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package db
import (
"fmt"
"os"
"path"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
cmn "github.com/tendermint/tmlibs/common"
)
func cleanupDBDir(dir, name string) {
os.RemoveAll(path.Join(dir, name) + ".db")
}
func testBackendGetSetDelete(t *testing.T, backend string) {
// Default
dir, dirname := cmn.Tempdir(fmt.Sprintf("test_backend_%s_", backend))
defer dir.Close()
db := NewDB("testdb", backend, dirname)
key := []byte("abc")
require.Nil(t, db.Get(key))
// Set empty ("")
db.Set(key, []byte(""))
require.NotNil(t, db.Get(key))
require.Empty(t, db.Get(key))
// Set empty (nil)
db.Set(key, nil)
require.NotNil(t, db.Get(key))
require.Empty(t, db.Get(key))
// Delete
db.Delete(key)
require.Nil(t, db.Get(key))
}
func TestBackendsGetSetDelete(t *testing.T) {
for dbType, _ := range backends {
testBackendGetSetDelete(t, dbType)
}
}
func assertPanics(t *testing.T, dbType, name string, fn func()) {
defer func() {
r := recover()
assert.NotNil(t, r, cmn.Fmt("expecting %s.%s to panic", dbType, name))
}()
fn()
}
func TestBackendsNilKeys(t *testing.T) {
// test all backends
for dbType, creator := range backends {
name := cmn.Fmt("test_%x", cmn.RandStr(12))
db, err := creator(name, "")
defer cleanupDBDir("", name)
assert.Nil(t, err)
assertPanics(t, dbType, "get", func() { db.Get(nil) })
assertPanics(t, dbType, "has", func() { db.Has(nil) })
assertPanics(t, dbType, "set", func() { db.Set(nil, []byte("abc")) })
assertPanics(t, dbType, "setsync", func() { db.SetSync(nil, []byte("abc")) })
assertPanics(t, dbType, "delete", func() { db.Delete(nil) })
assertPanics(t, dbType, "deletesync", func() { db.DeleteSync(nil) })
db.Close()
}
}
func TestGoLevelDBBackendStr(t *testing.T) {
name := cmn.Fmt("test_%x", cmn.RandStr(12))
db := NewDB(name, LevelDBBackendStr, "")
defer cleanupDBDir("", name)
if _, ok := backends[CLevelDBBackendStr]; !ok {
_, ok := db.(*GoLevelDB)
assert.True(t, ok)
}
}