1 files changed, 69 insertions, 0 deletions
diff --git a/src/arrow/ruby/red-arrow/test/test-list-data-type.rb b/src/arrow/ruby/red-arrow/test/test-list-data-type.rb
new file mode 100644
index 000000000..ada46394d
--- /dev/null
+++ b/src/arrow/ruby/red-arrow/test/test-list-data-type.rb
@@ -0,0 +1,69 @@
+# 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 ListDataTypeTest < Test::Unit::TestCase
+  sub_test_case(".new") do
+    test("Arrow::Field") do
+      field = Arrow::Field.new(:tag, :string)
+      assert_equal("list<tag: string>",
+                   Arrow::ListDataType.new(field).to_s)
+    end
+
+    test("name: String") do
+      assert_equal("list<tag: string>",
+                   Arrow::ListDataType.new(name: "tag", type: :string).to_s)
+    end
+
+    test("field: Arrow::Field") do
+      field = Arrow::Field.new(:tag, :string)
+      assert_equal("list<tag: string>",
+                   Arrow::ListDataType.new(field: field).to_s)
+    end
+
+    test("field: Hash") do
+      field_description = {name: "tag", type: :string}
+      assert_equal("list<tag: string>",
+                   Arrow::ListDataType.new(field: field_description).to_s)
+    end
+
+    test("Arrow::DataType") do
+      data_type = Arrow::BooleanDataType.new
+      assert_equal("list<item: bool>",
+                   Arrow::ListDataType.new(data_type).to_s)
+    end
+
+    test("String") do
+      assert_equal("list<item: bool>",
+                   Arrow::ListDataType.new("boolean").to_s)
+    end
+
+    test("Symbol") do
+      assert_equal("list<item: bool>",
+                   Arrow::ListDataType.new(:boolean).to_s)
+    end
+
+    test("[data type name, additional information]") do
+      assert_equal("list<item: time32[ms]>",
+                   Arrow::ListDataType.new([:time32, :milli]).to_s)
+    end
+
+    test("type: Symbol") do
+      assert_equal("list<item: bool>",
+                   Arrow::ListDataType.new(type: :boolean).to_s)
+    end
+  end
+end