JezK
Edit File: tc_speed.rb
#!/usr/local/bin/ruby -w # tc_speed.rb # # Created by James Edward Gray II on 2005-11-14. # Copyright 2005 Gray Productions. All rights reserved. require "test/unit" require "timeout" require "faster_csv" require "csv" class TestFasterCSVSpeed < Test::Unit::TestCase PATH = File.join(File.dirname(__FILE__), "test_data.csv") BIG_DATA = "123456789\n" * 1024 def test_that_we_are_doing_the_same_work FasterCSV.open(PATH) do |csv| CSV.foreach(PATH) do |row| assert_equal(row, csv.shift) end end end def test_speed_vs_csv csv_time = Time.now CSV.foreach(PATH) do |row| # do nothing, we're just timing a read... end csv_time = Time.now - csv_time faster_csv_time = Time.now FasterCSV.foreach(PATH) do |row| # do nothing, we're just timing a read... end faster_csv_time = Time.now - faster_csv_time assert(faster_csv_time < csv_time / 3) end def test_the_parse_fails_fast_when_it_can_for_unquoted_fields assert_parse_errors_out('valid,fields,bad start"' + BIG_DATA) end def test_the_parse_fails_fast_when_it_can_for_unescaped_quotes assert_parse_errors_out('valid,fields,"bad start"unescaped' + BIG_DATA) end def test_field_size_limit_controls_lookahead assert_parse_errors_out( 'valid,fields,"' + BIG_DATA + '"', :field_size_limit => 2048 ) end private def assert_parse_errors_out(*args) assert_raise(FasterCSV::MalformedCSVError) do Timeout.timeout(0.2) do FasterCSV.parse(*args) fail("Parse didn't error out") end end end end