Function TestBucket_Put_Large

bucket_test.go:173–204

Ensure that a bucket can write a bunch of large values.

(t *testing.T)

// Ensure that a bucket can write a bunch of large values.
func TestBucket_Put_Large(t *testing.T) {
	db := btesting.MustCreateDB(t)

	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) {