169 lines
2.9 KiB
Ruby
Executable file
169 lines
2.9 KiB
Ruby
Executable file
#!/usr/local/bin/ruby -w
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#
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# Copyright(c) 2003 Anders Bengtsson
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#
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# PersistenceTest is based on the unit tests from Prevayler,
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# Copyright(c) 2001-2003 Klaus Wuestefeld.
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#
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$LOAD_PATH.unshift("lib")
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require 'madeleine'
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require 'test/unit'
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class AddingSystem
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attr_reader :total
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def initialize
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@total = 0
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end
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def add(value)
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@total += value
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@total
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end
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end
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class Addition
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attr_reader :value
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def initialize(value)
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@value = value
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end
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def execute(system)
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system.add(@value)
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end
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end
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class PersistenceTest < Test::Unit::TestCase
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def setup
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@madeleine = nil
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end
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def teardown
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delete_prevalence_files(prevalence_base)
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Dir.delete(prevalence_base)
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end
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def verify(expected_total)
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assert_equal(expected_total, prevalence_system().total(), "Total")
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end
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def prevalence_system
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@madeleine.system
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end
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def prevalence_base
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"PrevalenceBase"
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end
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def clear_prevalence_base
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@madeleine.close unless @madeleine.nil?
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delete_prevalence_files(prevalence_base())
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end
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def delete_prevalence_files(directory_name)
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return unless File.exist?(directory_name)
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Dir.foreach(directory_name) {|file_name|
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next if file_name == '.'
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next if file_name == '..'
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file_name.untaint
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assert(File.delete(directory_name + File::SEPARATOR + file_name) == 1,
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"Unable to delete #{file_name}")
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}
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end
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def crash_recover
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@madeleine.close unless @madeleine.nil?
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@madeleine = create_madeleine()
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end
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def create_madeleine
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SnapshotMadeleine.new(prevalence_base()) { AddingSystem.new }
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end
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def snapshot
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@madeleine.take_snapshot
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end
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def add(value, expected_total)
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total = @madeleine.execute_command(Addition.new(value))
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assert_equal(expected_total, total, "Total")
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end
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def verify_snapshots(expected_count)
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count = 0
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Dir.foreach(prevalence_base) {|name|
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if name =~ /\.snapshot$/
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count += 1
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end
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}
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assert_equal(expected_count, count, "snapshots")
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end
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def test_main
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clear_prevalence_base
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# There is nothing to recover at first.
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# A new system will be created.
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crash_recover
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crash_recover
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add(40,40)
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add(30,70)
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verify(70)
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crash_recover
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verify(70)
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add(20,90)
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add(15,105)
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verify_snapshots(0)
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snapshot
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verify_snapshots(1)
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snapshot
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verify_snapshots(2)
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verify(105)
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crash_recover
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snapshot
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add(10,115)
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snapshot
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add(5,120)
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add(4,124)
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verify(124)
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crash_recover
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add(3,127)
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verify(127)
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verify_snapshots(4)
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clear_prevalence_base
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snapshot
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crash_recover
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add(10,137)
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add(2,139)
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crash_recover
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verify(139)
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end
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def test_main_in_safe_level_one
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thread = Thread.new {
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$SAFE = 1
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test_main
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}
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thread.join
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end
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end
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def add_persistence_tests(suite)
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suite << PersistenceTest.suite
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end
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