diff options
Diffstat (limited to 'tests/bucket_test.go')
-rw-r--r-- | tests/bucket_test.go | 1909 |
1 files changed, 0 insertions, 1909 deletions
diff --git a/tests/bucket_test.go b/tests/bucket_test.go deleted file mode 100644 index cddbe27..0000000 --- a/tests/bucket_test.go +++ /dev/null @@ -1,1909 +0,0 @@ -package bolt_test - -import ( - "bytes" - "encoding/binary" - "errors" - "fmt" - "log" - "math/rand" - "os" - "strconv" - "strings" - "testing" - "testing/quick" - - "github.com/boltdb/bolt" -) - -// Ensure that a bucket that gets a non-existent key returns nil. -func TestBucket_Get_NonExistent(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if v := b.Get([]byte("foo")); v != nil { - t.Fatal("expected nil value") - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can read a value that is not flushed yet. -func TestBucket_Get_FromNode(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - if v := b.Get([]byte("foo")); !bytes.Equal(v, []byte("bar")) { - t.Fatalf("unexpected value: %v", v) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket retrieved via Get() returns a nil. -func TestBucket_Get_IncompatibleValue(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - _, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if _, err := tx.Bucket([]byte("widgets")).CreateBucket([]byte("foo")); err != nil { - t.Fatal(err) - } - - if tx.Bucket([]byte("widgets")).Get([]byte("foo")) != nil { - t.Fatal("expected nil value") - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a slice returned from a bucket has a capacity equal to its length. -// This also allows slices to be appended to since it will require a realloc by Go. -// -// https://github.com/boltdb/bolt/issues/544 -func TestBucket_Get_Capacity(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - // Write key to a bucket. - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("bucket")) - if err != nil { - return err - } - return b.Put([]byte("key"), []byte("val")) - }); err != nil { - t.Fatal(err) - } - - // Retrieve value and attempt to append to it. - if err := db.Update(func(tx *bolt.Tx) error { - k, v := tx.Bucket([]byte("bucket")).Cursor().First() - - // Verify capacity. - if len(k) != cap(k) { - t.Fatalf("unexpected key slice capacity: %d", cap(k)) - } else if len(v) != cap(v) { - t.Fatalf("unexpected value slice capacity: %d", cap(v)) - } - - // Ensure slice can be appended to without a segfault. - k = append(k, []byte("123")...) - v = append(v, []byte("123")...) - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can write a key/value. -func TestBucket_Put(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - - v := tx.Bucket([]byte("widgets")).Get([]byte("foo")) - if !bytes.Equal([]byte("bar"), v) { - t.Fatalf("unexpected value: %v", v) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can rewrite a key in the same transaction. -func TestBucket_Put_Repeat(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("baz")); err != nil { - t.Fatal(err) - } - - value := tx.Bucket([]byte("widgets")).Get([]byte("foo")) - if !bytes.Equal([]byte("baz"), value) { - t.Fatalf("unexpected value: %v", value) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can write a bunch of large values. -func TestBucket_Put_Large(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - count, factor := 100, 200 - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - for i := 1; i < count; i++ { - if err := b.Put([]byte(strings.Repeat("0", i*factor)), []byte(strings.Repeat("X", (count-i)*factor))); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - for i := 1; i < count; i++ { - value := b.Get([]byte(strings.Repeat("0", i*factor))) - if !bytes.Equal(value, []byte(strings.Repeat("X", (count-i)*factor))) { - t.Fatalf("unexpected value: %v", value) - } - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a database can perform multiple large appends safely. -func TestDB_Put_VeryLarge(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } - - n, batchN := 400000, 200000 - ksize, vsize := 8, 500 - - db := MustOpenDB() - defer db.MustClose() - - for i := 0; i < n; i += batchN { - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucketIfNotExists([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - for j := 0; j < batchN; j++ { - k, v := make([]byte, ksize), make([]byte, vsize) - binary.BigEndian.PutUint32(k, uint32(i+j)) - if err := b.Put(k, v); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - } -} - -// Ensure that a setting a value on a key with a bucket value returns an error. -func TestBucket_Put_IncompatibleValue(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b0, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if _, err := tx.Bucket([]byte("widgets")).CreateBucket([]byte("foo")); err != nil { - t.Fatal(err) - } - if err := b0.Put([]byte("foo"), []byte("bar")); err != bolt.ErrIncompatibleValue { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a setting a value while the transaction is closed returns an error. -func TestBucket_Put_Closed(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - tx, err := db.Begin(true) - if err != nil { - t.Fatal(err) - } - - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if err := tx.Rollback(); err != nil { - t.Fatal(err) - } - - if err := b.Put([]byte("foo"), []byte("bar")); err != bolt.ErrTxClosed { - t.Fatalf("unexpected error: %s", err) - } -} - -// Ensure that setting a value on a read-only bucket returns an error. -func TestBucket_Put_ReadOnly(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - if err := b.Put([]byte("foo"), []byte("bar")); err != bolt.ErrTxNotWritable { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can delete an existing key. -func TestBucket_Delete(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - if err := b.Delete([]byte("foo")); err != nil { - t.Fatal(err) - } - if v := b.Get([]byte("foo")); v != nil { - t.Fatalf("unexpected value: %v", v) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that deleting a large set of keys will work correctly. -func TestBucket_Delete_Large(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - for i := 0; i < 100; i++ { - if err := b.Put([]byte(strconv.Itoa(i)), []byte(strings.Repeat("*", 1024))); err != nil { - t.Fatal(err) - } - } - - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - for i := 0; i < 100; i++ { - if err := b.Delete([]byte(strconv.Itoa(i))); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - for i := 0; i < 100; i++ { - if v := b.Get([]byte(strconv.Itoa(i))); v != nil { - t.Fatalf("unexpected value: %v, i=%d", v, i) - } - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Deleting a very large list of keys will cause the freelist to use overflow. -func TestBucket_Delete_FreelistOverflow(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } - - db := MustOpenDB() - defer db.MustClose() - - k := make([]byte, 16) - for i := uint64(0); i < 10000; i++ { - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucketIfNotExists([]byte("0")) - if err != nil { - t.Fatalf("bucket error: %s", err) - } - - for j := uint64(0); j < 1000; j++ { - binary.BigEndian.PutUint64(k[:8], i) - binary.BigEndian.PutUint64(k[8:], j) - if err := b.Put(k, nil); err != nil { - t.Fatalf("put error: %s", err) - } - } - - return nil - }); err != nil { - t.Fatal(err) - } - } - - // Delete all of them in one large transaction - if err := db.Update(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("0")) - c := b.Cursor() - for k, _ := c.First(); k != nil; k, _ = c.Next() { - if err := c.Delete(); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that accessing and updating nested buckets is ok across transactions. -func TestBucket_Nested(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - // Create a widgets bucket. - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - // Create a widgets/foo bucket. - _, err = b.CreateBucket([]byte("foo")) - if err != nil { - t.Fatal(err) - } - - // Create a widgets/bar key. - if err := b.Put([]byte("bar"), []byte("0000")); err != nil { - t.Fatal(err) - } - - return nil - }); err != nil { - t.Fatal(err) - } - db.MustCheck() - - // Update widgets/bar. - if err := db.Update(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - if err := b.Put([]byte("bar"), []byte("xxxx")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - db.MustCheck() - - // Cause a split. - if err := db.Update(func(tx *bolt.Tx) error { - var b = tx.Bucket([]byte("widgets")) - for i := 0; i < 10000; i++ { - if err := b.Put([]byte(strconv.Itoa(i)), []byte(strconv.Itoa(i))); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - db.MustCheck() - - // Insert into widgets/foo/baz. - if err := db.Update(func(tx *bolt.Tx) error { - var b = tx.Bucket([]byte("widgets")) - if err := b.Bucket([]byte("foo")).Put([]byte("baz"), []byte("yyyy")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - db.MustCheck() - - // Verify. - if err := db.View(func(tx *bolt.Tx) error { - var b = tx.Bucket([]byte("widgets")) - if v := b.Bucket([]byte("foo")).Get([]byte("baz")); !bytes.Equal(v, []byte("yyyy")) { - t.Fatalf("unexpected value: %v", v) - } - if v := b.Get([]byte("bar")); !bytes.Equal(v, []byte("xxxx")) { - t.Fatalf("unexpected value: %v", v) - } - for i := 0; i < 10000; i++ { - if v := b.Get([]byte(strconv.Itoa(i))); !bytes.Equal(v, []byte(strconv.Itoa(i))) { - t.Fatalf("unexpected value: %v", v) - } - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that deleting a bucket using Delete() returns an error. -func TestBucket_Delete_Bucket(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if _, err := b.CreateBucket([]byte("foo")); err != nil { - t.Fatal(err) - } - if err := b.Delete([]byte("foo")); err != bolt.ErrIncompatibleValue { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that deleting a key on a read-only bucket returns an error. -func TestBucket_Delete_ReadOnly(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.View(func(tx *bolt.Tx) error { - if err := tx.Bucket([]byte("widgets")).Delete([]byte("foo")); err != bolt.ErrTxNotWritable { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a deleting value while the transaction is closed returns an error. -func TestBucket_Delete_Closed(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - tx, err := db.Begin(true) - if err != nil { - t.Fatal(err) - } - - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if err := tx.Rollback(); err != nil { - t.Fatal(err) - } - if err := b.Delete([]byte("foo")); err != bolt.ErrTxClosed { - t.Fatalf("unexpected error: %s", err) - } -} - -// Ensure that deleting a bucket causes nested buckets to be deleted. -func TestBucket_DeleteBucket_Nested(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - foo, err := widgets.CreateBucket([]byte("foo")) - if err != nil { - t.Fatal(err) - } - - bar, err := foo.CreateBucket([]byte("bar")) - if err != nil { - t.Fatal(err) - } - if err := bar.Put([]byte("baz"), []byte("bat")); err != nil { - t.Fatal(err) - } - if err := tx.Bucket([]byte("widgets")).DeleteBucket([]byte("foo")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that deleting a bucket causes nested buckets to be deleted after they have been committed. -func TestBucket_DeleteBucket_Nested2(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - foo, err := widgets.CreateBucket([]byte("foo")) - if err != nil { - t.Fatal(err) - } - - bar, err := foo.CreateBucket([]byte("bar")) - if err != nil { - t.Fatal(err) - } - - if err := bar.Put([]byte("baz"), []byte("bat")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - widgets := tx.Bucket([]byte("widgets")) - if widgets == nil { - t.Fatal("expected widgets bucket") - } - - foo := widgets.Bucket([]byte("foo")) - if foo == nil { - t.Fatal("expected foo bucket") - } - - bar := foo.Bucket([]byte("bar")) - if bar == nil { - t.Fatal("expected bar bucket") - } - - if v := bar.Get([]byte("baz")); !bytes.Equal(v, []byte("bat")) { - t.Fatalf("unexpected value: %v", v) - } - if err := tx.DeleteBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.View(func(tx *bolt.Tx) error { - if tx.Bucket([]byte("widgets")) != nil { - t.Fatal("expected bucket to be deleted") - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that deleting a child bucket with multiple pages causes all pages to get collected. -// NOTE: Consistency check in bolt_test.DB.Close() will panic if pages not freed properly. -func TestBucket_DeleteBucket_Large(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - foo, err := widgets.CreateBucket([]byte("foo")) - if err != nil { - t.Fatal(err) - } - - for i := 0; i < 1000; i++ { - if err := foo.Put([]byte(fmt.Sprintf("%d", i)), []byte(fmt.Sprintf("%0100d", i))); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - if err := tx.DeleteBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a simple value retrieved via Bucket() returns a nil. -func TestBucket_Bucket_IncompatibleValue(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if err := widgets.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - if b := tx.Bucket([]byte("widgets")).Bucket([]byte("foo")); b != nil { - t.Fatal("expected nil bucket") - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that creating a bucket on an existing non-bucket key returns an error. -func TestBucket_CreateBucket_IncompatibleValue(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if err := widgets.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - if _, err := widgets.CreateBucket([]byte("foo")); err != bolt.ErrIncompatibleValue { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that deleting a bucket on an existing non-bucket key returns an error. -func TestBucket_DeleteBucket_IncompatibleValue(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := widgets.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - if err := tx.Bucket([]byte("widgets")).DeleteBucket([]byte("foo")); err != bolt.ErrIncompatibleValue { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure bucket can set and update its sequence number. -func TestBucket_Sequence(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - bkt, err := tx.CreateBucket([]byte("0")) - if err != nil { - t.Fatal(err) - } - - // Retrieve sequence. - if v := bkt.Sequence(); v != 0 { - t.Fatalf("unexpected sequence: %d", v) - } - - // Update sequence. - if err := bkt.SetSequence(1000); err != nil { - t.Fatal(err) - } - - // Read sequence again. - if v := bkt.Sequence(); v != 1000 { - t.Fatalf("unexpected sequence: %d", v) - } - - return nil - }); err != nil { - t.Fatal(err) - } - - // Verify sequence in separate transaction. - if err := db.View(func(tx *bolt.Tx) error { - if v := tx.Bucket([]byte("0")).Sequence(); v != 1000 { - t.Fatalf("unexpected sequence: %d", v) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can return an autoincrementing sequence. -func TestBucket_NextSequence(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - widgets, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - woojits, err := tx.CreateBucket([]byte("woojits")) - if err != nil { - t.Fatal(err) - } - - // Make sure sequence increments. - if seq, err := widgets.NextSequence(); err != nil { - t.Fatal(err) - } else if seq != 1 { - t.Fatalf("unexpecte sequence: %d", seq) - } - - if seq, err := widgets.NextSequence(); err != nil { - t.Fatal(err) - } else if seq != 2 { - t.Fatalf("unexpected sequence: %d", seq) - } - - // Buckets should be separate. - if seq, err := woojits.NextSequence(); err != nil { - t.Fatal(err) - } else if seq != 1 { - t.Fatalf("unexpected sequence: %d", 1) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket will persist an autoincrementing sequence even if its -// the only thing updated on the bucket. -// https://github.com/boltdb/bolt/issues/296 -func TestBucket_NextSequence_Persist(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.Bucket([]byte("widgets")).NextSequence(); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - seq, err := tx.Bucket([]byte("widgets")).NextSequence() - if err != nil { - t.Fatalf("unexpected error: %s", err) - } else if seq != 2 { - t.Fatalf("unexpected sequence: %d", seq) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that retrieving the next sequence on a read-only bucket returns an error. -func TestBucket_NextSequence_ReadOnly(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.View(func(tx *bolt.Tx) error { - _, err := tx.Bucket([]byte("widgets")).NextSequence() - if err != bolt.ErrTxNotWritable { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that retrieving the next sequence for a bucket on a closed database return an error. -func TestBucket_NextSequence_Closed(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - tx, err := db.Begin(true) - if err != nil { - t.Fatal(err) - } - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := tx.Rollback(); err != nil { - t.Fatal(err) - } - if _, err := b.NextSequence(); err != bolt.ErrTxClosed { - t.Fatal(err) - } -} - -// Ensure a user can loop over all key/value pairs in a bucket. -func TestBucket_ForEach(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("0000")); err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("baz"), []byte("0001")); err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("bar"), []byte("0002")); err != nil { - t.Fatal(err) - } - - var index int - if err := b.ForEach(func(k, v []byte) error { - switch index { - case 0: - if !bytes.Equal(k, []byte("bar")) { - t.Fatalf("unexpected key: %v", k) - } else if !bytes.Equal(v, []byte("0002")) { - t.Fatalf("unexpected value: %v", v) - } - case 1: - if !bytes.Equal(k, []byte("baz")) { - t.Fatalf("unexpected key: %v", k) - } else if !bytes.Equal(v, []byte("0001")) { - t.Fatalf("unexpected value: %v", v) - } - case 2: - if !bytes.Equal(k, []byte("foo")) { - t.Fatalf("unexpected key: %v", k) - } else if !bytes.Equal(v, []byte("0000")) { - t.Fatalf("unexpected value: %v", v) - } - } - index++ - return nil - }); err != nil { - t.Fatal(err) - } - - if index != 3 { - t.Fatalf("unexpected index: %d", index) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure a database can stop iteration early. -func TestBucket_ForEach_ShortCircuit(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("bar"), []byte("0000")); err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("baz"), []byte("0000")); err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("0000")); err != nil { - t.Fatal(err) - } - - var index int - if err := tx.Bucket([]byte("widgets")).ForEach(func(k, v []byte) error { - index++ - if bytes.Equal(k, []byte("baz")) { - return errors.New("marker") - } - return nil - }); err == nil || err.Error() != "marker" { - t.Fatalf("unexpected error: %s", err) - } - if index != 2 { - t.Fatalf("unexpected index: %d", index) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that looping over a bucket on a closed database returns an error. -func TestBucket_ForEach_Closed(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - tx, err := db.Begin(true) - if err != nil { - t.Fatal(err) - } - - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - - if err := tx.Rollback(); err != nil { - t.Fatal(err) - } - - if err := b.ForEach(func(k, v []byte) error { return nil }); err != bolt.ErrTxClosed { - t.Fatalf("unexpected error: %s", err) - } -} - -// Ensure that an error is returned when inserting with an empty key. -func TestBucket_Put_EmptyKey(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte(""), []byte("bar")); err != bolt.ErrKeyRequired { - t.Fatalf("unexpected error: %s", err) - } - if err := b.Put(nil, []byte("bar")); err != bolt.ErrKeyRequired { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that an error is returned when inserting with a key that's too large. -func TestBucket_Put_KeyTooLarge(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put(make([]byte, 32769), []byte("bar")); err != bolt.ErrKeyTooLarge { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that an error is returned when inserting a value that's too large. -func TestBucket_Put_ValueTooLarge(t *testing.T) { - // Skip this test on DroneCI because the machine is resource constrained. - if os.Getenv("DRONE") == "true" { - t.Skip("not enough RAM for test") - } - - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), make([]byte, bolt.MaxValueSize+1)); err != bolt.ErrValueTooLarge { - t.Fatalf("unexpected error: %s", err) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure a bucket can calculate stats. -func TestBucket_Stats(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - // Add bucket with fewer keys but one big value. - bigKey := []byte("really-big-value") - for i := 0; i < 500; i++ { - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucketIfNotExists([]byte("woojits")) - if err != nil { - t.Fatal(err) - } - - if err := b.Put([]byte(fmt.Sprintf("%03d", i)), []byte(strconv.Itoa(i))); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - } - if err := db.Update(func(tx *bolt.Tx) error { - if err := tx.Bucket([]byte("woojits")).Put(bigKey, []byte(strings.Repeat("*", 10000))); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - db.MustCheck() - - if err := db.View(func(tx *bolt.Tx) error { - stats := tx.Bucket([]byte("woojits")).Stats() - if stats.BranchPageN != 1 { - t.Fatalf("unexpected BranchPageN: %d", stats.BranchPageN) - } else if stats.BranchOverflowN != 0 { - t.Fatalf("unexpected BranchOverflowN: %d", stats.BranchOverflowN) - } else if stats.LeafPageN != 7 { - t.Fatalf("unexpected LeafPageN: %d", stats.LeafPageN) - } else if stats.LeafOverflowN != 2 { - t.Fatalf("unexpected LeafOverflowN: %d", stats.LeafOverflowN) - } else if stats.KeyN != 501 { - t.Fatalf("unexpected KeyN: %d", stats.KeyN) - } else if stats.Depth != 2 { - t.Fatalf("unexpected Depth: %d", stats.Depth) - } - - branchInuse := 16 // branch page header - branchInuse += 7 * 16 // branch elements - branchInuse += 7 * 3 // branch keys (6 3-byte keys) - if stats.BranchInuse != branchInuse { - t.Fatalf("unexpected BranchInuse: %d", stats.BranchInuse) - } - - leafInuse := 7 * 16 // leaf page header - leafInuse += 501 * 16 // leaf elements - leafInuse += 500*3 + len(bigKey) // leaf keys - leafInuse += 1*10 + 2*90 + 3*400 + 10000 // leaf values - if stats.LeafInuse != leafInuse { - t.Fatalf("unexpected LeafInuse: %d", stats.LeafInuse) - } - - // Only check allocations for 4KB pages. - if os.Getpagesize() == 4096 { - if stats.BranchAlloc != 4096 { - t.Fatalf("unexpected BranchAlloc: %d", stats.BranchAlloc) - } else if stats.LeafAlloc != 36864 { - t.Fatalf("unexpected LeafAlloc: %d", stats.LeafAlloc) - } - } - - if stats.BucketN != 1 { - t.Fatalf("unexpected BucketN: %d", stats.BucketN) - } else if stats.InlineBucketN != 0 { - t.Fatalf("unexpected InlineBucketN: %d", stats.InlineBucketN) - } else if stats.InlineBucketInuse != 0 { - t.Fatalf("unexpected InlineBucketInuse: %d", stats.InlineBucketInuse) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure a bucket with random insertion utilizes fill percentage correctly. -func TestBucket_Stats_RandomFill(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } else if os.Getpagesize() != 4096 { - t.Skip("invalid page size for test") - } - - db := MustOpenDB() - defer db.MustClose() - - // Add a set of values in random order. It will be the same random - // order so we can maintain consistency between test runs. - var count int - rand := rand.New(rand.NewSource(42)) - for _, i := range rand.Perm(1000) { - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucketIfNotExists([]byte("woojits")) - if err != nil { - t.Fatal(err) - } - b.FillPercent = 0.9 - for _, j := range rand.Perm(100) { - index := (j * 10000) + i - if err := b.Put([]byte(fmt.Sprintf("%d000000000000000", index)), []byte("0000000000")); err != nil { - t.Fatal(err) - } - count++ - } - return nil - }); err != nil { - t.Fatal(err) - } - } - - db.MustCheck() - - if err := db.View(func(tx *bolt.Tx) error { - stats := tx.Bucket([]byte("woojits")).Stats() - if stats.KeyN != 100000 { - t.Fatalf("unexpected KeyN: %d", stats.KeyN) - } - - if stats.BranchPageN != 98 { - t.Fatalf("unexpected BranchPageN: %d", stats.BranchPageN) - } else if stats.BranchOverflowN != 0 { - t.Fatalf("unexpected BranchOverflowN: %d", stats.BranchOverflowN) - } else if stats.BranchInuse != 130984 { - t.Fatalf("unexpected BranchInuse: %d", stats.BranchInuse) - } else if stats.BranchAlloc != 401408 { - t.Fatalf("unexpected BranchAlloc: %d", stats.BranchAlloc) - } - - if stats.LeafPageN != 3412 { - t.Fatalf("unexpected LeafPageN: %d", stats.LeafPageN) - } else if stats.LeafOverflowN != 0 { - t.Fatalf("unexpected LeafOverflowN: %d", stats.LeafOverflowN) - } else if stats.LeafInuse != 4742482 { - t.Fatalf("unexpected LeafInuse: %d", stats.LeafInuse) - } else if stats.LeafAlloc != 13975552 { - t.Fatalf("unexpected LeafAlloc: %d", stats.LeafAlloc) - } - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure a bucket can calculate stats. -func TestBucket_Stats_Small(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - // Add a bucket that fits on a single root leaf. - b, err := tx.CreateBucket([]byte("whozawhats")) - if err != nil { - t.Fatal(err) - } - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - t.Fatal(err) - } - - return nil - }); err != nil { - t.Fatal(err) - } - - db.MustCheck() - - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("whozawhats")) - stats := b.Stats() - if stats.BranchPageN != 0 { - t.Fatalf("unexpected BranchPageN: %d", stats.BranchPageN) - } else if stats.BranchOverflowN != 0 { - t.Fatalf("unexpected BranchOverflowN: %d", stats.BranchOverflowN) - } else if stats.LeafPageN != 0 { - t.Fatalf("unexpected LeafPageN: %d", stats.LeafPageN) - } else if stats.LeafOverflowN != 0 { - t.Fatalf("unexpected LeafOverflowN: %d", stats.LeafOverflowN) - } else if stats.KeyN != 1 { - t.Fatalf("unexpected KeyN: %d", stats.KeyN) - } else if stats.Depth != 1 { - t.Fatalf("unexpected Depth: %d", stats.Depth) - } else if stats.BranchInuse != 0 { - t.Fatalf("unexpected BranchInuse: %d", stats.BranchInuse) - } else if stats.LeafInuse != 0 { - t.Fatalf("unexpected LeafInuse: %d", stats.LeafInuse) - } - - if os.Getpagesize() == 4096 { - if stats.BranchAlloc != 0 { - t.Fatalf("unexpected BranchAlloc: %d", stats.BranchAlloc) - } else if stats.LeafAlloc != 0 { - t.Fatalf("unexpected LeafAlloc: %d", stats.LeafAlloc) - } - } - - if stats.BucketN != 1 { - t.Fatalf("unexpected BucketN: %d", stats.BucketN) - } else if stats.InlineBucketN != 1 { - t.Fatalf("unexpected InlineBucketN: %d", stats.InlineBucketN) - } else if stats.InlineBucketInuse != 16+16+6 { - t.Fatalf("unexpected InlineBucketInuse: %d", stats.InlineBucketInuse) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -func TestBucket_Stats_EmptyBucket(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - // Add a bucket that fits on a single root leaf. - if _, err := tx.CreateBucket([]byte("whozawhats")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - db.MustCheck() - - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("whozawhats")) - stats := b.Stats() - if stats.BranchPageN != 0 { - t.Fatalf("unexpected BranchPageN: %d", stats.BranchPageN) - } else if stats.BranchOverflowN != 0 { - t.Fatalf("unexpected BranchOverflowN: %d", stats.BranchOverflowN) - } else if stats.LeafPageN != 0 { - t.Fatalf("unexpected LeafPageN: %d", stats.LeafPageN) - } else if stats.LeafOverflowN != 0 { - t.Fatalf("unexpected LeafOverflowN: %d", stats.LeafOverflowN) - } else if stats.KeyN != 0 { - t.Fatalf("unexpected KeyN: %d", stats.KeyN) - } else if stats.Depth != 1 { - t.Fatalf("unexpected Depth: %d", stats.Depth) - } else if stats.BranchInuse != 0 { - t.Fatalf("unexpected BranchInuse: %d", stats.BranchInuse) - } else if stats.LeafInuse != 0 { - t.Fatalf("unexpected LeafInuse: %d", stats.LeafInuse) - } - - if os.Getpagesize() == 4096 { - if stats.BranchAlloc != 0 { - t.Fatalf("unexpected BranchAlloc: %d", stats.BranchAlloc) - } else if stats.LeafAlloc != 0 { - t.Fatalf("unexpected LeafAlloc: %d", stats.LeafAlloc) - } - } - - if stats.BucketN != 1 { - t.Fatalf("unexpected BucketN: %d", stats.BucketN) - } else if stats.InlineBucketN != 1 { - t.Fatalf("unexpected InlineBucketN: %d", stats.InlineBucketN) - } else if stats.InlineBucketInuse != 16 { - t.Fatalf("unexpected InlineBucketInuse: %d", stats.InlineBucketInuse) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure a bucket can calculate stats. -func TestBucket_Stats_Nested(t *testing.T) { - db := MustOpenDB() - defer db.MustClose() - - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("foo")) - if err != nil { - t.Fatal(err) - } - for i := 0; i < 100; i++ { - if err := b.Put([]byte(fmt.Sprintf("%02d", i)), []byte(fmt.Sprintf("%02d", i))); err != nil { - t.Fatal(err) - } - } - - bar, err := b.CreateBucket([]byte("bar")) - if err != nil { - t.Fatal(err) - } - for i := 0; i < 10; i++ { - if err := bar.Put([]byte(strconv.Itoa(i)), []byte(strconv.Itoa(i))); err != nil { - t.Fatal(err) - } - } - - baz, err := bar.CreateBucket([]byte("baz")) - if err != nil { - t.Fatal(err) - } - for i := 0; i < 10; i++ { - if err := baz.Put([]byte(strconv.Itoa(i)), []byte(strconv.Itoa(i))); err != nil { - t.Fatal(err) - } - } - - return nil - }); err != nil { - t.Fatal(err) - } - - db.MustCheck() - - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("foo")) - stats := b.Stats() - if stats.BranchPageN != 0 { - t.Fatalf("unexpected BranchPageN: %d", stats.BranchPageN) - } else if stats.BranchOverflowN != 0 { - t.Fatalf("unexpected BranchOverflowN: %d", stats.BranchOverflowN) - } else if stats.LeafPageN != 2 { - t.Fatalf("unexpected LeafPageN: %d", stats.LeafPageN) - } else if stats.LeafOverflowN != 0 { - t.Fatalf("unexpected LeafOverflowN: %d", stats.LeafOverflowN) - } else if stats.KeyN != 122 { - t.Fatalf("unexpected KeyN: %d", stats.KeyN) - } else if stats.Depth != 3 { - t.Fatalf("unexpected Depth: %d", stats.Depth) - } else if stats.BranchInuse != 0 { - t.Fatalf("unexpected BranchInuse: %d", stats.BranchInuse) - } - - foo := 16 // foo (pghdr) - foo += 101 * 16 // foo leaf elements - foo += 100*2 + 100*2 // foo leaf key/values - foo += 3 + 16 // foo -> bar key/value - - bar := 16 // bar (pghdr) - bar += 11 * 16 // bar leaf elements - bar += 10 + 10 // bar leaf key/values - bar += 3 + 16 // bar -> baz key/value - - baz := 16 // baz (inline) (pghdr) - baz += 10 * 16 // baz leaf elements - baz += 10 + 10 // baz leaf key/values - - if stats.LeafInuse != foo+bar+baz { - t.Fatalf("unexpected LeafInuse: %d", stats.LeafInuse) - } - - if os.Getpagesize() == 4096 { - if stats.BranchAlloc != 0 { - t.Fatalf("unexpected BranchAlloc: %d", stats.BranchAlloc) - } else if stats.LeafAlloc != 8192 { - t.Fatalf("unexpected LeafAlloc: %d", stats.LeafAlloc) - } - } - - if stats.BucketN != 3 { - t.Fatalf("unexpected BucketN: %d", stats.BucketN) - } else if stats.InlineBucketN != 1 { - t.Fatalf("unexpected InlineBucketN: %d", stats.InlineBucketN) - } else if stats.InlineBucketInuse != baz { - t.Fatalf("unexpected InlineBucketInuse: %d", stats.InlineBucketInuse) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure a large bucket can calculate stats. -func TestBucket_Stats_Large(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } - - db := MustOpenDB() - defer db.MustClose() - - var index int - for i := 0; i < 100; i++ { - // Add bucket with lots of keys. - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucketIfNotExists([]byte("widgets")) - if err != nil { - t.Fatal(err) - } - for i := 0; i < 1000; i++ { - if err := b.Put([]byte(strconv.Itoa(index)), []byte(strconv.Itoa(index))); err != nil { - t.Fatal(err) - } - index++ - } - return nil - }); err != nil { - t.Fatal(err) - } - } - - db.MustCheck() - - if err := db.View(func(tx *bolt.Tx) error { - stats := tx.Bucket([]byte("widgets")).Stats() - if stats.BranchPageN != 13 { - t.Fatalf("unexpected BranchPageN: %d", stats.BranchPageN) - } else if stats.BranchOverflowN != 0 { - t.Fatalf("unexpected BranchOverflowN: %d", stats.BranchOverflowN) - } else if stats.LeafPageN != 1196 { - t.Fatalf("unexpected LeafPageN: %d", stats.LeafPageN) - } else if stats.LeafOverflowN != 0 { - t.Fatalf("unexpected LeafOverflowN: %d", stats.LeafOverflowN) - } else if stats.KeyN != 100000 { - t.Fatalf("unexpected KeyN: %d", stats.KeyN) - } else if stats.Depth != 3 { - t.Fatalf("unexpected Depth: %d", stats.Depth) - } else if stats.BranchInuse != 25257 { - t.Fatalf("unexpected BranchInuse: %d", stats.BranchInuse) - } else if stats.LeafInuse != 2596916 { - t.Fatalf("unexpected LeafInuse: %d", stats.LeafInuse) - } - - if os.Getpagesize() == 4096 { - if stats.BranchAlloc != 53248 { - t.Fatalf("unexpected BranchAlloc: %d", stats.BranchAlloc) - } else if stats.LeafAlloc != 4898816 { - t.Fatalf("unexpected LeafAlloc: %d", stats.LeafAlloc) - } - } - - if stats.BucketN != 1 { - t.Fatalf("unexpected BucketN: %d", stats.BucketN) - } else if stats.InlineBucketN != 0 { - t.Fatalf("unexpected InlineBucketN: %d", stats.InlineBucketN) - } else if stats.InlineBucketInuse != 0 { - t.Fatalf("unexpected InlineBucketInuse: %d", stats.InlineBucketInuse) - } - - return nil - }); err != nil { - t.Fatal(err) - } -} - -// Ensure that a bucket can write random keys and values across multiple transactions. -func TestBucket_Put_Single(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } - - index := 0 - if err := quick.Check(func(items testdata) bool { - db := MustOpenDB() - defer db.MustClose() - - m := make(map[string][]byte) - - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - for _, item := range items { - if err := db.Update(func(tx *bolt.Tx) error { - if err := tx.Bucket([]byte("widgets")).Put(item.Key, item.Value); err != nil { - panic("put error: " + err.Error()) - } - m[string(item.Key)] = item.Value - return nil - }); err != nil { - t.Fatal(err) - } - - // Verify all key/values so far. - if err := db.View(func(tx *bolt.Tx) error { - i := 0 - for k, v := range m { - value := tx.Bucket([]byte("widgets")).Get([]byte(k)) - if !bytes.Equal(value, v) { - t.Logf("value mismatch [run %d] (%d of %d):\nkey: %x\ngot: %x\nexp: %x", index, i, len(m), []byte(k), value, v) - db.CopyTempFile() - t.FailNow() - } - i++ - } - return nil - }); err != nil { - t.Fatal(err) - } - } - - index++ - return true - }, nil); err != nil { - t.Error(err) - } -} - -// Ensure that a transaction can insert multiple key/value pairs at once. -func TestBucket_Put_Multiple(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } - - if err := quick.Check(func(items testdata) bool { - db := MustOpenDB() - defer db.MustClose() - - // Bulk insert all values. - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - for _, item := range items { - if err := b.Put(item.Key, item.Value); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - - // Verify all items exist. - if err := db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - for _, item := range items { - value := b.Get(item.Key) - if !bytes.Equal(item.Value, value) { - db.CopyTempFile() - t.Fatalf("exp=%x; got=%x", item.Value, value) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - - return true - }, qconfig()); err != nil { - t.Error(err) - } -} - -// Ensure that a transaction can delete all key/value pairs and return to a single leaf page. -func TestBucket_Delete_Quick(t *testing.T) { - if testing.Short() { - t.Skip("skipping test in short mode.") - } - - if err := quick.Check(func(items testdata) bool { - db := MustOpenDB() - defer db.MustClose() - - // Bulk insert all values. - if err := db.Update(func(tx *bolt.Tx) error { - if _, err := tx.CreateBucket([]byte("widgets")); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - if err := db.Update(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("widgets")) - for _, item := range items { - if err := b.Put(item.Key, item.Value); err != nil { - t.Fatal(err) - } - } - return nil - }); err != nil { - t.Fatal(err) - } - - // Remove items one at a time and check consistency. - for _, item := range items { - if err := db.Update(func(tx *bolt.Tx) error { - return tx.Bucket([]byte("widgets")).Delete(item.Key) - }); err != nil { - t.Fatal(err) - } - } - - // Anything before our deletion index should be nil. - if err := db.View(func(tx *bolt.Tx) error { - if err := tx.Bucket([]byte("widgets")).ForEach(func(k, v []byte) error { - t.Fatalf("bucket should be empty; found: %06x", trunc(k, 3)) - return nil - }); err != nil { - t.Fatal(err) - } - return nil - }); err != nil { - t.Fatal(err) - } - - return true - }, qconfig()); err != nil { - t.Error(err) - } -} - -func ExampleBucket_Put() { - // Open the database. - db, err := bolt.Open(tempfile(), 0666, nil) - if err != nil { - log.Fatal(err) - } - defer os.Remove(db.Path()) - - // Start a write transaction. - if err := db.Update(func(tx *bolt.Tx) error { - // Create a bucket. - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - return err - } - - // Set the value "bar" for the key "foo". - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - return err - } - return nil - }); err != nil { - log.Fatal(err) - } - - // Read value back in a different read-only transaction. - if err := db.View(func(tx *bolt.Tx) error { - value := tx.Bucket([]byte("widgets")).Get([]byte("foo")) - fmt.Printf("The value of 'foo' is: %s\n", value) - return nil - }); err != nil { - log.Fatal(err) - } - - // Close database to release file lock. - if err := db.Close(); err != nil { - log.Fatal(err) - } - - // Output: - // The value of 'foo' is: bar -} - -func ExampleBucket_Delete() { - // Open the database. - db, err := bolt.Open(tempfile(), 0666, nil) - if err != nil { - log.Fatal(err) - } - defer os.Remove(db.Path()) - - // Start a write transaction. - if err := db.Update(func(tx *bolt.Tx) error { - // Create a bucket. - b, err := tx.CreateBucket([]byte("widgets")) - if err != nil { - return err - } - - // Set the value "bar" for the key "foo". - if err := b.Put([]byte("foo"), []byte("bar")); err != nil { - return err - } - - // Retrieve the key back from the database and verify it. - value := b.Get([]byte("foo")) - fmt.Printf("The value of 'foo' was: %s\n", value) - - return nil - }); err != nil { - log.Fatal(err) - } - - // Delete the key in a different write transaction. - if err := db.Update(func(tx *bolt.Tx) error { - return tx.Bucket([]byte("widgets")).Delete([]byte("foo")) - }); err != nil { - log.Fatal(err) - } - - // Retrieve the key again. - if err := db.View(func(tx *bolt.Tx) error { - value := tx.Bucket([]byte("widgets")).Get([]byte("foo")) - if value == nil { - fmt.Printf("The value of 'foo' is now: nil\n") - } - return nil - }); err != nil { - log.Fatal(err) - } - - // Close database to release file lock. - if err := db.Close(); err != nil { - log.Fatal(err) - } - - // Output: - // The value of 'foo' was: bar - // The value of 'foo' is now: nil -} - -func ExampleBucket_ForEach() { - // Open the database. - db, err := bolt.Open(tempfile(), 0666, nil) - if err != nil { - log.Fatal(err) - } - defer os.Remove(db.Path()) - - // Insert data into a bucket. - if err := db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("animals")) - if err != nil { - return err - } - - if err := b.Put([]byte("dog"), []byte("fun")); err != nil { - return err - } - if err := b.Put([]byte("cat"), []byte("lame")); err != nil { - return err - } - if err := b.Put([]byte("liger"), []byte("awesome")); err != nil { - return err - } - - // Iterate over items in sorted key order. - if err := b.ForEach(func(k, v []byte) error { - fmt.Printf("A %s is %s.\n", k, v) - return nil - }); err != nil { - return err - } - - return nil - }); err != nil { - log.Fatal(err) - } - - // Close database to release file lock. - if err := db.Close(); err != nil { - log.Fatal(err) - } - - // Output: - // A cat is lame. - // A dog is fun. - // A liger is awesome. -} |