test/yaml/test_yamlstore.rb

   1 require 'test/unit'
   2 require 'yaml/store'
   3
   4 class YAMLStoreTest < Test::Unit::TestCase
   5   def setup
   6     @yamlstore_file = "yamlstore.tmp.#{Process.pid}"
   7     @yamlstore = YAML::Store.new(@yamlstore_file)
   8   end
   9
  10   def teardown
  11     File.unlink(@yamlstore_file) rescue nil
  12   end
  13
  14   def test_opening_new_file_in_readonly_mode_should_result_in_empty_values
  15     @yamlstore.transaction(true) do
  16       assert_nil @yamlstore[:foo]
  17       assert_nil @yamlstore[:bar]
  18     end
  19   end
  20
  21   def test_opening_new_file_in_readwrite_mode_should_result_in_empty_values
  22     @yamlstore.transaction do
  23       assert_nil @yamlstore[:foo]
  24       assert_nil @yamlstore[:bar]
  25     end
  26   end
  27
  28   def test_data_should_be_loaded_correctly_when_in_readonly_mode
  29     @yamlstore.transaction do
  30       @yamlstore[:foo] = "bar"
  31     end
  32     @yamlstore.transaction(true) do
  33       assert_equal "bar", @yamlstore[:foo]
  34     end
  35   end
  36
  37   def test_data_should_be_loaded_correctly_when_in_readwrite_mode
  38     @yamlstore.transaction do
  39       @yamlstore[:foo] = "bar"
  40     end
  41     @yamlstore.transaction do
  42       assert_equal "bar", @yamlstore[:foo]
  43     end
  44   end
  45
  46   def test_changes_after_commit_are_discarded
  47     @yamlstore.transaction do
  48       @yamlstore[:foo] = "bar"
  49       @yamlstore.commit
  50       @yamlstore[:foo] = "baz"
  51     end
  52     @yamlstore.transaction(true) do
  53       assert_equal "bar", @yamlstore[:foo]
  54     end
  55   end
  56
  57   def test_changes_are_not_written_on_abort
  58     @yamlstore.transaction do
  59       @yamlstore[:foo] = "bar"
  60       @yamlstore.abort
  61     end
  62     @yamlstore.transaction(true) do
  63       assert_nil @yamlstore[:foo]
  64     end
  65   end
  66
  67   def test_writing_inside_readonly_transaction_raises_error
  68     assert_raise(PStore::Error) do
  69       @yamlstore.transaction(true) do
  70         @yamlstore[:foo] = "bar"
  71       end
  72     end
  73   end
  74 end