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// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package shed
import (
"testing"
"github.com/syndtr/goleveldb/leveldb"
)
// TestStructField validates put and get operations
// of the StructField.
func TestStructField(t *testing.T) {
db, cleanupFunc := newTestDB(t)
defer cleanupFunc()
complexField, err := db.NewStructField("complex-field")
if err != nil {
t.Fatal(err)
}
type complexStructure struct {
A string
}
t.Run("get empty", func(t *testing.T) {
var s complexStructure
err := complexField.Get(&s)
if err != leveldb.ErrNotFound {
t.Fatalf("got error %v, want %v", err, leveldb.ErrNotFound)
}
want := ""
if s.A != want {
t.Errorf("got string %q, want %q", s.A, want)
}
})
t.Run("put", func(t *testing.T) {
want := complexStructure{
A: "simple string value",
}
err = complexField.Put(want)
if err != nil {
t.Fatal(err)
}
var got complexStructure
err = complexField.Get(&got)
if err != nil {
t.Fatal(err)
}
if got.A != want.A {
t.Errorf("got string %q, want %q", got.A, want.A)
}
t.Run("overwrite", func(t *testing.T) {
want := complexStructure{
A: "overwritten string value",
}
err = complexField.Put(want)
if err != nil {
t.Fatal(err)
}
var got complexStructure
err = complexField.Get(&got)
if err != nil {
t.Fatal(err)
}
if got.A != want.A {
t.Errorf("got string %q, want %q", got.A, want.A)
}
})
})
t.Run("put in batch", func(t *testing.T) {
batch := new(leveldb.Batch)
want := complexStructure{
A: "simple string batch value",
}
complexField.PutInBatch(batch, want)
err = db.WriteBatch(batch)
if err != nil {
t.Fatal(err)
}
var got complexStructure
err := complexField.Get(&got)
if err != nil {
t.Fatal(err)
}
if got.A != want.A {
t.Errorf("got string %q, want %q", got, want)
}
t.Run("overwrite", func(t *testing.T) {
batch := new(leveldb.Batch)
want := complexStructure{
A: "overwritten string batch value",
}
complexField.PutInBatch(batch, want)
err = db.WriteBatch(batch)
if err != nil {
t.Fatal(err)
}
var got complexStructure
err := complexField.Get(&got)
if err != nil {
t.Fatal(err)
}
if got.A != want.A {
t.Errorf("got string %q, want %q", got, want)
}
})
})
}
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