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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 TestBooleanStatistics < Test::Unit::TestCase
def setup
Tempfile.create(["data", ".parquet"]) do |file|
array = Arrow::BooleanArray.new([nil, false, true])
table = Arrow::Table.new("boolean" => array)
Parquet::ArrowFileWriter.open(table.schema, file.path) do |writer|
chunk_size = 1024
writer.write_table(table, chunk_size)
writer.close
end
Parquet::ArrowFileReader.open(file.path) do |reader|
@statistics =
reader.metadata.get_row_group(0).get_column_chunk(0).statistics
yield
@statistics = nil
end
GC.start # Ensure freeing @statistics that refers file.path.
end
end
def test_min
assert_equal(false, @statistics.min)
end
def test_max
assert_equal(true, @statistics.max)
end
end
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