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# 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 TestDatasetFileWriter < Test::Unit::TestCase
include Helper::Buildable
include Helper::Readable
def setup
omit("Arrow Dataset is required") unless defined?(ArrowDataset)
Dir.mktmpdir do |tmpdir|
@dir = tmpdir
@format = ArrowDataset::IPCFileFormat.new
@file_system = Arrow::LocalFileSystem.new
@path = File.join(@dir, "data.arrow")
@output = @file_system.open_output_stream(@path)
@schema = build_schema(visible: Arrow::BooleanDataType.new,
point: Arrow::UInt8DataType.new)
@writer = @format.open_writer(@output,
@file_system,
@path,
@schema,
@format.default_write_options)
yield
end
end
def test_write_record_batch
record_batch = build_record_batch(
visible: build_boolean_array([true, false, true]),
point: build_uint8_array([1, 2, 3]))
@writer.write_record_batch(record_batch)
@writer.finish
@output.close
read_table(@path) do |written_table|
assert_equal(Arrow::Table.new(record_batch.schema,
[record_batch]),
written_table)
end
end
def test_write_record_batch_reader
table = build_table(visible: build_boolean_array([true, false, true]),
point: build_uint8_array([1, 2, 3]))
@writer.write_record_batch_reader(Arrow::TableBatchReader.new(table))
@writer.finish
@output.close
read_table(@path) do |written_table|
assert_equal(table, written_table)
end
end
end
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