1 files changed, 86 insertions, 0 deletions
diff --git a/src/arrow/c_glib/test/test-sparse-union-array.rb b/src/arrow/c_glib/test/test-sparse-union-array.rb
new file mode 100644
index 000000000..1132ccb45
--- /dev/null
+++ b/src/arrow/c_glib/test/test-sparse-union-array.rb
@@ -0,0 +1,86 @@
+# 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 TestSparseUnionArray < Test::Unit::TestCase
+  include Helper::Buildable
+
+  sub_test_case(".new") do
+    sub_test_case("default") do
+      def setup
+        type_ids = build_int8_array([0, 1, 0, 1, 0])
+        fields = [
+          build_int16_array([1, nil, nil, nil, 5]),
+          build_string_array([nil, "b", nil, "d", nil]),
+        ]
+        @array = Arrow::SparseUnionArray.new(type_ids, fields)
+      end
+
+      def test_value_data_type
+        fields = [
+          Arrow::Field.new("0", Arrow::Int16DataType.new),
+          Arrow::Field.new("1", Arrow::StringDataType.new),
+        ]
+        assert_equal(Arrow::SparseUnionDataType.new(fields, [0, 1]),
+                     @array.value_data_type)
+      end
+
+      def test_field
+        assert_equal([
+                       build_int16_array([1, nil, nil, nil, 5]),
+                       build_string_array([nil, "b", nil, "d", nil]),
+                     ],
+                     [
+                       @array.get_field(0),
+                       @array.get_field(1),
+                     ])
+      end
+    end
+
+    sub_test_case("DataType") do
+      def setup
+        data_type_fields = [
+          Arrow::Field.new("number", Arrow::Int16DataType.new),
+          Arrow::Field.new("text", Arrow::StringDataType.new),
+        ]
+        type_codes = [11, 13]
+        @data_type = Arrow::SparseUnionDataType.new(data_type_fields, type_codes)
+        type_ids = build_int8_array([11, 13, 11, 13, 11])
+        fields = [
+          build_int16_array([1, nil, nil, nil, 5]),
+          build_string_array([nil, "b", nil, "d", nil]),
+        ]
+        @array = Arrow::SparseUnionArray.new(@data_type, type_ids, fields)
+      end
+
+      def test_value_data_type
+        assert_equal(@data_type,
+                     @array.value_data_type)
+      end
+
+      def test_field
+        assert_equal([
+                       build_int16_array([1, nil, nil, nil, 5]),
+                       build_string_array([nil, "b", nil, "d", nil]),
+                     ],
+                     [
+                       @array.get_field(0),
+                       @array.get_field(1),
+                     ])
+      end
+    end
+  end
+end