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Database: return list of keys by prefix.

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This commit is contained in:
Andrey Smirnov
2014-02-11 17:21:35 +04:00
parent aea8ae9a96
commit 8d72f1a959
2 changed files with 24 additions and 1 deletions
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database/leveldb_test.go
+5 -1
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@@ -64,19 +64,23 @@ func (s *LevelDBSuite) TestDelete(c *C) {
c.Assert(err, IsNil)
}
func (s *LevelDBSuite) TestFetchByPrefix(c *C) {
func (s *LevelDBSuite) TestByPrefix(c *C) {
c.Check(s.db.FetchByPrefix([]byte{0x80}), DeepEquals, [][]byte{})
s.db.Put([]byte{0x80, 0x01}, []byte{0x01})
s.db.Put([]byte{0x80, 0x03}, []byte{0x03})
s.db.Put([]byte{0x80, 0x02}, []byte{0x02})
c.Check(s.db.FetchByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x01}, {0x02}, {0x03}})
c.Check(s.db.KeysByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x80, 0x01}, {0x80, 0x02}, {0x80, 0x03}})
s.db.Put([]byte{0x90, 0x01}, []byte{0x04})
c.Check(s.db.FetchByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x01}, {0x02}, {0x03}})
c.Check(s.db.KeysByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x80, 0x01}, {0x80, 0x02}, {0x80, 0x03}})
s.db.Put([]byte{0x00, 0x01}, []byte{0x05})
c.Check(s.db.FetchByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x01}, {0x02}, {0x03}})
c.Check(s.db.KeysByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x80, 0x01}, {0x80, 0x02}, {0x80, 0x03}})
c.Check(s.db.FetchByPrefix([]byte{0xa0}), DeepEquals, [][]byte{})
c.Check(s.db.KeysByPrefix([]byte{0xa0}), DeepEquals, [][]byte{})
}