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package bolt
import (
"bytes"
"fmt"
"os"
"strings"
"testing"
"testing/quick"
"github.com/stretchr/testify/assert"
)
// Ensure that a RWTransaction can be retrieved.
func TestRWTransaction(t *testing.T) {
withOpenDB(func(db *DB, path string) {
txn, err := db.RWTransaction()
assert.NotNil(t, txn)
assert.NoError(t, err)
})
}
// Ensure that a bucket can be created and retrieved.
func TestTransactionCreateBucket(t *testing.T) {
withOpenDB(func(db *DB, path string) {
// Create a bucket.
err := db.CreateBucket("widgets")
assert.NoError(t, err)
// Read the bucket through a separate transaction.
b, err := db.Bucket("widgets")
assert.NotNil(t, b)
assert.NoError(t, err)
})
}
// Ensure that a bucket cannot be created twice.
func TestTransactionRecreateBucket(t *testing.T) {
withOpenDB(func(db *DB, path string) {
// Create a bucket.
err := db.CreateBucket("widgets")
assert.NoError(t, err)
// Create the same bucket again.
err = db.CreateBucket("widgets")
assert.Equal(t, err, &Error{"bucket already exists", nil})
})
}
// Ensure that a bucket is created with a non-blank name.
func TestTransactionCreateBucketWithoutName(t *testing.T) {
withOpenDB(func(db *DB, path string) {
err := db.CreateBucket("")
assert.Equal(t, err, &Error{"bucket name cannot be blank", nil})
})
}
// Ensure that a bucket name is not too long.
func TestTransactionCreateBucketWithLongName(t *testing.T) {
withOpenDB(func(db *DB, path string) {
err := db.CreateBucket(strings.Repeat("X", 255))
assert.NoError(t, err)
err = db.CreateBucket(strings.Repeat("X", 256))
assert.Equal(t, err, &Error{"bucket name too long", nil})
})
}
// Ensure that a bucket can write random keys and values across multiple txns.
func TestRWTransactionPutSingle(t *testing.T) {
index := 0
f := func(items testdata) bool {
withOpenDB(func(db *DB, path string) {
m := make(map[string][]byte)
db.CreateBucket("widgets")
for _, item := range items {
if err := db.Put("widgets", item.Key, item.Value); err != nil {
panic("put error: " + err.Error())
}
m[string(item.Key)] = item.Value
// Verify all key/values so far.
i := 0
for k, v := range m {
value, err := db.Get("widgets", []byte(k))
if err != nil {
panic("get error: " + err.Error())
}
if !bytes.Equal(value, v) {
db.CopyFile("/tmp/bolt.put.single.db")
t.Fatalf("value mismatch [run %d] (%d of %d):\nkey: %x\ngot: %x\nexp: %x", index, i, len(m), []byte(k), value, v)
}
i++
}
}
fmt.Fprint(os.Stderr, ".")
})
index++
return true
}
if err := quick.Check(f, qconfig()); err != nil {
t.Error(err)
}
fmt.Fprint(os.Stderr, "\n")
}
// Ensure that a transaction can insert multiple key/value pairs at once.
func TestRWTransactionPutMultiple(t *testing.T) {
f := func(items testdata) bool {
withOpenDB(func(db *DB, path string) {
// Bulk insert all values.
db.CreateBucket("widgets")
rwtxn, _ := db.RWTransaction()
for _, item := range items {
assert.NoError(t, rwtxn.Put("widgets", item.Key, item.Value))
}
assert.NoError(t, rwtxn.Commit())
// Verify all items exist.
txn, _ := db.Transaction()
for _, item := range items {
if !assert.Equal(t, item.Value, txn.Get("widgets", item.Key)) {
db.CopyFile("/tmp/bolt.put.multiple.db")
t.FailNow()
}
}
txn.Close()
})
fmt.Fprint(os.Stderr, ".")
return true
}
if err := quick.Check(f, qconfig()); err != nil {
t.Error(err)
}
fmt.Fprint(os.Stderr, "\n")
}
// Ensure that a transaction can delete all key/value pairs and return to a single leaf page.
func TestRWTransactionDelete(t *testing.T) {
f := func(items testdata) bool {
withOpenDB(func(db *DB, path string) {
// Bulk insert all values.
db.CreateBucket("widgets")
rwtxn, _ := db.RWTransaction()
for _, item := range items {
assert.NoError(t, rwtxn.Put("widgets", item.Key, item.Value))
}
assert.NoError(t, rwtxn.Commit())
// Remove items one at a time and check consistency.
for i, item := range items {
assert.NoError(t, db.Delete("widgets", item.Key))
// Anything before our deletion index should be nil.
txn, _ := db.Transaction()
for j, exp := range items {
if j > i {
if !assert.Equal(t, exp.Value, txn.Get("widgets", exp.Key)) {
t.FailNow()
}
} else {
if !assert.Nil(t, txn.Get("widgets", exp.Key)) {
t.FailNow()
}
}
}
txn.Close()
}
})
fmt.Fprint(os.Stderr, ".")
return true
}
if err := quick.Check(f, qconfig()); err != nil {
t.Error(err)
}
fmt.Fprint(os.Stderr, "\n")
}
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