1 files changed, 65 insertions, 0 deletions
diff --git a/src/arrow/c_glib/test/test-map-scalar.rb b/src/arrow/c_glib/test/test-map-scalar.rb
new file mode 100644
index 000000000..9c6eb69e0
--- /dev/null
+++ b/src/arrow/c_glib/test/test-map-scalar.rb
@@ -0,0 +1,65 @@
+# 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 TestMapScalar < Test::Unit::TestCase
+  include Helper::Buildable
+
+  def setup
+    @value = build_struct_array([
+                                  Arrow::Field.new("key",
+                                                   Arrow::StringDataType.new,
+                                                   false),
+                                  Arrow::Field.new("value",
+                                                   Arrow::Int8DataType.new),
+                                ],
+                                [
+                                  {
+                                    "key" => "hello",
+                                    "value" => 1,
+                                  },
+                                  {
+                                    "key" => "world",
+                                    "value" => 2,
+                                  },
+                                ])
+    @scalar = Arrow::MapScalar.new(@value)
+  end
+
+  def test_data_type
+    assert_equal(@value.value_data_type,
+                 @scalar.data_type)
+  end
+
+  def test_valid?
+    assert do
+      @scalar.valid?
+    end
+  end
+
+  def test_equal
+    assert_equal(Arrow::MapScalar.new(@value),
+                 @scalar)
+  end
+
+  def test_to_s
+    assert_equal("...", @scalar.to_s)
+  end
+
+  def test_value
+    assert_equal(@value, @scalar.value)
+  end
+end