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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 RollingWindowTest < Test::Unit::TestCase
include Helper::Fixture
def setup
raw_table = {
:number => Arrow::Int32Array.new([1, -2, nil, 4, 6, 3]),
}
@table = Arrow::Table.new(raw_table)
end
test("#lag") do
assert_equal(<<-ARRAY.chomp, @table.window.lag(:number).to_s)
[
null,
-3,
null,
null,
2,
-3
]
ARRAY
end
end
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