class ResultsIterator:
+            def __init__(self, search):
+                self.search = search
+                self.iterator = None
+
+            def __next__(self):
+                if self.iterator is None:
+                    self.iterator = iter(self.search.execute())
+                try:
+                    return next(self.iterator)
+                except StopIteration:
+                    raise StopIteration()
+
+        return ResultsIterator(self)
 
     def count(self):
         """

elasticsearch_dsl/search_base.py

@@ -333,12 +333,6 @@ def filter(self, *args, **kwargs):
     def exclude(self, *args, **kwargs):
         return self.query(Bool(filter=[~Q(*args, **kwargs)]))
 
-    def __iter__(self):
-        """
-        Iterate over the hits.
-        """
-        return iter(self.execute())
-
     def __getitem__(self, n):
         """
         Support slicing the `Search` instance for pagination.

setup.cfg

@@ -11,3 +11,4 @@ filterwarnings =
     error
     ignore:Legacy index templates are deprecated in favor of composable templates.:elasticsearch.exceptions.ElasticsearchWarning
     ignore:datetime.datetime.utcfromtimestamp\(\) is deprecated and scheduled for removal in a future version..*:DeprecationWarning
+asyncio_mode = auto

setup.py

@@ -37,8 +37,10 @@
     "pytest",
     "pytest-cov",
     "pytest-mock",
+    "pytest-asyncio",
     "pytz",
     "coverage",
+    "mock",  # needed to have AsyncMock in Python <= 3.7
     # Override Read the Docs default (sphinx<2 and sphinx-rtd-theme<0.5)
     "sphinx>2",
     "sphinx-rtd-theme>0.5",

tests/_async/__init__.py

@@ -0,0 +1,16 @@
+#  Licensed to Elasticsearch B.V. under one or more contributor
+#  license agreements. See the NOTICE file distributed with
+#  this work for additional information regarding copyright
+#  ownership. Elasticsearch B.V. licenses this file to you under
+#  the Apache License, Version 2.0 (the "License"); you may
+#  not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+# 	http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing,
+#  software distributed under the License is distributed on an
+#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#  KIND, either express or implied.  See the License for the
+#  specific language governing permissions and limitations
+#  under the License.