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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 TestTensor < Test::Unit::TestCase
include Helper::Omittable
def setup
@raw_data = [
1, 2,
3, 4,
5, 6,
7, 8,
9, 10,
11, 12,
]
data = Arrow::Buffer.new(@raw_data.pack("c*"))
@shape = [3, 2, 2]
strides = []
names = ["a", "b", "c"]
@tensor = Arrow::Tensor.new(Arrow::Int8DataType.new,
data,
@shape,
strides,
names)
end
def test_equal
data = Arrow::Buffer.new(@raw_data.pack("c*"))
strides = []
names = ["a", "b", "c"]
other_tensor = Arrow::Tensor.new(Arrow::Int8DataType.new,
data,
@shape,
strides,
names)
assert_equal(@tensor,
other_tensor)
end
def test_value_data_type
assert_equal(Arrow::Int8DataType, @tensor.value_data_type.class)
end
def test_value_type
assert_equal(Arrow::Type::INT8, @tensor.value_type)
end
def test_buffer
assert_equal(@raw_data, @tensor.buffer.data.to_s.unpack("c*"))
end
def test_shape
require_gi_bindings(3, 3, 1)
assert_equal(@shape, @tensor.shape)
end
def test_strides
require_gi_bindings(3, 3, 1)
assert_equal([4, 2, 1], @tensor.strides)
end
def test_n_dimensions
assert_equal(@shape.size, @tensor.n_dimensions)
end
def test_dimension_name
dimension_names = @tensor.n_dimensions.times.collect do |i|
@tensor.get_dimension_name(i)
end
assert_equal(["a", "b", "c"],
dimension_names)
end
def test_size
assert_equal(@raw_data.size, @tensor.size)
end
def test_mutable?
assert do
not @tensor.mutable?
end
end
def test_contiguous?
assert do
@tensor.contiguous?
end
end
def test_row_major?
assert do
@tensor.row_major?
end
end
def test_column_major?
assert do
not @tensor.column_major?
end
end
def test_io
buffer = Arrow::ResizableBuffer.new(0)
output = Arrow::BufferOutputStream.new(buffer)
output.write_tensor(@tensor)
input = Arrow::BufferInputStream.new(buffer)
assert_equal(@tensor, input.read_tensor)
end
end
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