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# rubocop:todo all
# Copyright (C) 2016-2021 MongoDB Inc.
#
# Licensed 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.
require "spec_helper"
describe BigDecimal do
describe '#from_bson' do
shared_examples_for 'a BSON::BigDecimal deserializer' do
let(:decimal128) do
BSON::Decimal128.new(argument)
end
let(:deserialized_big_decimal) do
BigDecimal.from_bson(decimal128.to_bson)
end
let(:deserialized_decimal128) do
BSON::Decimal128.from_bson(decimal128.to_bson)
end
it 'deserializes Decimal128 encoded bson correctly' do
if deserialized_decimal128.to_s == "NaN"
expect(deserialized_big_decimal.nan?).to be true
else
expect(deserialized_big_decimal).to eq(deserialized_decimal128.to_d)
end
end
end
context 'when Infinity is passed' do
let(:argument) { "Infinity" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when -Infinity is passed' do
let(:argument) { "-Infinity" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when NaN is passed' do
let(:argument) { "NaN" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when -NaN is passed' do
let(:argument) { "-NaN" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when SNaN is passed' do
let(:argument) { "SNaN" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when -SNaN is passed' do
let(:argument) { "SNaN" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when -0 is passed' do
let(:argument) { "-0" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when a positive integer is passed' do
let(:argument) { "12" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when a negative integer is passed' do
let(:argument) { "-12" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when a positive float is passed' do
let(:argument) { "0.12345" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when a negative float is passed' do
let(:argument) { "-0.12345" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when a large positive integer is passed' do
let(:argument) { "1234567890123456789012345678901234" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
context 'when a large negative integer is passed' do
let(:argument) { "-1234567890123456789012345678901234" }
it_behaves_like 'a BSON::BigDecimal deserializer'
end
end
describe "#to_bson" do
shared_examples_for 'a BSON::BigDecimal serializer' do
let(:decimal128) do
BSON::Decimal128.new(BigDecimal(argument).to_s)
end
let(:decimal_128_bson) do
decimal128.to_bson
end
let(:big_decimal_bson) do
BigDecimal(argument).to_bson
end
it 'serializes BigDecimals correctly' do
expect(decimal_128_bson.to_s).to eq(big_decimal_bson.to_s)
end
end
context 'when Infinity is passed' do
let(:argument) { "Infinity" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when -Infinity is passed' do
let(:argument) { "-Infinity" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when NaN is passed' do
let(:argument) { "NaN" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when -0 is passed' do
let(:argument) { "-0" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when a positive integer is passed' do
let(:argument) { "12" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when a negative integer is passed' do
let(:argument) { "-12" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when a positive float is passed' do
let(:argument) { "0.12345" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when a negative float is passed' do
let(:argument) { "-0.12345" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when a large positive integer is passed' do
let(:argument) { "1234567890123456789012345678901234" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context 'when a large negative integer is passed' do
let(:argument) { "-1234567890123456789012345678901234" }
it_behaves_like 'a BSON::BigDecimal serializer'
end
context "when passing an out of range Decimal128" do
let(:argument) { "1E1000000" }
it "raises an error" do
expect do
BigDecimal(argument).to_bson
end.to raise_error(BSON::Error::InvalidDecimal128Range)
end
end
context "when passing a number with too much precision for Decimal128" do
let(:argument) { "1.000000000000000000000000000000000000000000000000001" }
it "raises an error" do
expect do
BigDecimal(argument).to_bson
end.to raise_error(BSON::Error::UnrepresentablePrecision)
end
end
end
describe "#from_bson/#to_bson" do
shared_examples_for 'a BSON::BigDecimal round trip' do
let(:big_decimal) do
BigDecimal(argument)
end
let(:big_decimal_bson) do
big_decimal.to_bson
end
let(:deserialized_big_decimal) do
BigDecimal.from_bson(big_decimal_bson)
end
it 'serializes BigDecimals correctly' do
if big_decimal.nan?
expect(deserialized_big_decimal.nan?).to be true
else
expect(deserialized_big_decimal).to eq(big_decimal)
end
end
end
context 'when Infinity is passed' do
let(:argument) { "Infinity" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when -Infinity is passed' do
let(:argument) { "-Infinity" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when NaN is passed' do
let(:argument) { "NaN" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when -0 is passed' do
let(:argument) { "-0" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when a positive integer is passed' do
let(:argument) { "12" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when a negative integer is passed' do
let(:argument) { "-12" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when a positive float is passed' do
let(:argument) { "0.12345" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when a negative float is passed' do
let(:argument) { "-0.12345" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when a large positive integer is passed' do
let(:argument) { "1234567890123456789012345678901234" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
context 'when a large negative integer is passed' do
let(:argument) { "-1234567890123456789012345678901234" }
it_behaves_like 'a BSON::BigDecimal round trip'
end
end
context "when the class is loaded" do
let(:registered) do
BSON::Registry.get(described_class::BSON_TYPE, 'field')
end
it "registers the type" do
expect(registered).to eq(described_class)
end
end
end
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