You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

194 lines
4.2 KiB

package db
import (
"fmt"
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestDBIteratorSingleKey(t *testing.T) {
for backend := range backends {
t.Run(fmt.Sprintf("Backend %s", backend), func(t *testing.T) {
db, dir := newTempDB(t, backend)
defer os.RemoveAll(dir)
db.SetSync(bz("1"), bz("value_1"))
itr := db.Iterator(nil, nil)
checkValid(t, itr, true)
checkNext(t, itr, false)
checkValid(t, itr, false)
checkNextPanics(t, itr)
// Once invalid...
checkInvalid(t, itr)
})
}
}
func TestDBIteratorTwoKeys(t *testing.T) {
for backend := range backends {
t.Run(fmt.Sprintf("Backend %s", backend), func(t *testing.T) {
db, dir := newTempDB(t, backend)
defer os.RemoveAll(dir)
db.SetSync(bz("1"), bz("value_1"))
db.SetSync(bz("2"), bz("value_1"))
{ // Fail by calling Next too much
itr := db.Iterator(nil, nil)
checkValid(t, itr, true)
checkNext(t, itr, true)
checkValid(t, itr, true)
checkNext(t, itr, false)
checkValid(t, itr, false)
checkNextPanics(t, itr)
// Once invalid...
checkInvalid(t, itr)
}
})
}
}
func TestDBIteratorMany(t *testing.T) {
for backend := range backends {
t.Run(fmt.Sprintf("Backend %s", backend), func(t *testing.T) {
db, dir := newTempDB(t, backend)
defer os.RemoveAll(dir)
keys := make([][]byte, 100)
for i := 0; i < 100; i++ {
keys[i] = []byte{byte(i)}
}
value := []byte{5}
for _, k := range keys {
db.Set(k, value)
}
itr := db.Iterator(nil, nil)
defer itr.Close()
for ; itr.Valid(); itr.Next() {
assert.Equal(t, db.Get(itr.Key()), itr.Value())
}
})
}
}
func TestDBIteratorEmpty(t *testing.T) {
for backend := range backends {
t.Run(fmt.Sprintf("Backend %s", backend), func(t *testing.T) {
db, dir := newTempDB(t, backend)
defer os.RemoveAll(dir)
itr := db.Iterator(nil, nil)
checkInvalid(t, itr)
})
}
}
func TestDBIteratorEmptyBeginAfter(t *testing.T) {
for backend := range backends {
t.Run(fmt.Sprintf("Backend %s", backend), func(t *testing.T) {
db, dir := newTempDB(t, backend)
defer os.RemoveAll(dir)
itr := db.Iterator(bz("1"), nil)
checkInvalid(t, itr)
})
}
}
func TestDBIteratorNonemptyBeginAfter(t *testing.T) {
for backend := range backends {
t.Run(fmt.Sprintf("Backend %s", backend), func(t *testing.T) {
db, dir := newTempDB(t, backend)
defer os.RemoveAll(dir)
db.SetSync(bz("1"), bz("value_1"))
itr := db.Iterator(bz("2"), nil)
checkInvalid(t, itr)
})
}
}
func TestDBBatchWrite(t *testing.T) {
testCases := []struct {
modify func(batch Batch)
calls map[string]int
}{
0: {
func(batch Batch) {
batch.Set(bz("1"), bz("1"))
batch.Set(bz("2"), bz("2"))
batch.Delete(bz("3"))
batch.Set(bz("4"), bz("4"))
batch.Write()
},
map[string]int{
"Set": 0, "SetSync": 0, "SetNoLock": 3, "SetNoLockSync": 0,
"Delete": 0, "DeleteSync": 0, "DeleteNoLock": 1, "DeleteNoLockSync": 0,
},
},
1: {
func(batch Batch) {
batch.Set(bz("1"), bz("1"))
batch.Set(bz("2"), bz("2"))
batch.Set(bz("4"), bz("4"))
batch.Delete(bz("3"))
batch.Write()
},
map[string]int{
"Set": 0, "SetSync": 0, "SetNoLock": 3, "SetNoLockSync": 0,
"Delete": 0, "DeleteSync": 0, "DeleteNoLock": 1, "DeleteNoLockSync": 0,
},
},
2: {
func(batch Batch) {
batch.Set(bz("1"), bz("1"))
batch.Set(bz("2"), bz("2"))
batch.Delete(bz("3"))
batch.Set(bz("4"), bz("4"))
batch.WriteSync()
},
map[string]int{
"Set": 0, "SetSync": 0, "SetNoLock": 2, "SetNoLockSync": 1,
"Delete": 0, "DeleteSync": 0, "DeleteNoLock": 1, "DeleteNoLockSync": 0,
},
},
3: {
func(batch Batch) {
batch.Set(bz("1"), bz("1"))
batch.Set(bz("2"), bz("2"))
batch.Set(bz("4"), bz("4"))
batch.Delete(bz("3"))
batch.WriteSync()
},
map[string]int{
"Set": 0, "SetSync": 0, "SetNoLock": 3, "SetNoLockSync": 0,
"Delete": 0, "DeleteSync": 0, "DeleteNoLock": 0, "DeleteNoLockSync": 1,
},
},
}
for i, tc := range testCases {
mdb := newMockDB()
batch := mdb.NewBatch()
tc.modify(batch)
for call, exp := range tc.calls {
got := mdb.calls[call]
assert.Equal(t, exp, got, "#%v - key: %s", i, call)
}
}
}