spec/elastic_apm/config/server_info_spec.rb

# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. 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.

# frozen_string_literal: true

require "spec_helper"

module ElasticAPM
  class Config
    RSpec.describe ServerInfo do
      subject { described_class.new(Config.new) }

      context 'when the request is successful' do
        context 'when the version is in the response' do
          it 'sets the version' do
            WebMock.stub_request(:get, %r{^http://localhost:8200/$}).
              to_return(body: '{"version":"7.17.4"}')
            expect(subject.version).to eq('7.17.4')
          end
        end

        context 'when the version is not in the response' do
          it 'sets the version to 0' do
            WebMock.stub_request(:get, %r{^http://localhost:8200/$}).
              to_return(body: nil)
            expect(subject.version).to eq('0')
          end
        end
      end

      context 'when the request is not successful' do
        it 'sets the version to 0' do
          WebMock.stub_request(:get, %r{^http://localhost:8200/$}).
            to_raise(StandardError)
            expect(subject.version).to eq('0')
        end
      end
    end
  end
end