1 files changed, 58 insertions, 0 deletions
diff --git a/src/arrow/ruby/red-arrow/test/test-sort-options.rb b/src/arrow/ruby/red-arrow/test/test-sort-options.rb
new file mode 100644
index 000000000..0afd65b0f
--- /dev/null
+++ b/src/arrow/ruby/red-arrow/test/test-sort-options.rb
@@ -0,0 +1,58 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF 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.
+
+class SortOptionsTest < Test::Unit::TestCase
+  sub_test_case("#initialize") do
+    test("none") do
+      options = Arrow::SortOptions.new
+      assert_equal([],
+                   options.sort_keys.collect(&:to_s))
+    end
+
+    test("-String, Symbol") do
+      options = Arrow::SortOptions.new("-count", :age)
+      assert_equal(["-count", "+age"],
+                   options.sort_keys.collect(&:to_s))
+    end
+  end
+
+  sub_test_case("instance methods") do
+    setup do
+      @options = Arrow::SortOptions.new
+    end
+
+    sub_test_case("#add_sort_key") do
+      test("-String") do
+        @options.add_sort_key("-count")
+        assert_equal(["-count"],
+                     @options.sort_keys.collect(&:to_s))
+      end
+
+      test("-String, Symbol") do
+        @options.add_sort_key("-count", :desc)
+        assert_equal(["--count"],
+                     @options.sort_keys.collect(&:to_s))
+      end
+
+      test("SortKey") do
+        @options.add_sort_key(Arrow::SortKey.new("-count"))
+        assert_equal(["-count"],
+                     @options.sort_keys.collect(&:to_s))
+      end
+    end
+  end
+end