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# rubocop:todo all
# Copyright (C) 2009-2020 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 Regexp do
describe "#as_json" do
let(:object) do
/\W+/i
end
it "returns the binary data plus type" do
expect(object.as_json).to eq(
{ "$regex" => "\\W+", "$options" => "im" }
)
end
it_behaves_like "a JSON serializable object"
end
describe "#to_bson/#from_bson" do
let(:type) { 11.chr }
let(:obj) { /test/ }
let(:io) do
BSON::ByteBuffer.new(bson)
end
let(:regex) do
described_class.from_bson(io)
end
let(:result) do
regex.compile
end
it_behaves_like "a bson element"
context "when calling normal regexp methods on a Regexp::Raw" do
let :obj do
/\d+/
end
let(:bson) { "#{obj.source}#{BSON::NULL_BYTE}m#{BSON::NULL_BYTE}" }
it_behaves_like "a serializable bson element"
it "runs the method on the Regexp object" do
expect(regex.match('6')).not_to be_nil
end
end
context "when the regexp has no options" do
let(:obj) { /\d+/ }
# Ruby always has a BSON regex's equivalent of multiline on
# http://www.regular-expressions.info/modifiers.html
let(:bson) { "#{obj.source}#{BSON::NULL_BYTE}m#{BSON::NULL_BYTE}" }
it_behaves_like "a serializable bson element"
it "deserializes from bson" do
expect(result).to eq(obj)
end
end
context "when the regexp has options" do
context "when ignoring case" do
let(:obj) { /\W+/i }
let(:bson) { "#{obj.source}#{BSON::NULL_BYTE}im#{BSON::NULL_BYTE}" }
it_behaves_like "a serializable bson element"
it "deserializes from bson" do
expect(result).to eq(obj)
end
end
context "when matching multiline" do
let(:obj) { /\W+/m }
let(:bson) { "#{obj.source}#{BSON::NULL_BYTE}ms#{BSON::NULL_BYTE}" }
it_behaves_like "a serializable bson element"
it "deserializes from bson" do
expect(result).to eq(obj)
end
end
context "when matching extended" do
let(:obj) { /\W+/x }
let(:bson) { "#{obj.source}#{BSON::NULL_BYTE}mx#{BSON::NULL_BYTE}" }
it_behaves_like "a serializable bson element"
it "deserializes from bson" do
expect(result).to eq(obj)
end
end
context "when all options are present" do
let(:obj) { /\W+/xim }
let(:bson) { "#{obj.source}#{BSON::NULL_BYTE}imsx#{BSON::NULL_BYTE}" }
it_behaves_like "a serializable bson element"
it "deserializes from bson" do
expect(result).to eq(obj)
end
end
context "when the regexp options contains a null byte" do
let(:regexp) do
Regexp::Raw.new("pattern", "options\x00")
end
it "raises an error" do
expect do
regexp
end.to raise_error(BSON::Error::InvalidRegexpPattern, /Regexp options cannot contain a null byte/)
end
end
context "when the regexp options is an integer" do
let(:regexp) do
Regexp::Raw.new("pattern", 1)
end
it "raises an error" do
expect do
regexp
end.to raise_error(ArgumentError, /Regexp options must be a String or Symbol/)
end
end
context "when the regexp options is an invalid type" do
let(:regexp) do
Regexp::Raw.new("pattern", [2])
end
it "raises an error" do
expect do
regexp
end.to raise_error(ArgumentError, /Regexp options must be a String or Symbol/)
end
end
end
context "when the pattern contains a null byte" do
let(:regexp) do
Regexp::Raw.new("pattern\x00", "options")
end
it "raises an error" do
expect do
regexp
end.to raise_error(BSON::Error::InvalidRegexpPattern, /Regexp pattern cannot contain a null byte/)
end
end
end
end
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