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# frozen_string_literal: true
require 'test/unit'
require 'pstore'
require 'tmpdir'
class PStoreTest < Test::Unit::TestCase
def setup
@pstore_file = File.join(Dir.tmpdir, "pstore.tmp.#{Process.pid}")
@pstore = PStore.new(@pstore_file)
end
def teardown
File.unlink(@pstore_file) rescue nil
end
def test_opening_new_file_in_readonly_mode_should_result_in_empty_values
@pstore.transaction(true) do
assert_nil @pstore[:foo]
assert_nil @pstore[:bar]
end
end
def test_opening_new_file_in_readwrite_mode_should_result_in_empty_values
@pstore.transaction do
assert_nil @pstore[:foo]
assert_nil @pstore[:bar]
end
end
def test_data_should_be_loaded_correctly_when_in_readonly_mode
@pstore.transaction do
@pstore[:foo] = "bar"
end
@pstore.transaction(true) do
assert_equal "bar", @pstore[:foo]
end
end
def test_data_should_be_loaded_correctly_when_in_readwrite_mode
@pstore.transaction do
@pstore[:foo] = "bar"
end
@pstore.transaction do
assert_equal "bar", @pstore[:foo]
end
end
def test_changes_after_commit_are_discarded
@pstore.transaction do
@pstore[:foo] = "bar"
@pstore.commit
@pstore[:foo] = "baz"
end
@pstore.transaction(true) do
assert_equal "bar", @pstore[:foo]
end
end
def test_changes_are_not_written_on_abort
@pstore.transaction do
@pstore[:foo] = "bar"
@pstore.abort
end
@pstore.transaction(true) do
assert_nil @pstore[:foo]
end
end
def test_writing_inside_readonly_transaction_raises_error
assert_raise(PStore::Error) do
@pstore.transaction(true) do
@pstore[:foo] = "bar"
end
end
end
def test_thread_safe
q1 = Queue.new
assert_raise(PStore::Error) do
th = Thread.new do
@pstore.transaction do
@pstore[:foo] = "bar"
q1.push true
sleep
end
end
begin
q1.pop
@pstore.transaction {}
ensure
th.kill
th.join
end
end
q2 = Queue.new
begin
pstore = PStore.new(second_file, true)
cur = Thread.current
th = Thread.new do
pstore.transaction do
pstore[:foo] = "bar"
q1.push true
q2.pop
# wait for cur to enter a transaction
sleep 0.1 until cur.stop?
end
end
begin
q1.pop
q2.push true
assert_equal("bar", pstore.transaction { pstore[:foo] })
ensure
th.join
end
end
ensure
File.unlink(second_file) rescue nil
end
def test_nested_transaction_raises_error
assert_raise(PStore::Error) do
@pstore.transaction { @pstore.transaction { } }
end
pstore = PStore.new(second_file, true)
assert_raise(PStore::Error) do
pstore.transaction { pstore.transaction { } }
end
ensure
File.unlink(second_file) rescue nil
end
# Test that PStore's file operations do not blow up when default encodings are set
def test_pstore_files_are_accessed_as_binary_files
bug5311 = '[ruby-core:39503]'
n = 128
assert_in_out_err(["-Eutf-8:utf-8", "-rpstore", "-", @pstore_file], <<-SRC, [bug5311], [], bug5311, timeout: 30)
@pstore = PStore.new(ARGV[0])
(1..#{n}).each do |i|
@pstore.transaction {@pstore["Key\#{i}"] = "value \#{i}"}
end
@pstore.transaction {@pstore["Bug5311"] = '#{bug5311}'}
puts @pstore.transaction {@pstore["Bug5311"]}
SRC
assert_equal(bug5311, @pstore.transaction {@pstore["Bug5311"]}, bug5311)
end
def second_file
File.join(Dir.tmpdir, "pstore.tmp2.#{Process.pid}")
end
end
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