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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 TestORCFileReader < Test::Unit::TestCase
include Helper::Buildable
include Helper::Omittable
include Helper::Fixture
def setup
omit("Require Apache Arrow ORC") unless Arrow.const_defined?(:ORCFileReader)
path = fixture_path("TestOrcFile.test1.orc")
input = Arrow::MemoryMappedInputStream.new(path)
@reader = Arrow::ORCFileReader.new(input)
end
def test_read_type
assert_equal(<<-SCHEMA.chomp, @reader.read_type.to_s)
boolean1: bool
byte1: int8
short1: int16
int1: int32
long1: int64
float1: float
double1: double
bytes1: binary
string1: string
middle: struct<list: list<item: struct<int1: int32, string1: string>>>
list: list<item: struct<int1: int32, string1: string>>
map: map<string, struct<int1: int32, string1: string>>
SCHEMA
end
def test_field_indices
require_gi_bindings(3, 2, 6)
assert_nil(@reader.field_indices)
@reader.field_indices = [1, 3]
assert_equal([1, 3], @reader.field_indices)
end
def item_fields
[
Arrow::Field.new("int1", Arrow::Int32DataType.new),
Arrow::Field.new("string1", Arrow::StringDataType.new),
]
end
def item_data_type
Arrow::StructDataType.new(item_fields)
end
def build_items_array(items_array)
build_list_array(item_data_type, items_array, field_name: "item")
end
def items_data_type
Arrow::ListDataType.new(Arrow::Field.new("item", item_data_type))
end
def middle_fields
[
Arrow::Field.new("list", items_data_type),
]
end
def build_middle_array(middles)
build_struct_array(middle_fields, middles)
end
def middle_array
build_middle_array([
{
"list" => [
{
"int1" => 1,
"string1" => "bye",
},
{
"int1" => 2,
"string1" => "sigh",
},
],
},
{
"list" => [
{
"int1" => 1,
"string1" => "bye",
},
{
"int1" => 2,
"string1" => "sigh",
},
],
},
])
end
def list_array
build_items_array([
[
{
"int1" => 3,
"string1" => "good",
},
{
"int1" => 4,
"string1" => "bad",
},
],
[
{
"int1" => 100000000,
"string1" => "cat",
},
{
"int1" => -100000,
"string1" => "in",
},
{
"int1" => 1234,
"string1" => "hat",
},
]
])
end
def map_array
build_map_array(Arrow::StringDataType.new,
item_data_type,
[
{},
{
"chani" => {
"int1" => 5,
"string1" => "chani",
},
"mauddib" => {
"int1" => 1,
"string1" => "mauddib",
},
},
])
end
def all_columns
{
"boolean1" => build_boolean_array([false, true]),
"byte1" => build_int8_array([1, 100]),
"short1" => build_int16_array([1024, 2048]),
"int1" => build_int32_array([65536, 65536]),
"long1" => build_int64_array([
9223372036854775807,
9223372036854775807,
]),
"float1" => build_float_array([1.0, 2.0]),
"double1" => build_double_array([-15.0, -5.0]),
"bytes1" => build_binary_array(["\x00\x01\x02\x03\x04", ""]),
"string1" => build_string_array(["hi", "bye"]),
"middle" => middle_array,
"list" => list_array,
"map" => map_array,
}
end
sub_test_case("#read_stripes") do
test("all") do
assert_equal(build_table(all_columns),
@reader.read_stripes)
end
test("select fields") do
require_gi_bindings(3, 2, 6)
@reader.field_indices = [1, 3]
assert_equal(build_table("byte1" => build_int8_array([1, 100]),
"int1" => build_int32_array([65536, 65536])),
@reader.read_stripes)
end
end
sub_test_case("#read_stripe") do
test("all") do
assert_equal(build_record_batch(all_columns),
@reader.read_stripe(0))
end
test("select fields") do
require_gi_bindings(3, 2, 6)
@reader.field_indices = [1, 3]
assert_equal(build_record_batch("byte1" => build_int8_array([1, 100]),
"int1" => build_int32_array([65536, 65536])),
@reader.read_stripe(0))
end
end
def test_n_stripes
assert_equal(1, @reader.n_stripes)
end
def test_n_rows
assert_equal(2, @reader.n_rows)
end
end
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