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