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Posted to commits@arrow.apache.org by we...@apache.org on 2017/04/24 02:15:52 UTC
arrow git commit: ARROW-880: [GLib] Support getting raw data of
primitive arrays
Repository: arrow
Updated Branches:
refs/heads/master 33ac8a291 -> 95f489c4c
ARROW-880: [GLib] Support getting raw data of primitive arrays
Author: Kouhei Sutou <ko...@clear-code.com>
Closes #586 from kou/glib-primitive-array-buffer and squashes the following commits:
970b109 [Kouhei Sutou] [GLib] Support getting raw data of primitive arrays
Project: http://git-wip-us.apache.org/repos/asf/arrow/repo
Commit: http://git-wip-us.apache.org/repos/asf/arrow/commit/95f489c4
Tree: http://git-wip-us.apache.org/repos/asf/arrow/tree/95f489c4
Diff: http://git-wip-us.apache.org/repos/asf/arrow/diff/95f489c4
Branch: refs/heads/master
Commit: 95f489c4c62f964cc32374686e4917774aa8aef2
Parents: 33ac8a2
Author: Kouhei Sutou <ko...@clear-code.com>
Authored: Sun Apr 23 22:15:46 2017 -0400
Committer: Wes McKinney <we...@twosigma.com>
Committed: Sun Apr 23 22:15:46 2017 -0400
----------------------------------------------------------------------
c_glib/arrow-glib/array.cpp | 53 +++++++++++++++-----
c_glib/arrow-glib/array.h | 89 +++++++++++++++++++++++++---------
c_glib/test/test-boolean-array.rb | 9 ++++
c_glib/test/test-double-array.rb | 9 ++++
c_glib/test/test-float-array.rb | 9 ++++
c_glib/test/test-int16-array.rb | 9 ++++
c_glib/test/test-int32-array.rb | 9 ++++
c_glib/test/test-int64-array.rb | 9 ++++
c_glib/test/test-int8-array.rb | 9 ++++
c_glib/test/test-uint16-array.rb | 9 ++++
c_glib/test/test-uint32-array.rb | 9 ++++
c_glib/test/test-uint64-array.rb | 9 ++++
c_glib/test/test-uint8-array.rb | 9 ++++
13 files changed, 208 insertions(+), 33 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/arrow-glib/array.cpp
----------------------------------------------------------------------
diff --git a/c_glib/arrow-glib/array.cpp b/c_glib/arrow-glib/array.cpp
index 2fd0901..3ca860d 100644
--- a/c_glib/arrow-glib/array.cpp
+++ b/c_glib/arrow-glib/array.cpp
@@ -344,9 +344,40 @@ garrow_null_array_new(gint64 length)
}
+G_DEFINE_TYPE(GArrowPrimitiveArray, \
+ garrow_primitive_array, \
+ GARROW_TYPE_ARRAY)
+
+static void
+garrow_primitive_array_init(GArrowPrimitiveArray *object)
+{
+}
+
+static void
+garrow_primitive_array_class_init(GArrowPrimitiveArrayClass *klass)
+{
+}
+
+/**
+ * garrow_primitive_array_get_buffer:
+ * @array: A #GArrowPrimitiveArray.
+ *
+ * Returns: (transfer full): The data of the array as #GArrowBuffer.
+ */
+GArrowBuffer *
+garrow_primitive_array_get_buffer(GArrowPrimitiveArray *array)
+{
+ auto arrow_array = garrow_array_get_raw(GARROW_ARRAY(array));
+ auto arrow_primitive_array =
+ static_cast<arrow::PrimitiveArray *>(arrow_array.get());
+ auto arrow_data = arrow_primitive_array->data();
+ return garrow_buffer_new_raw(&arrow_data);
+}
+
+
G_DEFINE_TYPE(GArrowBooleanArray, \
garrow_boolean_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_boolean_array_init(GArrowBooleanArray *object)
@@ -376,7 +407,7 @@ garrow_boolean_array_get_value(GArrowBooleanArray *array,
G_DEFINE_TYPE(GArrowInt8Array, \
garrow_int8_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_int8_array_init(GArrowInt8Array *object)
@@ -406,7 +437,7 @@ garrow_int8_array_get_value(GArrowInt8Array *array,
G_DEFINE_TYPE(GArrowUInt8Array, \
garrow_uint8_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_uint8_array_init(GArrowUInt8Array *object)
@@ -436,7 +467,7 @@ garrow_uint8_array_get_value(GArrowUInt8Array *array,
G_DEFINE_TYPE(GArrowInt16Array, \
garrow_int16_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_int16_array_init(GArrowInt16Array *object)
@@ -466,7 +497,7 @@ garrow_int16_array_get_value(GArrowInt16Array *array,
G_DEFINE_TYPE(GArrowUInt16Array, \
garrow_uint16_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_uint16_array_init(GArrowUInt16Array *object)
@@ -496,7 +527,7 @@ garrow_uint16_array_get_value(GArrowUInt16Array *array,
G_DEFINE_TYPE(GArrowInt32Array, \
garrow_int32_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_int32_array_init(GArrowInt32Array *object)
@@ -526,7 +557,7 @@ garrow_int32_array_get_value(GArrowInt32Array *array,
G_DEFINE_TYPE(GArrowUInt32Array, \
garrow_uint32_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_uint32_array_init(GArrowUInt32Array *object)
@@ -556,7 +587,7 @@ garrow_uint32_array_get_value(GArrowUInt32Array *array,
G_DEFINE_TYPE(GArrowInt64Array, \
garrow_int64_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_int64_array_init(GArrowInt64Array *object)
@@ -586,7 +617,7 @@ garrow_int64_array_get_value(GArrowInt64Array *array,
G_DEFINE_TYPE(GArrowUInt64Array, \
garrow_uint64_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_uint64_array_init(GArrowUInt64Array *object)
@@ -615,7 +646,7 @@ garrow_uint64_array_get_value(GArrowUInt64Array *array,
G_DEFINE_TYPE(GArrowFloatArray, \
garrow_float_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_float_array_init(GArrowFloatArray *object)
@@ -645,7 +676,7 @@ garrow_float_array_get_value(GArrowFloatArray *array,
G_DEFINE_TYPE(GArrowDoubleArray, \
garrow_double_array, \
- GARROW_TYPE_ARRAY)
+ GARROW_TYPE_PRIMITIVE_ARRAY)
static void
garrow_double_array_init(GArrowDoubleArray *object)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/arrow-glib/array.h
----------------------------------------------------------------------
diff --git a/c_glib/arrow-glib/array.h b/c_glib/arrow-glib/array.h
index f8c6734..9bb502e 100644
--- a/c_glib/arrow-glib/array.h
+++ b/c_glib/arrow-glib/array.h
@@ -115,6 +115,51 @@ GType garrow_null_array_get_type(void) G_GNUC_CONST;
GArrowNullArray *garrow_null_array_new(gint64 length);
+#define GARROW_TYPE_PRIMITIVE_ARRAY \
+ (garrow_primitive_array_get_type())
+#define GARROW_PRIMITIVE_ARRAY(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj), \
+ GARROW_TYPE_PRIMITIVE_ARRAY, \
+ GArrowPrimitiveArray))
+#define GARROW_PRIMITIVE_ARRAY_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass), \
+ GARROW_TYPE_PRIMITIVE_ARRAY, \
+ GArrowPrimitiveArrayClass))
+#define GARROW_IS_PRIMITIVE_ARRAY(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj), \
+ GARROW_TYPE_PRIMITIVE_ARRAY))
+#define GARROW_IS_PRIMITIVE_ARRAY_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass), \
+ GARROW_TYPE_PRIMITIVE_ARRAY))
+#define GARROW_PRIMITIVE_ARRAY_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj), \
+ GARROW_TYPE_PRIMITIVE_ARRAY, \
+ GArrowPrimitiveArrayClass))
+
+typedef struct _GArrowPrimitiveArray GArrowPrimitiveArray;
+typedef struct _GArrowPrimitiveArrayClass GArrowPrimitiveArrayClass;
+
+/**
+ * GArrowPrimitiveArray:
+ *
+ * It wraps `arrow::PrimitiveArray`.
+ */
+struct _GArrowPrimitiveArray
+{
+ /*< private >*/
+ GArrowArray parent_instance;
+};
+
+struct _GArrowPrimitiveArrayClass
+{
+ GArrowArrayClass parent_class;
+};
+
+GType garrow_primitive_array_get_type(void) G_GNUC_CONST;
+
+GArrowBuffer *garrow_primitive_array_get_buffer(GArrowPrimitiveArray *array);
+
+
#define GARROW_TYPE_BOOLEAN_ARRAY \
(garrow_boolean_array_get_type())
#define GARROW_BOOLEAN_ARRAY(obj) \
@@ -147,12 +192,12 @@ typedef struct _GArrowBooleanArrayClass GArrowBooleanArrayClass;
struct _GArrowBooleanArray
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowBooleanArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_boolean_array_get_type (void) G_GNUC_CONST;
@@ -192,12 +237,12 @@ typedef struct _GArrowInt8ArrayClass GArrowInt8ArrayClass;
struct _GArrowInt8Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowInt8ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_int8_array_get_type(void) G_GNUC_CONST;
@@ -238,12 +283,12 @@ typedef struct _GArrowUInt8ArrayClass GArrowUInt8ArrayClass;
struct _GArrowUInt8Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowUInt8ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_uint8_array_get_type(void) G_GNUC_CONST;
@@ -284,12 +329,12 @@ typedef struct _GArrowInt16ArrayClass GArrowInt16ArrayClass;
struct _GArrowInt16Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowInt16ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_int16_array_get_type(void) G_GNUC_CONST;
@@ -330,12 +375,12 @@ typedef struct _GArrowUInt16ArrayClass GArrowUInt16ArrayClass;
struct _GArrowUInt16Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowUInt16ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_uint16_array_get_type(void) G_GNUC_CONST;
@@ -376,12 +421,12 @@ typedef struct _GArrowInt32ArrayClass GArrowInt32ArrayClass;
struct _GArrowInt32Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowInt32ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_int32_array_get_type(void) G_GNUC_CONST;
@@ -422,12 +467,12 @@ typedef struct _GArrowUInt32ArrayClass GArrowUInt32ArrayClass;
struct _GArrowUInt32Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowUInt32ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_uint32_array_get_type(void) G_GNUC_CONST;
@@ -468,12 +513,12 @@ typedef struct _GArrowInt64ArrayClass GArrowInt64ArrayClass;
struct _GArrowInt64Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowInt64ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_int64_array_get_type(void) G_GNUC_CONST;
@@ -514,12 +559,12 @@ typedef struct _GArrowUInt64ArrayClass GArrowUInt64ArrayClass;
struct _GArrowUInt64Array
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowUInt64ArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_uint64_array_get_type(void) G_GNUC_CONST;
@@ -560,12 +605,12 @@ typedef struct _GArrowFloatArrayClass GArrowFloatArrayClass;
struct _GArrowFloatArray
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowFloatArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_float_array_get_type(void) G_GNUC_CONST;
@@ -606,12 +651,12 @@ typedef struct _GArrowDoubleArrayClass GArrowDoubleArrayClass;
struct _GArrowDoubleArray
{
/*< private >*/
- GArrowArray parent_instance;
+ GArrowPrimitiveArray parent_instance;
};
struct _GArrowDoubleArrayClass
{
- GArrowArrayClass parent_class;
+ GArrowPrimitiveArrayClass parent_class;
};
GType garrow_double_array_get_type(void) G_GNUC_CONST;
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-boolean-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-boolean-array.rb b/c_glib/test/test-boolean-array.rb
index 9cc3c94..15df1ed 100644
--- a/c_glib/test/test-boolean-array.rb
+++ b/c_glib/test/test-boolean-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestBooleanArray < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::BooleanArrayBuilder.new
+ builder.append(true)
+ builder.append(false)
+ builder.append(true)
+ array = builder.finish
+ assert_equal([0b101].pack("C*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::BooleanArrayBuilder.new
builder.append(true)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-double-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-double-array.rb b/c_glib/test/test-double-array.rb
index f9c000d..c644ac6 100644
--- a/c_glib/test/test-double-array.rb
+++ b/c_glib/test/test-double-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestDoubleArray < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::DoubleArrayBuilder.new
+ builder.append(-1.1)
+ builder.append(2.2)
+ builder.append(-4.4)
+ array = builder.finish
+ assert_equal([-1.1, 2.2, -4.4].pack("d*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::DoubleArrayBuilder.new
builder.append(1.5)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-float-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-float-array.rb b/c_glib/test/test-float-array.rb
index 020c705..84876f9 100644
--- a/c_glib/test/test-float-array.rb
+++ b/c_glib/test/test-float-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestFloatArray < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::FloatArrayBuilder.new
+ builder.append(-1.1)
+ builder.append(2.2)
+ builder.append(-4.4)
+ array = builder.finish
+ assert_equal([-1.1, 2.2, -4.4].pack("f*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::FloatArrayBuilder.new
builder.append(1.5)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-int16-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-int16-array.rb b/c_glib/test/test-int16-array.rb
index 2aa5b0c..4b30ddd 100644
--- a/c_glib/test/test-int16-array.rb
+++ b/c_glib/test/test-int16-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestInt16Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::Int16ArrayBuilder.new
+ builder.append(-1)
+ builder.append(2)
+ builder.append(-4)
+ array = builder.finish
+ assert_equal([-1, 2, -4].pack("s*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::Int16ArrayBuilder.new
builder.append(-1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-int32-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-int32-array.rb b/c_glib/test/test-int32-array.rb
index 9dd6b3a..90cf022 100644
--- a/c_glib/test/test-int32-array.rb
+++ b/c_glib/test/test-int32-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestInt32Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::Int32ArrayBuilder.new
+ builder.append(-1)
+ builder.append(2)
+ builder.append(-4)
+ array = builder.finish
+ assert_equal([-1, 2, -4].pack("l*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::Int32ArrayBuilder.new
builder.append(-1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-int64-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-int64-array.rb b/c_glib/test/test-int64-array.rb
index 612a8b4..d302201 100644
--- a/c_glib/test/test-int64-array.rb
+++ b/c_glib/test/test-int64-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestInt64Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::Int64ArrayBuilder.new
+ builder.append(-1)
+ builder.append(2)
+ builder.append(-4)
+ array = builder.finish
+ assert_equal([-1, 2, -4].pack("q*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::Int64ArrayBuilder.new
builder.append(-1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-int8-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-int8-array.rb b/c_glib/test/test-int8-array.rb
index ab00996..9f28fa7 100644
--- a/c_glib/test/test-int8-array.rb
+++ b/c_glib/test/test-int8-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestInt8Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::Int8ArrayBuilder.new
+ builder.append(-1)
+ builder.append(2)
+ builder.append(-4)
+ array = builder.finish
+ assert_equal([-1, 2, -4].pack("c*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::Int8ArrayBuilder.new
builder.append(-1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-uint16-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-uint16-array.rb b/c_glib/test/test-uint16-array.rb
index ad85f09..82e898e 100644
--- a/c_glib/test/test-uint16-array.rb
+++ b/c_glib/test/test-uint16-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestUInt16Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::UInt16ArrayBuilder.new
+ builder.append(1)
+ builder.append(2)
+ builder.append(4)
+ array = builder.finish
+ assert_equal([1, 2, 4].pack("S*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::UInt16ArrayBuilder.new
builder.append(1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-uint32-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-uint32-array.rb b/c_glib/test/test-uint32-array.rb
index 59e19f3..c8be06f 100644
--- a/c_glib/test/test-uint32-array.rb
+++ b/c_glib/test/test-uint32-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestUInt32Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::UInt32ArrayBuilder.new
+ builder.append(1)
+ builder.append(2)
+ builder.append(4)
+ array = builder.finish
+ assert_equal([1, 2, 4].pack("L*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::UInt32ArrayBuilder.new
builder.append(1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-uint64-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-uint64-array.rb b/c_glib/test/test-uint64-array.rb
index e0195c1..03082f3 100644
--- a/c_glib/test/test-uint64-array.rb
+++ b/c_glib/test/test-uint64-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestUInt64Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::UInt64ArrayBuilder.new
+ builder.append(1)
+ builder.append(2)
+ builder.append(4)
+ array = builder.finish
+ assert_equal([1, 2, 4].pack("Q*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::UInt64ArrayBuilder.new
builder.append(1)
http://git-wip-us.apache.org/repos/asf/arrow/blob/95f489c4/c_glib/test/test-uint8-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-uint8-array.rb b/c_glib/test/test-uint8-array.rb
index 02f3470..d7464e3 100644
--- a/c_glib/test/test-uint8-array.rb
+++ b/c_glib/test/test-uint8-array.rb
@@ -16,6 +16,15 @@
# under the License.
class TestUInt8Array < Test::Unit::TestCase
+ def test_buffer
+ builder = Arrow::UInt8ArrayBuilder.new
+ builder.append(1)
+ builder.append(2)
+ builder.append(4)
+ array = builder.finish
+ assert_equal([1, 2, 4].pack("C*"), array.buffer.data.to_s)
+ end
+
def test_value
builder = Arrow::UInt8ArrayBuilder.new
builder.append(1)