111 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			111 lines
		
	
	
		
			2.6 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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// TestStringField validates put and get operations
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// of the StringField.
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func TestStringField(t *testing.T) {
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	db, cleanupFunc := newTestDB(t)
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	defer cleanupFunc()
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	simpleString, err := db.NewStringField("simple-string")
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	if err != nil {
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		t.Fatal(err)
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	}
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	t.Run("get empty", func(t *testing.T) {
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		got, err := simpleString.Get()
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		if err != nil {
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			t.Fatal(err)
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		}
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		want := ""
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		if got != want {
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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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	t.Run("put", func(t *testing.T) {
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		want := "simple string value"
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		err = simpleString.Put(want)
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		if err != nil {
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			t.Fatal(err)
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		}
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		got, err := simpleString.Get()
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		if err != nil {
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			t.Fatal(err)
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		}
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		if got != want {
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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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			want := "overwritten string value"
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			err = simpleString.Put(want)
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			if err != nil {
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				t.Fatal(err)
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			}
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			got, err := simpleString.Get()
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			if err != nil {
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				t.Fatal(err)
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			}
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			if got != want {
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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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	t.Run("put in batch", func(t *testing.T) {
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		batch := new(leveldb.Batch)
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		want := "simple string batch value"
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		simpleString.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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		got, err := simpleString.Get()
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		if err != nil {
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			t.Fatal(err)
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		}
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		if got != want {
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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 := "overwritten string batch value"
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			simpleString.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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			got, err := simpleString.Get()
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			if err != nil {
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				t.Fatal(err)
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			}
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			if got != want {
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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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