test caching via s3

tests/test_s3.py

@@ -12,6 +12,7 @@
 
 from prefect_aws import AwsCredentials, MinIOCredentials
 from prefect_aws.client_parameters import AwsClientParameters
+from prefect_aws.credentials import _get_client_cached
 from prefect_aws.s3 import (
     S3Bucket,
     s3_copy,
@@ -1047,3 +1048,16 @@ def test_move_object_between_buckets(
 
         with pytest.raises(ClientError):
             assert s3_bucket_with_object.read_path("object") == b"TEST"
+
+    def test_client_is_cached_when_specified(self, aws_creds_block):
+        s3_bucket = S3Bucket(
+            bucket_name="bucket", credentials=aws_creds_block, cache_client=True
+        )
+
+        _get_client_cached.cache_clear()
+
+        s3_bucket._get_s3_client()
+        s3_bucket._get_s3_client()
+
+        assert _get_client_cached.cache_info().hits == 1
+        assert _get_client_cached.cache_info().misses == 1