1 files changed, 79 insertions, 0 deletions
diff --git a/src/arrow/ruby/red-arrow/test/test-list-array-builder.rb b/src/arrow/ruby/red-arrow/test/test-list-array-builder.rb
new file mode 100644
index 000000000..aee31e73b
--- /dev/null
+++ b/src/arrow/ruby/red-arrow/test/test-list-array-builder.rb
@@ -0,0 +1,79 @@
+# 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 ListArrayBuilderTest < Test::Unit::TestCase
+  def setup
+    @data_type = Arrow::ListDataType.new(name: "visible", type: :boolean)
+    @builder = Arrow::ListArrayBuilder.new(@data_type)
+  end
+
+  sub_test_case("#append_value") do
+    test("nil") do
+      @builder.append_value(nil)
+      array = @builder.finish
+      assert_equal(nil, array[0])
+    end
+
+    test("Array") do
+      @builder.append_value([true, false, true])
+      array = @builder.finish
+      assert_equal([true, false, true], array[0].to_a)
+    end
+  end
+
+  sub_test_case("#append_values") do
+    test("[nil, Array]") do
+      @builder.append_values([[false], nil, [true, false, true]])
+      array = @builder.finish
+      assert_equal([
+                     [false],
+                     nil,
+                     [true, false, true],
+                   ],
+                   array.collect {|list| list ? list.to_a : nil})
+    end
+
+    test("is_valids") do
+      @builder.append_values([[false], [true, true], [true, false, true]],
+                             [true, false, true])
+      array = @builder.finish
+      assert_equal([
+                     [false],
+                     nil,
+                     [true, false, true],
+                   ],
+                   array.collect {|list| list ? list.to_a : nil})
+    end
+  end
+
+  sub_test_case("#append") do
+    test("backward compatibility") do
+      @builder.append
+      @builder.value_builder.append(true)
+      @builder.value_builder.append(false)
+      @builder.append
+      @builder.value_builder.append(true)
+      array = @builder.finish
+
+      assert_equal([
+                     [true, false],
+                     [true],
+                   ],
+                   array.collect(&:to_a))
+    end
+  end
+end