1 files changed, 78 insertions, 0 deletions
diff --git a/src/arrow/c_glib/test/test-dictionary-array.rb b/src/arrow/c_glib/test/test-dictionary-array.rb
new file mode 100644
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+++ b/src/arrow/c_glib/test/test-dictionary-array.rb
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+# 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 TestDictionaryArray < Test::Unit::TestCase
+  include Helper::Buildable
+
+  def setup
+    @index_data_type = Arrow::Int32DataType.new
+    @dictionary = build_string_array(["C", "C++", "Ruby"])
+    @ordered = false
+    @data_type = Arrow::DictionaryDataType.new(@index_data_type,
+                                               @dictionary.value_data_type,
+                                               @ordered)
+  end
+
+  sub_test_case(".new") do
+    def test_new
+      indices = build_int32_array([0, 2, 2, 1, 0])
+      dictionary_array = Arrow::DictionaryArray.new(@data_type,
+                                                    indices,
+                                                    @dictionary)
+      assert_equal(<<-STRING.chomp, dictionary_array.to_s)
+
+-- dictionary:
+  [
+    "C",
+    "C++",
+    "Ruby"
+  ]
+-- indices:
+  [
+    0,
+    2,
+    2,
+    1,
+    0
+  ]
+      STRING
+    end
+  end
+
+  sub_test_case("instance methods") do
+    def setup
+      super
+      @indices = build_int32_array([0, 2, 2, 1, 0])
+      @dictionary_array = Arrow::DictionaryArray.new(@data_type,
+                                                     @indices,
+                                                     @dictionary)
+    end
+
+    def test_indices
+      assert_equal(@indices, @dictionary_array.indices)
+    end
+
+    def test_dictionary
+      assert_equal(@dictionary, @dictionary_array.dictionary)
+    end
+
+    def test_dictionary_data_type
+      assert_equal(@data_type,
+                   @dictionary_array.dictionary_data_type)
+    end
+  end
+end