hrandfield (#1513)

* hrandfield

* use mapping in hset

* skip if version not fit

* remove empty line

* flake8 comments

* new line for each comment

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/test_commands.py b/tests/test_commands.py
index 9884035..27117e3 100644
--- a/tests/test_commands.py
+++ b/tests/test_commands.py
@@ -895,6 +895,19 @@ class TestRedisCommands:
         "PTTL on servers 2.8 and after return -2 when the key doesn't exist"
         assert r.pttl('a') == -2
 
+    @skip_if_server_version_lt('6.2.0')
+    def test_hrandfield(self, r):
+        assert r.hrandfield('key') is None
+        r.hset('key', mapping={'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5})
+        assert r.hrandfield('key') is not None
+        assert len(r.hrandfield('key', 2)) == 2
+        # with values
+        assert len(r.hrandfield('key', 2, True)) == 4
+        # without duplications
+        assert len(r.hrandfield('key', 10)) == 5
+        # with duplications
+        assert len(r.hrandfield('key', -10)) == 10
+
     def test_randomkey(self, r):
         assert r.randomkey() is None
         for key in ('a', 'b', 'c'):