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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 TestRecordBatchReader <Test::Unit::TestCase
include Helper::Buildable
include Helper::Omittable
def setup
fields = [
Arrow::Field.new("visible", Arrow::BooleanDataType.new),
Arrow::Field.new("point", Arrow::Int32DataType.new),
]
@schema = Arrow::Schema.new(fields)
@record_batches = [
[
build_boolean_array([true, false, true]),
build_int32_array([1, 2, 3]),
],
[
build_boolean_array([false, true, false, true]),
build_int32_array([-1, -2, -3, -4]),
]
].collect do |columns|
Arrow::RecordBatch.new(@schema, columns[0].length, columns)
end
@reader = Arrow::RecordBatchReader.new(@record_batches, @schema)
end
def test_export
require_gi_bindings(3, 4, 8)
c_abi_array_stream = @reader.export
assert_equal(Arrow::Table.new(@schema, @record_batches),
Arrow::RecordBatchReader.import(c_abi_array_stream).read_all)
end
def test_schema
assert_equal(@schema, @reader.schema)
end
def test_read_next
assert_equal(@record_batches[0], @reader.read_next)
assert_equal(@record_batches[1], @reader.read_next)
assert_nil(@reader.read_next)
end
def test_read_all
assert_equal(Arrow::Table.new(@schema, @record_batches),
@reader.read_all)
end
end
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