| # 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 TestGIOInputStream < Test::Unit::TestCase |
| include Helper::Buildable |
| |
| def test_reader_backend |
| data = [true] |
| field = Arrow::Field.new("enabled", Arrow::BooleanDataType.new) |
| schema = Arrow::Schema.new([field]) |
| |
| tempfile = Tempfile.open("arrow-gio-input-stream") |
| output = Arrow::FileOutputStream.new(tempfile.path, false) |
| begin |
| file_writer = Arrow::RecordBatchFileWriter.new(output, schema) |
| begin |
| record_batch = Arrow::RecordBatch.new(schema, |
| data.size, |
| [build_boolean_array(data)]) |
| file_writer.write_record_batch(record_batch) |
| ensure |
| file_writer.close |
| end |
| ensure |
| output.close |
| end |
| |
| file = Gio::File.new_for_path(tempfile.path) |
| input_stream = file.read |
| input = Arrow::GIOInputStream.new(input_stream) |
| begin |
| file_reader = Arrow::RecordBatchFileReader.new(input) |
| assert_equal([field.name], |
| file_reader.schema.fields.collect(&:name)) |
| assert_equal(Arrow::RecordBatch.new(schema, |
| data.size, |
| [build_boolean_array(data)]), |
| file_reader.read_record_batch(0)) |
| ensure |
| input.close |
| end |
| end |
| |
| def test_getter |
| input_stream = Gio::MemoryInputStream.new("Hello") |
| input = Arrow::GIOInputStream.new(input_stream) |
| assert_equal(input_stream, input.raw) |
| end |
| |
| def test_peek |
| input_stream = Gio::MemoryInputStream.new("Hello World") |
| buffered_input_stream = Gio::BufferedInputStream.new(input_stream) |
| input = Arrow::GIOInputStream.new(buffered_input_stream) |
| assert_equal("He", input.peek(2).to_s) |
| assert_equal("Hel", input.read_bytes(3).to_s) |
| assert_equal("lo ", input.peek(3).to_s) |
| end |
| end |