activesupport/test/tagged_logging_test.rb


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require 'abstract_unit'
require 'active_support/core_ext/logger'
require 'active_support/tagged_logging'

class TaggedLoggingTest < ActiveSupport::TestCase
  setup do
    @output = StringIO.new
    @logger = ActiveSupport::TaggedLogging.new(Logger.new(@output))
  end

  test "tagged once" do
    @logger.tagged("BCX") { @logger.info "Funky time" }
    assert_equal "[BCX] Funky time\n", @output.string
  end
  
  test "tagged twice" do
    @logger.tagged("BCX") { @logger.tagged("Jason") { @logger.info "Funky time" } }
    assert_equal "[BCX] [Jason] Funky time\n", @output.string
  end

  test "tagged thrice at once" do
    @logger.tagged("BCX", "Jason", "New") { @logger.info "Funky time" }
    assert_equal "[BCX] [Jason] [New] Funky time\n", @output.string
  end

  test "mixed levels of tagging" do
    @logger.tagged("BCX") do
      @logger.tagged("Jason") { @logger.info "Funky time" }
      @logger.info "Junky time!"
    end

    assert_equal "[BCX] [Jason] Funky time\n[BCX] Junky time!\n", @output.string
  end
end