* ext/dbm/dbm.c (fdbm_initialize): accept optional 3rd argument to

  specify an open flag.
  (Init_dbm): define open flags: DBM::READER, DBM::WRITER, DBM::WRCREAT
  and DBM::NEWDB.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@6326 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 13 insertions, 1 deletions

diff --git a/test/gdbm/test_gdbm.rb b/test/gdbm/test_gdbm.rb
index ca0110cd9..c90f4a607 100644
--- a/test/gdbm/test_gdbm.rb
+++ b/test/gdbm/test_gdbm.rb
@@ -21,7 +21,7 @@ if defined? GDBM
       FileUtils.rm_rf TMPROOT if File.directory?(TMPROOT)
     end
 
-    def test_open
+    def test_reader_open
       GDBM.open("#{TMPROOT}/a.dbm") {}
       v = GDBM.open("#{TMPROOT}/a.dbm", nil, GDBM::READER) {|d|
         assert_raises(GDBMError) { d["k"] = "v" }
@@ -30,6 +30,18 @@ if defined? GDBM
       assert(v)
     end
 
+    def test_newdb_open
+      GDBM.open("#{TMPROOT}/a.dbm") {|dbm|
+        dbm["k"] = "v"
+      } 
+      v = GDBM.open("#{TMPROOT}/a.dbm", nil, GDBM::NEWDB) {|d|
+        assert_equal(0, d.length)
+        assert_nil(d["k"])
+        true
+      }
+      assert(v)
+    end
+
     def test_freeze
       GDBM.open("#{TMPROOT}/a.dbm") {|d|
         d.freeze