require 'test/unit' begin require 'dbm' rescue LoadError end if defined? DBM require 'tmpdir' require 'fileutils' class TestDBM < Test::Unit::TestCase def TestDBM.uname_s require 'rbconfig' case Config::CONFIG['host_os'] when 'cygwin' require 'Win32API' uname = Win32API.new('cygwin1', 'uname', 'P', 'I') utsname = ' ' * 100 raise 'cannot get system name' if uname.call(utsname) == -1 utsname.unpack('A20' * 5)[0] else Config::CONFIG['host_os'] end end SYSTEM = uname_s def setup @path = "tmptest_dbm_" assert_instance_of(DBM, @dbm = DBM.new(@path)) # prepare to make readonly DBM file DBM.open("tmptest_dbm_rdonly") {|dbm| dbm['foo'] = 'FOO' } File.chmod(0400, *Dir.glob("tmptest_dbm_rdonly.*")) assert_instance_of(DBM, @dbm_rdonly = DBM.new("tmptest_dbm_rdonly", nil)) end def teardown assert_nil(@dbm.close) assert_nil(@dbm_rdonly.close) ObjectSpace.each_object(DBM) do |obj| obj.close unless obj.closed? end File.delete *Dir.glob("tmptest_dbm*").to_a p Dir.glob("tmptest_dbm*") if $DEBUG end def check_size(expect, dbm=@dbm) assert_equal(expect, dbm.size) n = 0 dbm.each { n+=1 } assert_equal(expect, n) if expect == 0 assert_equal(true, dbm.empty?) else assert_equal(false, dbm.empty?) end end def have_fork? begin fork{} true rescue NotImplementedError false end end def test_s_new_has_no_block # DBM.new ignore the block foo = true assert_instance_of(DBM, dbm = DBM.new("tmptest_dbm") { foo = false }) assert_equal(foo, true) assert_nil(dbm.close) end def test_s_open_no_create assert_nil(dbm = DBM.open("tmptest_dbm", nil)) ensure dbm.close if dbm end def test_s_open_with_block assert_equal(DBM.open("tmptest_dbm") { :foo }, :foo) end def test_s_open_lock return unless have_fork? # snip this test fork() { assert_instance_of(DBM, dbm = DBM.open("tmptest_dbm", 0644)) sleep 2 } begin sleep 1 assert_raise(Errno::EWOULDBLOCK, "NEVER MIND IF YOU USE Berkeley DB3") { begin assert_instance_of(DBM, dbm2 = DBM.open("tmptest_dbm", 0644)) rescue Errno::EAGAIN, Errno::EACCES, Errno::EINVAL raise Errno::EWOULDBLOCK end } ensure Process.wait end end =begin # Is it guaranteed on many OS? def test_s_open_lock_one_process # locking on one process assert_instance_of(DBM, dbm = DBM.open("tmptest_dbm", 0644)) assert_raise(Errno::EWOULDBLOCK) { begin DBM.open("tmptest_dbm", 0644) rescue Errno::EAGAIN raise Errno::EWOULDBLOCK end } end =end def test_s_open_nolock # dbm 1.8.0 specific if not defined? DBM::NOLOCK return end return unless have_fork? # snip this test fork() { assert_instance_of(DBM, dbm = DBM.open("tmptest_dbm", 0644, DBM::NOLOCK)) sleep 2 } sleep 1 begin dbm2 = nil assert_no_exception(Errno::EWOULDBLOCK, Errno::EAGAIN, Errno::EACCES) { assert_instance_of(DBM, dbm2 = DBM.open("tmptest_dbm", 0644)) } ensure Process.wait dbm2.close if dbm2 end p Dir.glob("tmptest_dbm*") if $DEBUG fork() { assert_instance_of(DBM, dbm = DBM.open("tmptest_dbm", 0644)) sleep 2 } begin sleep 1 dbm2 = nil assert_no_exception(Errno::EWOULDBLOCK, Errno::EAGAIN, Errno::EACCES) { # this test is failed on Cygwin98 (???) assert_instance_of(DBM, dbm2 = DBM.open("tmptest_dbm", 0644, DBM::NOLOCK)) } ensure Process.wait dbm2.close if dbm2 end end def test_s_open_error assert_instance_of(DBM, dbm = DBM.open("tmptest_dbm", 0)) assert_raise(Errno::EACCES, "NEVER MIND IF YOU USE Berkeley DB3") { DBM.open("tmptest_dbm", 0) } dbm.close end def test_close assert_instance_of(DBM, dbm = DBM.open("tmptest_dbm")) assert_nil(dbm.close) # closed DBM file assert_raise(DBMError) { dbm.close } end def test_aref assert_equal('bar', @dbm['foo'] = 'bar') assert_equal('bar', @dbm['foo']) assert_nil(@dbm['bar']) end def test_fetch assert_equal('bar', @dbm['foo']='bar') assert_equal('bar', @dbm.fetch('foo')) # key not found assert_raise(IndexError) { @dbm.fetch('bar') } # test for `ifnone' arg assert_equal('baz', @dbm.fetch('bar', 'baz')) # test for `ifnone' block assert_equal('foobar', @dbm.fetch('bar') {|key| 'foo' + key }) end def test_aset num = 0 2.times {|i| assert_equal('foo', @dbm['foo'] = 'foo') assert_equal('foo', @dbm['foo']) assert_equal('bar', @dbm['foo'] = 'bar') assert_equal('bar', @dbm['foo']) num += 1 if i == 0 assert_equal(num, @dbm.size) # assign nil assert_equal('', @dbm['bar'] = '') assert_equal('', @dbm['bar']) num += 1 if i == 0 assert_equal(num, @dbm.size) # empty string assert_equal('', @dbm[''] = '') assert_equal('', @dbm['']) num += 1 if i == 0 assert_equal(num, @dbm.size) # Fixnum assert_equal('200', @dbm['100'] = '200') assert_equal('200', @dbm['100']) num += 1 if i == 0 assert_equal(num, @dbm.size) # Big key and value assert_equal('y' * 100, @dbm['x' * 100] = 'y' * 100) assert_equal('y' * 100, @dbm['x' * 100]) num += 1 if i == 0 assert_equal(num, @dbm.size) } end def test_index assert_equal('bar', @dbm['foo'] = 'bar') assert_equal('foo', @dbm.index('bar')) assert_nil(@dbm['bar']) end def test_indexes keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values assert_equal(values.reverse, @dbm.indexes(*keys.reverse)) end def test_values_at keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values assert_equal(values.reverse, @dbm.values_at(*keys.reverse)) end def test_select_with_block keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values ret = @dbm.select {|k,v| assert_equal(k.upcase, v) k != "bar" } assert_equal([['baz', 'BAZ'], ['foo', 'FOO']], ret.sort) end def test_length num = 10 assert_equal(0, @dbm.size) num.times {|i| i = i.to_s @dbm[i] = i } assert_equal(num, @dbm.size) @dbm.shift assert_equal(num - 1, @dbm.size) end def test_empty? assert_equal(true, @dbm.empty?) @dbm['foo'] = 'FOO' assert_equal(false, @dbm.empty?) end def test_each_pair n = 0 @dbm.each_pair { n += 1 } assert_equal(0, n) keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values n = 0 ret = @dbm.each_pair {|key, val| assert_not_nil(i = keys.index(key)) assert_equal(val, values[i]) n += 1 } assert_equal(keys.size, n) assert_equal(@dbm, ret) end def test_each_value n = 0 @dbm.each_value { n += 1 } assert_equal(0, n) keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values n = 0 ret = @dbm.each_value {|val| assert_not_nil(key = @dbm.index(val)) assert_not_nil(i = keys.index(key)) assert_equal(val, values[i]) n += 1 } assert_equal(keys.size, n) assert_equal(@dbm, ret) end def test_each_key n = 0 @dbm.each_key { n += 1 } assert_equal(0, n) keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values n = 0 ret = @dbm.each_key {|key| assert_not_nil(i = keys.index(key)) assert_equal(@dbm[key], values[i]) n += 1 } assert_equal(keys.size, n) assert_equal(@dbm, ret) end def test_keys assert_equal([], @dbm.keys) keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values assert_equal(keys.sort, @dbm.keys.sort) assert_equal(values.sort, @dbm.values.sort) end def test_values test_keys end def test_shift assert_nil(@dbm.shift) assert_equal(0, @dbm.size) keys = %w(foo bar baz) values = %w(FOO BAR BAZ) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values ret_keys = [] ret_values = [] while ret = @dbm.shift ret_keys.push ret[0] ret_values.push ret[1] assert_equal(keys.size - ret_keys.size, @dbm.size) end assert_equal(keys.sort, ret_keys.sort) assert_equal(values.sort, ret_values.sort) end def test_delete keys = %w(foo bar baz) values = %w(FOO BAR BAZ) key = keys[1] assert_nil(@dbm.delete(key)) assert_equal(0, @dbm.size) @dbm[keys[0]], @dbm[keys[1]], @dbm[keys[2]] = values assert_equal('BAR', @dbm.delete(key)) assert_nil(@dbm[key]) assert_equal(2, @dbm.size) assert_nil(@dbm.delete(key)) if /^CYGWIN_9/ !~ SYSTEM assert_raise(DBMError) { @dbm_rdonly.delete("foo") } assert_nil(@dbm_rdonly.delete("bar")) end end def test_delete_with_block key = 'no called block' @dbm[key] = 'foo' assert_equal('foo', @dbm.delete(key) {|k| k.replace 'called block'}) assert_equal('no called block', key) assert_equal(0, @dbm.size) key = 'no called block' assert_equal(:blockval, @dbm.delete(key) {|k| k.replace 'called block'; :blockval}) assert_equal('called block', key) assert_equal(0, @dbm.size) end def test_delete_if v = "0" 100.times {@dbm[v] = v; v = v.next} ret = @dbm.delete_if {|key, val| key.to_i < 50} assert_equal(@dbm, ret) check_size(50, @dbm) ret = @dbm.delete_if {|key, val| key.to_i >= 50} assert_equal(@dbm, ret) check_size(0, @dbm) # break v = "0" 100.times {@dbm[v] = v; v = v.next} check_size(100, @dbm) n = 0; @dbm.delete_if {|key, val| break if n > 50 n+=1 true } assert_equal(51, n) check_size(49, @dbm) @dbm.clear # raise v = "0" 100.times {@dbm[v] = v; v = v.next} check_size(100, @dbm) n = 0; begin @dbm.delete_if {|key, val| raise "runtime error" if n > 50 n+=1 true } rescue end assert_equal(51, n) check_size(49, @dbm) end def test_reject v = "0" 100.times {@dbm[v] = v; v = v.next} hash = @dbm.reject {|key, val| key.to_i < 50} assert_instance_of(Hash, hash) assert_equal(100, @dbm.size) assert_equal(50, hash.size) hash.each_pair {|key,val| assert_equal(false, key.to_i < 50) assert_equal(key, val) } hash = @dbm.reject {|key, val| key.to_i < 100} assert_instance_of(Hash, hash) assert_equal(true, hash.empty?) end def test_clear v = "1" 100.times {v = v.next; @dbm[v] = v} assert_equal(@dbm, @dbm.clear) # validate DBM#size i = 0 @dbm.each { i += 1 } assert_equal(@dbm.size, i) assert_equal(0, i) end def test_invert v = "0" 100.times {@dbm[v] = v; v = v.next} hash = @dbm.invert assert_instance_of(Hash, hash) assert_equal(100, hash.size) hash.each_pair {|key, val| assert_equal(key.to_i, val.to_i) } end def test_update hash = {} v = "0" 100.times {v = v.next; hash[v] = v} @dbm["101"] = "101" @dbm.update hash assert_equal(101, @dbm.size) @dbm.each_pair {|key, val| assert_equal(key.to_i, val.to_i) } end def test_replace hash = {} v = "0" 100.times {v = v.next; hash[v] = v} @dbm["101"] = "101" @dbm.replace hash assert_equal(100, @dbm.size) @dbm.each_pair {|key, val| assert_equal(key.to_i, val.to_i) } end def test_haskey? assert_equal('bar', @dbm['foo']='bar') assert_equal(true, @dbm.has_key?('foo')) assert_equal(false, @dbm.has_key?('bar')) end def test_has_value? assert_equal('bar', @dbm['foo']='bar') assert_equal(true, @dbm.has_value?('bar')) assert_equal(false, @dbm.has_value?('foo')) end def test_to_a v = "0" 100.times {v = v.next; @dbm[v] = v} ary = @dbm.to_a assert_instance_of(Array, ary) assert_equal(100, ary.size) ary.each {|key,val| assert_equal(key.to_i, val.to_i) } end def test_to_hash v = "0" 100.times {v = v.next; @dbm[v] = v} hash = @dbm.to_hash assert_instance_of(Hash, hash) assert_equal(100, hash.size) hash.each {|key,val| assert_equal(key.to_i, val.to_i) } end end class TestDBM2 < Test::Unit::TestCase TMPROOT = "#{Dir.tmpdir}/ruby-dbm.#{$$}" def setup Dir.mkdir TMPROOT end def teardown FileUtils.rm_rf TMPROOT if File.directory?(TMPROOT) end def test_reader_open DBM.open("#{TMPROOT}/a") {} v = DBM.open("#{TMPROOT}/a", nil, DBM::READER) {|d| # Errno::EPERM is raised on Solaris which use ndbm. # DBMError is raised on Debian which use gdbm. assert_raises(Errno::EPERM, DBMError) { d["k"] = "v" } true } assert(v) end def test_newdb_open DBM.open("#{TMPROOT}/a") {|dbm| dbm["k"] = "v" } v = DBM.open("#{TMPROOT}/a", nil, DBM::NEWDB) {|d| assert_equal(0, d.length) assert_nil(d["k"]) true } assert(v) end def test_freeze DBM.open("#{TMPROOT}/a") {|d| d.freeze assert_raises(TypeError) { d["k"] = "v" } } end end end