return integer value for exists and multiple keys

redis · Sep 16, 2019 · aa5b22d · aa5b22d
1 parent 78bf940
commit aa5b22d
Show file tree

Hide file tree

Showing 2 changed files with 17 additions and 1 deletion.
diff --git a/lib/redis.rb b/lib/redis.rb
@@ -555,7 +555,11 @@ def unlink(*keys)
   # @return [Boolean]
   def exists(key)
     synchronize do |client|
-      client.call([:exists, key], &Boolify)
+      if key.is_a?(Array)
+        client.call([:exists, key])
+      else
+        client.call([:exists, key], &Boolify)
+      end
     end
   end
 

diff --git a/test/lint/value_types.rb b/test/lint/value_types.rb
@@ -10,6 +10,18 @@ def test_exists
       assert_equal true,  r.exists("foo")
     end
 
+    def test_exists_multiple_keys
+      assert_equal 0, r.exists(["foo", "baz"])
+
+      r.set("foo", "s1")
+
+      assert_equal 1,  r.exists(["foo", "baz"])
+
+      r.set("baz", "s2")
+
+      assert_equal 2,  r.exists(["foo", "baz"])
+    end
+
     def test_type
       assert_equal "none", r.type("foo")