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* test/dbm/test_dbm.rb (test_dbmfile_suffix): check magic numbers.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34686 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2012-02-18 18:01:02 +00:00
parent 0187905af2
commit 62debc952d
2 changed files with 32 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Sun Feb 19 03:00:30 2012 Tanaka Akira <akr@fsij.org>
* test/dbm/test_dbm.rb (test_dbmfile_suffix): check magic numbers.
Sun Feb 19 01:05:41 2012 Tanaka Akira <akr@fsij.org>
* ext/dbm/extconf.rb: detect GDBM's ndbm.h by testing dbm_clearerr is

29
test/dbm/test_dbm.rb
View file

@ -68,7 +68,7 @@ if defined? DBM
assert_instance_of(DBM, @dbm = DBM.new(@path))
end
def teardown
assert_nil(@dbm.close)
assert_nil(@dbm.close) unless @dbm.closed?
ObjectSpace.each_object(DBM) do |obj|
obj.close unless obj.closed?
end
@ -97,17 +97,44 @@ if defined? DBM
end
def test_dbmfile_suffix
@dbm.close
prefix = File.basename(@path)
suffixes = Dir.entries(@tmpdir).grep(/\A#{Regexp.escape prefix}/) { $' }.sort
pagname = "#{@path}.pag"
dirname = "#{@path}.dir"
dbname = "#{@path}.db"
case DBM::VERSION
when /\bNDBM\b/
assert_equal(%w[.dir .pag], suffixes)
when /\bGDBM\b/
assert_equal(%w[.dir .pag], suffixes)
pag = File.binread(pagname, 16)
pag_magics = [
0x13579ace, # GDBM_OMAGIC
0x13579acd, # GDBM_MAGIC32
0x13579acf, # GDBM_MAGIC64
]
assert_operator(pag_magics, :include?,
pag.unpack("i")[0]) # native endian, native int.
if !File.identical?(pagname, dirname)
dir = File.binread(dirname, 16)
assert_equal("GDBM", dir[0, 4])
end
when /\bBerkeley DB\b/
assert_equal(%w[.db], suffixes)
db = File.binread(dbname, 16)
assert(db[0,4].unpack("N") == [0x00061561] || # Berkeley DB 1
db[12,4].unpack("L") == [0x061561]) # Berkeley DBM 2 or later.
when /\bQDBM\b/
assert_equal(%w[.dir .pag], suffixes)
dir = File.binread(dirname, 16)
assert_equal("[depot]\0\v", dir[0, 9])
pag = File.binread(pagname, 16)
if [1].pack("s") == "\x00\x01" # big endian
assert_equal("[DEPOT]\n\f", pag[0, 9])
else # little endian
assert_equal("[depot]\n\f", pag[0, 9])
end
end
if suffixes == %w[.db]
assert_match(/\bBerkeley DB\b/, DBM::VERSION)