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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 ColumnTest < Test::Unit::TestCase
def setup
table = Arrow::Table.new("visible" => [true, nil, false])
@column = table.visible
end
test("#to_arrow") do
assert_equal(@column.data, @column.to_arrow)
end
test("#to_arrow_array") do
assert_equal(@column.data.chunks[0], @column.to_arrow_chunked_array)
end
test("#to_arrow_chunked_array") do
assert_equal(@column.data, @column.to_arrow_chunked_array)
end
test("#name") do
assert_equal("visible", @column.name)
end
test("#data_type") do
assert_equal(Arrow::BooleanDataType.new, @column.data_type)
end
test("#null?") do
assert do
@column.null?(1)
end
end
test("#valid?") do
assert do
@column.valid?(0)
end
end
test("#each") do
assert_equal([true, nil, false], @column.each.to_a)
end
test("#reverse_each") do
assert_equal([false, nil, true], @column.reverse_each.to_a)
end
test("#size") do
assert_equal(3, @column.size)
end
test("#length") do
assert_equal(3, @column.length)
end
test("#n_rows") do
assert_equal(3, @column.n_rows)
end
test("#n_nulls") do
assert_equal(1, @column.n_nulls)
end
sub_test_case("#==") do
test("same value") do
table1 = Arrow::Table.new("visible" => [true, false])
table2 = Arrow::Table.new("visible" => [true, false])
assert do
table1.visible == table2.visible
end
end
test("different name") do
table1 = Arrow::Table.new("visible" => [true, false])
table2 = Arrow::Table.new("invisible" => [true, false])
assert do
not table1.visible == table2.invisible
end
end
test("different value") do
table1 = Arrow::Table.new("visible" => [true, false])
table2 = Arrow::Table.new("visible" => [true, true])
assert do
not table1.visible == table2.visible
end
end
test("not Arrow::Column") do
table = Arrow::Table.new("visible" => [true, false])
assert do
not table.visible == 29
end
end
end
test("#count") do
table = Arrow::Table.new("revenue" => [1, nil, 3])
assert_equal(2, table["revenue"].count)
end
test("#min") do
table = Arrow::Table.new("revenue" => [1, 2, 3])
assert_equal(1, table["revenue"].min)
end
test("#max") do
table = Arrow::Table.new("revenue" => [1, 2, 3])
assert_equal(3, table["revenue"].max)
end
test("#sum") do
table = Arrow::Table.new("revenue" => [1, 2, 3])
assert_equal(6, table["revenue"].sum)
end
test("#uniq") do
table = Arrow::Table.new("revenue" => [1, 2, 2])
assert_equal([1, 2], table["revenue"].uniq)
end
test("#cast") do
table = Arrow::Table.new("revenue" => [1, nil, 3])
assert_equal(Arrow::ChunkedArray.new([["1", nil, "3"]]),
table["revenue"].cast(:string))
end
end
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