ARROW-15936 [Ruby] Add test for Arrow::DictionaryArray#raw_records

ruby/red-arrow/test/raw-records/test-dictionary-array.rb

@@ -0,0 +1,311 @@
+# 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.
+
+module RawRecordsDictionaryArrayTests
+  def build_record_batch(array)
+    dictionary = array.dictionary_encode
+    schema = Arrow::Schema.new(column: dictionary.value_data_type)
+    Arrow::RecordBatch.new(schema, array.length, [dictionary])
+  end
+
+  def test_null
+    records = [
+      [nil],
+      [nil],
+      [nil],
+      [nil],
+    ]
+    target = build(Arrow::NullArray.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_boolean
+    records = [
+      [true],
+      [nil],
+      [false],
+    ]
+    target = build(Arrow::BooleanArray.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_int8
+    records = [
+      [-(2 ** 7)],
+      [nil],
+      [(2 ** 7) - 1],
+    ]
+    target = build(Arrow::Int8Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_uint8
+    records = [
+      [0],
+      [nil],
+      [(2 ** 8) - 1],
+    ]
+    target = build(Arrow::UInt8Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_int16
+    records = [
+      [-(2 ** 15)],
+      [nil],
+      [(2 ** 15) - 1],
+    ]
+    target = build(Arrow::Int16Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_uint16
+    records = [
+      [0],
+      [nil],
+      [(2 ** 16) - 1],
+    ]
+    target = build(Arrow::UInt16Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_int32
+    records = [
+      [-(2 ** 31)],
+      [nil],
+      [(2 ** 31) - 1],
+    ]
+    target = build(Arrow::Int32Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_uint32
+    records = [
+      [0],
+      [nil],
+      [(2 ** 32) - 1],
+    ]
+    target = build(Arrow::UInt32Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_int64
+    records = [
+      [-(2 ** 63)],
+      [nil],
+      [(2 ** 63) - 1],
+    ]
+    target = build(Arrow::Int64Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_uint64
+    records = [
+      [0],
+      [nil],
+      [(2 ** 64) - 1],
+    ]
+    target = build(Arrow::UInt64Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_float
+    records = [
+      [-1.0],
+      [nil],
+      [1.0],
+    ]
+    target = build(Arrow::FloatArray.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_double
+    records = [
+      [-1.0],
+      [nil],
+      [1.0],
+    ]
+    target = build(Arrow::DoubleArray.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_binary
+    records = [
+      ["\x00".b],
+      [nil],
+      ["\xff".b],
+    ]
+    target = build(Arrow::BinaryArray.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_string
+    records = [
+      ["Ruby"],
+      [nil],
+      ["\u3042"], # U+3042 HIRAGANA LETTER A
+    ]
+    target = build(Arrow::StringArray.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_date32
+    records = [
+      [Date.new(1960, 1, 1)],
+      [nil],
+      [Date.new(2017, 8, 23)],
+    ]
+    target = build(Arrow::Date32Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_date64
+    records = [
+      [DateTime.new(1960, 1, 1, 2, 9, 30)],
+      [nil],
+      [DateTime.new(2017, 8, 23, 14, 57, 2)],
+    ]
+    target = build(Arrow::Date64Array.new(records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_timestamp_second
+    records = [
+      [Time.parse("1960-01-01T02:09:30Z")],
+      [nil],
+      [Time.parse("2017-08-23T14:57:02Z")],
+    ]
+    target = build(Arrow::TimestampArray.new(:second, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_timestamp_milli
+    records = [
+      [Time.parse("1960-01-01T02:09:30.123Z")],
+      [nil],
+      [Time.parse("2017-08-23T14:57:02.987Z")],
+    ]
+    target = build(Arrow::TimestampArray.new(:milli, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_timestamp_micro
+    records = [
+      [Time.parse("1960-01-01T02:09:30.123456Z")],
+      [nil],
+      [Time.parse("2017-08-23T14:57:02.987654Z")],
+    ]
+    target = build(Arrow::TimestampArray.new(:micro, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_timestamp_nano
+    records = [
+      [Time.parse("1960-01-01T02:09:30.123456789Z")],
+      [nil],
+      [Time.parse("2017-08-23T14:57:02.987654321Z")],
+    ]
+    target = build(Arrow::TimestampArray.new(:nano, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_time32_second
+    unit = Arrow::TimeUnit::SECOND
+    records = [
+      [Arrow::Time.new(unit, 60 * 10)], # 00:10:00
+      [nil],
+      [Arrow::Time.new(unit, 60 * 60 * 2 + 9)], # 02:00:09
+    ]
+    target = build(Arrow::Time32Array.new(unit, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_time32_milli
+    unit = Arrow::TimeUnit::MILLI
+    records = [
+      [Arrow::Time.new(unit, (60 * 10) * 1000 + 123)], # 00:10:00.123
+      [nil],
+      [Arrow::Time.new(unit, (60 * 60 * 2 + 9) * 1000 + 987)], # 02:00:09.987
+    ]
+    target = build(Arrow::Time32Array.new(unit, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_time64_micro
+    unit = Arrow::TimeUnit::MICRO
+    records = [
+      # 00:10:00.123456
+      [Arrow::Time.new(unit, (60 * 10) * 1_000_000 + 123_456)],
+      [nil],
+      # 02:00:09.987654
+      [Arrow::Time.new(unit, (60 * 60 * 2 + 9) * 1_000_000 + 987_654)],
+    ]
+    target = build(Arrow::Time64Array.new(unit, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_time64_nano
+    unit = Arrow::TimeUnit::NANO
+    records = [
+      # 00:10:00.123456789
+      [Arrow::Time.new(unit, (60 * 10) * 1_000_000_000 + 123_456_789)],
+      [nil],
+      # 02:00:09.987654321
+      [Arrow::Time.new(unit, (60 * 60 * 2 + 9) * 1_000_000_000 + 987_654_321)],
+    ]
+    target = build(Arrow::Time64Array.new(unit, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_decimal128
+    records = [
+      [BigDecimal("92.92")],
+      [nil],
+      [BigDecimal("29.29")],
+    ]
+    data_type = Arrow::Decimal128DataType.new(8, 2)
+    target = build(Arrow::Decimal128Array.new(data_type, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+
+  def test_decimal256
+    records = [
+      [BigDecimal("92.92")],
+      [nil],
+      [BigDecimal("29.29")],
+    ]
+    data_type = Arrow::Decimal256DataType.new(38, 2)
+    target = build(Arrow::Decimal256Array.new(data_type, records.collect(&:first)))
+    assert_equal(records, target.raw_records)
+  end
+end
+
+class RawRecordsRecordBatchDictionaryArraysTest < Test::Unit::TestCase
+  include RawRecordsDictionaryArrayTests
+
+  def build(array)
+    build_record_batch(array)
+  end
+end
+
+class RawRecordsTableDictionaryArraysTest < Test::Unit::TestCase
+  include RawRecordsDictionaryArrayTests
+
+  def build(array)
+    build_record_batch(array).to_table
+  end
+end