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Contents
require 'spec_helper'
describe Macmillan::Utils::Logger::Formatter do
let(:msg) { 'testing' }
let(:prefix) { nil }
let(:target) { File.open('/dev/null', 'w+') }
subject { Macmillan::Utils::Logger::Formatter.new(prefix) }
let(:logger) do
log = Macmillan::Utils::Logger::Factory.build_logger(:logger, target: target)
log.formatter = subject
log
end
describe '#call' do
it 'is called by the logger object' do
expect(target).to receive(:write).once
expect(subject).to receive(:call).once
logger.info 'this is a test'
end
context 'when a prefix is set' do
let(:prefix) { 'WEEEE' }
it 'is put in front of the log message' do
expect(target).to receive(:write).with("#{prefix} [ INFO]: #{msg}\n").once
logger.info msg
end
end
context 'when the log message is a string' do
it 'returns the string' do
expect(target).to receive(:write).with("[ INFO]: #{msg}\n").once
logger.info msg
end
end
context 'when the log message is an exception' do
it 'returns full details of the exception' do
ex = StandardError.new('qwerty')
allow(ex).to receive(:backtrace).and_return(%w(foo bar baz quux))
expect(target).to receive(:write).with("[ INFO]: qwerty (StandardError)\nfoo\nbar\nbaz\nquux\n").once
logger.info ex
end
end
context 'when the log message is NOT a string or exception' do
it 'retuns object.inspect' do
ex = Array.new
expect(ex).to receive(:inspect).once
logger.info ex
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems