1 files changed, 43 insertions, 0 deletions
diff --git a/src/arrow/c_glib/test/test-count.rb b/src/arrow/c_glib/test/test-count.rb
new file mode 100644
index 000000000..6e9421914
--- /dev/null
+++ b/src/arrow/c_glib/test/test-count.rb
@@ -0,0 +1,43 @@
+# 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 TestCount < Test::Unit::TestCase
+  include Helper::Buildable
+  include Helper::Omittable
+
+  sub_test_case("mode") do
+    def test_default
+      assert_equal(2, build_int32_array([1, nil, 3]).count)
+
+      options = Arrow::CountOptions.new
+      options.mode = Arrow::CountMode::ONLY_VALID
+      assert_equal(2, build_int32_array([1, nil, 3]).count(options))
+    end
+
+    def test_nulls
+      options = Arrow::CountOptions.new
+      options.mode = Arrow::CountMode::ONLY_NULL
+      assert_equal(1, build_int32_array([1, nil, 3]).count(options))
+    end
+
+    def test_all
+      options = Arrow::CountOptions.new
+      options.mode = Arrow::CountMode::ALL
+      assert_equal(3, build_int32_array([1, nil, 3]).count(options))
+    end
+  end
+end