1 files changed, 110 insertions, 0 deletions
diff --git a/src/arrow/ruby/red-arrow/test/test-map-array-builder.rb b/src/arrow/ruby/red-arrow/test/test-map-array-builder.rb
new file mode 100644
index 000000000..80e571448
--- /dev/null
+++ b/src/arrow/ruby/red-arrow/test/test-map-array-builder.rb
@@ -0,0 +1,110 @@
+# 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 MapArrayBuilderTest < Test::Unit::TestCase
+  def setup
+    key_type = Arrow::StringDataType.new
+    item_type = Arrow::Int16DataType.new
+    data_type = Arrow::MapDataType.new(key_type, item_type)
+    @builder = Arrow::MapArrayBuilder.new(data_type)
+  end
+
+  sub_test_case("#append_value") do
+    test("nil") do
+      @builder.append_value(nil)
+      array = @builder.finish
+      assert_equal([nil], array.collect {|value| value})
+    end
+
+    test("Hash") do
+      @builder.append_value({"a" => 0, "b" => 1})
+      @builder.append_value({"c" => 0, "d" => 1})
+      array = @builder.finish
+      assert_equal([
+                     {"a" => 0, "b" => 1},
+                     {"c" => 0, "d" => 1}
+                   ],
+                   array.collect {|value| value})
+    end
+
+    test("#each") do
+      @builder.append_value([["a", 0], ["b", 1]])
+      @builder.append_value([["c", 0], ["d", 1]])
+      array = @builder.finish
+      assert_equal([
+                     {"a" => 0, "b" => 1},
+                     {"c" => 0, "d" => 1}
+                   ],
+                   array.collect {|value| value})
+    end
+  end
+
+  sub_test_case("#append_values") do
+    test("[nil]") do
+      @builder.append_values([nil])
+      array = @builder.finish
+      assert_equal([nil], array.collect {|value| value})
+    end
+
+    test("[Hash]") do
+      @builder.append_values([{"a" => 0, "b" => 1}, {"c" => 0, "d" => 1}])
+      array = @builder.finish
+      assert_equal([
+                     {"a" => 0, "b" => 1},
+                     {"c" => 0, "d" => 1}
+                   ],
+                   array.collect {|value| value})
+    end
+
+    test("[#each]") do
+      @builder.append_values([[["a", 0], ["b", 1]], [["c", 0], ["d", 1]]])
+      array = @builder.finish
+      assert_equal([
+                     {"a" => 0, "b" => 1},
+                     {"c" => 0, "d" => 1}
+                   ],
+                   array.collect {|value| value})
+    end
+
+    test("[nil, Hash, #each]") do
+      @builder.append_values([nil, {"a" => 0, "b" => 1}, [["c", 0], ["d", 1]]])
+      array = @builder.finish
+      assert_equal([
+                     nil,
+                     {"a" => 0, "b" => 1},
+                     {"c" => 0, "d" => 1}
+                   ],
+                   array.collect {|value| value})
+    end
+
+    test("is_valids") do
+      @builder.append_values([
+                               {"a" => 0, "b" => 1},
+                               {"c" => 0, "d" => 1},
+                               {"e" => 0, "f" => 1}
+                             ],
+                             [true, false, true])
+      array = @builder.finish
+      assert_equal([
+                     {"a" => 0, "b" => 1},
+                     nil,
+                     {"e" => 0, "f" => 1}
+                   ],
+                   array.collect {|value| value})
+    end
+  end
+end