swarm: network rewrite merge

swarm/storage/localstore_test.go

@@ -0,0 +1,118 @@
+// 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 storage
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+var (
+	hashfunc = MakeHashFunc(DefaultHash)
+)
+
+// tests that the content address validator correctly checks the data
+// tests that resource update chunks are passed through content address validator
+// the test checking the resouce update validator internal correctness is found in resource_test.go
+func TestValidator(t *testing.T) {
+	// set up localstore
+	datadir, err := ioutil.TempDir("", "storage-testvalidator")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(datadir)
+
+	params := NewDefaultLocalStoreParams()
+	params.Init(datadir)
+	store, err := NewLocalStore(params, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// check puts with no validators, both succeed
+	chunks := GenerateRandomChunks(259, 2)
+	goodChunk := chunks[0]
+	badChunk := chunks[1]
+	copy(badChunk.SData, goodChunk.SData)
+
+	PutChunks(store, goodChunk, badChunk)
+	if err := goodChunk.GetErrored(); err != nil {
+		t.Fatalf("expected no error on good content address chunk in spite of no validation, but got: %s", err)
+	}
+	if err := badChunk.GetErrored(); err != nil {
+		t.Fatalf("expected no error on bad content address chunk in spite of no validation, but got: %s", err)
+	}
+
+	// add content address validator and check puts
+	// bad should fail, good should pass
+	store.Validators = append(store.Validators, NewContentAddressValidator(hashfunc))
+	chunks = GenerateRandomChunks(DefaultChunkSize, 2)
+	goodChunk = chunks[0]
+	badChunk = chunks[1]
+	copy(badChunk.SData, goodChunk.SData)
+
+	PutChunks(store, goodChunk, badChunk)
+	if err := goodChunk.GetErrored(); err != nil {
+		t.Fatalf("expected no error on good content address chunk with content address validator only, but got: %s", err)
+	}
+	if err := badChunk.GetErrored(); err == nil {
+		t.Fatal("expected error on bad content address chunk with content address validator only, but got nil")
+	}
+
+	// append a validator that always denies
+	// bad should fail, good should pass,
+	var negV boolTestValidator
+	store.Validators = append(store.Validators, negV)
+
+	chunks = GenerateRandomChunks(DefaultChunkSize, 2)
+	goodChunk = chunks[0]
+	badChunk = chunks[1]
+	copy(badChunk.SData, goodChunk.SData)
+
+	PutChunks(store, goodChunk, badChunk)
+	if err := goodChunk.GetErrored(); err != nil {
+		t.Fatalf("expected no error on good content address chunk with content address validator only, but got: %s", err)
+	}
+	if err := badChunk.GetErrored(); err == nil {
+		t.Fatal("expected error on bad content address chunk with content address validator only, but got nil")
+	}
+
+	// append a validator that always approves
+	// all shall pass
+	var posV boolTestValidator = true
+	store.Validators = append(store.Validators, posV)
+
+	chunks = GenerateRandomChunks(DefaultChunkSize, 2)
+	goodChunk = chunks[0]
+	badChunk = chunks[1]
+	copy(badChunk.SData, goodChunk.SData)
+
+	PutChunks(store, goodChunk, badChunk)
+	if err := goodChunk.GetErrored(); err != nil {
+		t.Fatalf("expected no error on good content address chunk with content address validator only, but got: %s", err)
+	}
+	if err := badChunk.GetErrored(); err != nil {
+		t.Fatalf("expected no error on bad content address chunk with content address validator only, but got: %s", err)
+	}
+}
+
+type boolTestValidator bool
+
+func (self boolTestValidator) Validate(addr Address, data []byte) bool {
+	return bool(self)
+}