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# -*- coding: UTF-8 -*-
require 'test/unit'
require 'yaml/dbm'
Psych::DBM = YAML::DBM unless defined?(Psych::DBM)
module Psych
class YAMLDBMTest < Test::Unit::TestCase
def setup
@engine, YAML::ENGINE.yamler = YAML::ENGINE.yamler, 'psych'
@yamldbm_file = "yamldbm.tmp.#{Process.pid}"
@yamldbm = YAML::DBM.new(@yamldbm_file)
end
def teardown
YAML::ENGINE.yamler = @engine
File.unlink(@yamldbm_file + '.db') rescue nil
end
def test_store
@yamldbm.store('a','b')
@yamldbm.store('c','d')
assert_equal 'b', @yamldbm['a']
assert_equal 'd', @yamldbm['c']
assert_nil @yamldbm['e']
end
def test_store_using_carret
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal 'b', @yamldbm['a']
assert_equal 'd', @yamldbm['c']
assert_nil @yamldbm['e']
end
def test_to_a
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal([['a','b'],['c','d']], @yamldbm.to_a)
end
def test_to_hash
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal({'a'=>'b','c'=>'d'}, @yamldbm.to_hash)
end
def test_has_value?
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal true, @yamldbm.has_value?('b')
assert_equal true, @yamldbm.has_value?('d')
assert_equal false, @yamldbm.has_value?('f')
end
# Note:
# YAML::DBM#index makes warning from internal of ::DBM#index.
# It says 'DBM#index is deprecated; use DBM#key', but DBM#key
# behaves not same as DBM#index.
#
# def test_index
# @yamldbm['a'] = 'b'
# @yamldbm['c'] = 'd'
# assert_equal 'a', @yamldbm.index('b')
# assert_equal 'c', @yamldbm.index('d')
# assert_nil @yamldbm.index('f')
# end
def test_key
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal 'a', @yamldbm.key('b')
assert_equal 'c', @yamldbm.key('d')
assert_nil @yamldbm.key('f')
end
def test_fetch
assert_equal('bar', @yamldbm['foo']='bar')
assert_equal('bar', @yamldbm.fetch('foo'))
assert_nil @yamldbm.fetch('bar')
assert_equal('baz', @yamldbm.fetch('bar', 'baz'))
assert_equal('foobar', @yamldbm.fetch('bar') {|key| 'foo' + key })
end
def test_shift
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal(['a','b'], @yamldbm.shift)
assert_equal(['c','d'], @yamldbm.shift)
assert_nil @yamldbm.shift
end
def test_invert
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal({'b'=>'a','d'=>'c'}, @yamldbm.invert)
end
def test_update
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
@yamldbm.update({'c'=>'d','e'=>'f'})
assert_equal 'b', @yamldbm['a']
assert_equal 'd', @yamldbm['c']
assert_equal 'f', @yamldbm['e']
end
def test_replace
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
@yamldbm.replace({'c'=>'d','e'=>'f'})
assert_nil @yamldbm['a']
assert_equal 'd', @yamldbm['c']
assert_equal 'f', @yamldbm['e']
end
def test_delete
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
assert_equal 'b', @yamldbm.delete('a')
assert_nil @yamldbm['a']
assert_equal 'd', @yamldbm['c']
assert_nil @yamldbm.delete('e')
end
def test_delete_if
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
@yamldbm['e'] = 'f'
@yamldbm.delete_if {|k,v| k == 'a'}
assert_nil @yamldbm['a']
assert_equal 'd', @yamldbm['c']
assert_equal 'f', @yamldbm['e']
@yamldbm.delete_if {|k,v| v == 'd'}
assert_nil @yamldbm['c']
assert_equal 'f', @yamldbm['e']
@yamldbm.delete_if {|k,v| false }
assert_equal 'f', @yamldbm['e']
end
def test_reject
@yamldbm['a'] = 'b'
@yamldbm['c'] = 'd'
@yamldbm['e'] = 'f'
assert_equal({'c'=>'d','e'=>'f'}, @yamldbm.reject {|k,v| k == 'a'})
assert_equal({'a'=>'b','e'=>'f'}, @yamldbm.reject {|k,v| v == 'd'})
assert_equal({'a'=>'b','c'=>'d','e'=>'f'}, @yamldbm.reject {false})
end
end
end
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