mirrors/tendermint
1
0
Fork 0
mirror of https://github.com/tendermint/tendermint.git synced 2026-09-29 11:15:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

CacheDB (#67)

Browse Source 
* Add CacheDB & SimpleMap
* Generic memBatch; Fix cLevelDB tests
* CacheWrap() for CacheDB and MemDB
* Change Iterator to match LeviGo Iterator
* Fixes from review
* cacheWrapWriteMutex and some race fixes
* Use tmlibs/common
* NewCWWMutex is exposed.  DB can be CacheWrap'd
* Remove GetOK, not needed
* Fsdb (#72)
* Add FSDB
* Review fixes from Anton
* Review changes
* Fixes from review
This commit is contained in:
Jae Kwon
2017-11-09 17:42:32 -05:00
committed by GitHub
parent 176c2ceed6
commit 8481c49c82
23 changed files with 1699 additions and 354 deletions
Download Patch File Download Diff File Expand all files Collapse all files
db/cache_db_test.go
+83
View File
@@ -0,0 +1,83 @@
package db
import (
"testing"
"github.com/stretchr/testify/require"
)
func bz(s string) []byte { return []byte(s) }
func TestCacheDB(t *testing.T) {
mem := NewMemDB()
cdb := mem.CacheWrap().(*CacheDB)
require.Empty(t, cdb.Get(bz("key1")), "Expected `key1` to be empty")
mem.Set(bz("key1"), bz("value1"))
cdb.Set(bz("key1"), bz("value1"))
require.Equal(t, bz("value1"), cdb.Get(bz("key1")))
cdb.Set(bz("key1"), bz("value2"))
require.Equal(t, bz("value2"), cdb.Get(bz("key1")))
require.Equal(t, bz("value1"), mem.Get(bz("key1")))
cdb.Write()
require.Equal(t, bz("value2"), mem.Get(bz("key1")))
require.Panics(t, func() { cdb.Write() }, "Expected second cdb.Write() to fail")
cdb = mem.CacheWrap().(*CacheDB)
cdb.Delete(bz("key1"))
require.Empty(t, cdb.Get(bz("key1")))
require.Equal(t, mem.Get(bz("key1")), bz("value2"))
cdb.Write()
require.Empty(t, cdb.Get(bz("key1")), "Expected `key1` to be empty")
require.Empty(t, mem.Get(bz("key1")), "Expected `key1` to be empty")
}
func TestCacheDBWriteLock(t *testing.T) {
mem := NewMemDB()
cdb := mem.CacheWrap().(*CacheDB)
require.NotPanics(t, func() { cdb.Write() })
require.Panics(t, func() { cdb.Write() })
cdb = mem.CacheWrap().(*CacheDB)
require.NotPanics(t, func() { cdb.Write() })
require.Panics(t, func() { cdb.Write() })
}
func TestCacheDBWriteLockNested(t *testing.T) {
mem := NewMemDB()
cdb := mem.CacheWrap().(*CacheDB)
cdb2 := cdb.CacheWrap().(*CacheDB)
require.NotPanics(t, func() { cdb2.Write() })
require.Panics(t, func() { cdb2.Write() })
cdb2 = cdb.CacheWrap().(*CacheDB)
require.NotPanics(t, func() { cdb2.Write() })
require.Panics(t, func() { cdb2.Write() })
}
func TestCacheDBNested(t *testing.T) {
mem := NewMemDB()
cdb := mem.CacheWrap().(*CacheDB)
cdb.Set(bz("key1"), bz("value1"))
require.Empty(t, mem.Get(bz("key1")))
require.Equal(t, bz("value1"), cdb.Get(bz("key1")))
cdb2 := cdb.CacheWrap().(*CacheDB)
require.Equal(t, bz("value1"), cdb2.Get(bz("key1")))
cdb2.Set(bz("key1"), bz("VALUE2"))
require.Equal(t, []byte(nil), mem.Get(bz("key1")))
require.Equal(t, bz("value1"), cdb.Get(bz("key1")))
require.Equal(t, bz("VALUE2"), cdb2.Get(bz("key1")))
cdb2.Write()
require.Equal(t, []byte(nil), mem.Get(bz("key1")))
require.Equal(t, bz("VALUE2"), cdb.Get(bz("key1")))
cdb.Write()
require.Equal(t, bz("VALUE2"), mem.Get(bz("key1")))
}