[arrow] branch master updated: ARROW-4184: [Ruby] Add Arrow::RecordBatch#to_table

[shiro]

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The following commit(s) were added to refs/heads/master by this push:
     new a3aed3b  ARROW-4184: [Ruby] Add Arrow::RecordBatch#to_table
a3aed3b is described below

commit a3aed3b60bd61c55d7402c4484e480f1998b99f1
Author: Kouhei Sutou <k...@clear-code.com>
AuthorDate: Wed Jan 9 09:17:46 2019 +0900

    ARROW-4184: [Ruby] Add Arrow::RecordBatch#to_table
    
    Author: Kouhei Sutou <k...@clear-code.com>
    
    Closes #3339 from kou/ruby-record-batch-to-table and squashes the following 
commits:
    
    a6fab35f <Kouhei Sutou> Require gobject-introspection gem 3.3.1 or later
    4a1f3564 <Kouhei Sutou>  Add Arrow::RecordBatch#to_table
---
 ruby/red-arrow/lib/arrow/record-batch.rb |  9 +++++++++
 ruby/red-arrow/red-arrow.gemspec         |  2 +-
 ruby/red-arrow/test/test-record-batch.rb | 23 ++++++++++++++---------
 3 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/ruby/red-arrow/lib/arrow/record-batch.rb 
b/ruby/red-arrow/lib/arrow/record-batch.rb
index f5f8ea2..6d9c35b 100644
--- a/ruby/red-arrow/lib/arrow/record-batch.rb
+++ b/ruby/red-arrow/lib/arrow/record-batch.rb
@@ -29,6 +29,15 @@ module Arrow
       @columns ||= columns_raw
     end
 
+    # Converts the record batch to {Arrow::Table}.
+    #
+    # @return [Arrow::Table]
+    #
+    # @since 0.12.0
+    def to_table
+      Table.new(schema, [self])
+    end
+
     def respond_to_missing?(name, include_private)
       return true if find_column(name)
       super
diff --git a/ruby/red-arrow/red-arrow.gemspec b/ruby/red-arrow/red-arrow.gemspec
index 8e79c75..2d417f0 100644
--- a/ruby/red-arrow/red-arrow.gemspec
+++ b/ruby/red-arrow/red-arrow.gemspec
@@ -45,7 +45,7 @@ Gem::Specification.new do |spec|
   spec.test_files += Dir.glob("test/**/*")
   spec.extensions = ["dependency-check/Rakefile"]
 
-  spec.add_runtime_dependency("gobject-introspection", ">= 3.1.1")
+  spec.add_runtime_dependency("gobject-introspection", ">= 3.3.1")
   spec.add_runtime_dependency("pkg-config")
   spec.add_runtime_dependency("native-package-installer")
 
diff --git a/ruby/red-arrow/test/test-record-batch.rb 
b/ruby/red-arrow/test/test-record-batch.rb
index 994b16d..4dac085 100644
--- a/ruby/red-arrow/test/test-record-batch.rb
+++ b/ruby/red-arrow/test/test-record-batch.rb
@@ -16,16 +16,16 @@
 # under the License.
 
 class RecordBatchTest < Test::Unit::TestCase
-  sub_test_case(".each") do
-    setup do
-      fields = [
-        Arrow::Field.new("count", :uint32),
-      ]
-      @schema = Arrow::Schema.new(fields)
-      @counts = Arrow::UInt32Array.new([1, 2, 4, 8])
-      @record_batch = Arrow::RecordBatch.new(@schema, @counts.length, 
[@counts])
-    end
+  setup do
+    fields = [
+      Arrow::Field.new("count", :uint32),
+    ]
+    @schema = Arrow::Schema.new(fields)
+    @counts = Arrow::UInt32Array.new([1, 2, 4, 8])
+    @record_batch = Arrow::RecordBatch.new(@schema, @counts.length, [@counts])
+  end
 
+  sub_test_case(".each") do
     test("default") do
       records = []
       @record_batch.each do |record|
@@ -54,4 +54,9 @@ class RecordBatchTest < Test::Unit::TestCase
                    records.collect {|record, i| [record.index, i]})
     end
   end
+
+  test("#to_table") do
+    assert_equal(Arrow::Table.new(@schema, [@counts]),
+                 @record_batch.to_table)
+  end
 end