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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 TestDenseUnionArrayBuilder < Test::Unit::TestCase
include Helper::Buildable
def setup
@builder = Arrow::DenseUnionArrayBuilder.new
end
def create_dense_union_array(type_ids,
value_offsets,
fields,
data_type: nil)
args = [
build_int8_array(type_ids),
build_int32_array(value_offsets),
fields,
]
args.unshift(data_type) if data_type
Arrow::DenseUnionArray.new(*args)
end
def test_new_data_type
number_field_data_type = Arrow::Int32DataType.new
text_field_data_type = Arrow::StringDataType.new
number_field = Arrow::Field.new("number", number_field_data_type)
text_field = Arrow::Field.new("text", text_field_data_type)
fields = [
number_field,
text_field,
]
number_field_type_id = 2
text_field_type_id = 9
type_ids = [
number_field_type_id,
text_field_type_id,
]
data_type = Arrow::DenseUnionDataType.new(fields, type_ids)
builder = Arrow::DenseUnionArrayBuilder.new(data_type)
number_builder = builder.get_child(0)
text_builder = builder.get_child(1)
expected_type_ids = []
expected_value_offsets = []
expected_number_values = []
expected_text_values = []
builder.append_value(2)
number_builder.append_value(1)
# expected
expected_type_ids << number_field_type_id
expected_value_offsets << expected_number_values.size
expected_number_values << 1
builder.append_value(text_field_type_id)
text_builder.append_value("a")
# expected
expected_type_ids << text_field_type_id
expected_value_offsets << expected_text_values.size
expected_text_values << "a"
expected_fields = [
build_int32_array(expected_number_values),
build_string_array(expected_text_values),
]
assert_equal(create_dense_union_array(expected_type_ids,
expected_value_offsets,
expected_fields,
data_type: data_type),
builder.finish)
end
def test_append_null
int16_child_builder = Arrow::Int16ArrayBuilder.new
int16_child_type_id = @builder.append_child(int16_child_builder, "0")
type_ids = []
value_offsets = []
int16_child_values = []
@builder.append_null
# expected
type_ids << int16_child_type_id
value_offsets << int16_child_values.size
int16_child_values << nil
fields = [
build_int16_array(int16_child_values),
]
assert_equal(create_dense_union_array(type_ids, value_offsets, fields),
@builder.finish)
end
def test_append_nulls
int16_child_builder = Arrow::Int16ArrayBuilder.new
int16_child_type_id = @builder.append_child(int16_child_builder, "0")
type_ids = []
value_offsets = []
int16_child_values = []
@builder.append_nulls(3)
# expected
3.times do
type_ids << int16_child_type_id
value_offsets << int16_child_values.size
int16_child_values << nil
end
fields = [
build_int16_array(int16_child_values),
]
assert_equal(create_dense_union_array(type_ids, value_offsets, fields),
@builder.finish)
end
def test_append_empty_value
int16_child_builder = Arrow::Int16ArrayBuilder.new
int16_child_type_id = @builder.append_child(int16_child_builder, "0")
type_ids = []
value_offsets = []
int16_child_values = []
@builder.append_empty_value
# expected
type_ids << int16_child_type_id
value_offsets << int16_child_values.size
int16_child_values << 0
fields = [
build_int16_array(int16_child_values),
]
assert_equal(create_dense_union_array(type_ids, value_offsets, fields),
@builder.finish)
end
def test_append_empty_values
int16_child_builder = Arrow::Int16ArrayBuilder.new
int16_child_type_id = @builder.append_child(int16_child_builder, "0")
type_ids = []
value_offsets = []
int16_child_values = []
@builder.append_empty_values(3)
# expected
3.times do
type_ids << int16_child_type_id
value_offsets << int16_child_values.size
int16_child_values << 0
end
fields = [
build_int16_array(int16_child_values),
]
assert_equal(create_dense_union_array(type_ids, value_offsets, fields),
@builder.finish)
end
def test_append_value
int16_child_builder = Arrow::Int16ArrayBuilder.new
int16_child_type_id = @builder.append_child(int16_child_builder, "0")
string_child_builder = Arrow::StringArrayBuilder.new
string_child_type_id = @builder.append_child(string_child_builder, "1")
type_ids = []
value_offsets = []
int16_child_values = []
string_child_values = []
@builder.append_value(int16_child_type_id)
int16_child_builder.append_value(1)
# expected
type_ids << int16_child_type_id
value_offsets << int16_child_values.size
int16_child_values << 1
@builder.append_value(string_child_type_id)
string_child_builder.append_value("a")
# expected
type_ids << string_child_type_id
value_offsets << string_child_values.size
string_child_values << "a"
@builder.append_value(int16_child_type_id)
int16_child_builder.append_null
# expected
type_ids << int16_child_type_id
value_offsets << int16_child_values.size
int16_child_values << nil
@builder.append_value(string_child_type_id)
string_child_builder.append_value("b")
# expected
type_ids << string_child_type_id
value_offsets << string_child_values.size
string_child_values << "b"
@builder.append_value(string_child_type_id)
string_child_builder.append_value("c")
# expected
type_ids << string_child_type_id
value_offsets << string_child_values.size
string_child_values << "c"
fields = [
build_int16_array(int16_child_values),
build_string_array(string_child_values),
]
assert_equal(create_dense_union_array(type_ids, value_offsets, fields),
@builder.finish)
end
end
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