Implement package-local tests

backend/local/backend_test.go

@@ -0,0 +1,20 @@
+// DO NOT EDIT!
+// generated at 2016-23-01 17:06:38 +0100 CET
+package local_test
+
+import (
+	"testing"
+
+	"github.com/restic/restic/backend/test"
+)
+
+func TestCreate(t *testing.T)    { test.Create(t) }
+func TestOpen(t *testing.T)      { test.Open(t) }
+func TestLocation(t *testing.T)  { test.Location(t) }
+func TestConfig(t *testing.T)    { test.Config(t) }
+func TestGetReader(t *testing.T) { test.GetReader(t) }
+func TestLoad(t *testing.T)      { test.Load(t) }
+func TestWrite(t *testing.T)     { test.Write(t) }
+func TestGeneric(t *testing.T)   { test.Generic(t) }
+func TestDelete(t *testing.T)    { test.Delete(t) }
+func TestCleanup(t *testing.T)   { test.Cleanup(t) }

backend/local/local.go

@@ -226,6 +226,10 @@ func (b *Local) GetReader(t backend.Type, name string, offset, length uint) (io.
 // Load returns the data stored in the backend for h at the given offset
 // and saves it in p. Load has the same semantics as io.ReaderAt.
 func (b *Local) Load(h backend.Handle, p []byte, off int64) (n int, err error) {
+	if err := h.Valid(); err != nil {
+		return 0, err
+	}
+
 	f, err := os.Open(filename(b.p, h.Type, h.Name))
 	if err != nil {
 		return 0, err

backend/local/local_test.go

@@ -0,0 +1,53 @@
+package local_test
+
+import (
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	"github.com/restic/restic/backend"
+	"github.com/restic/restic/backend/local"
+	"github.com/restic/restic/backend/test"
+)
+
+var tempBackendDir string
+
+//go:generate go run ../test/generate_backend_tests.go
+
+func init() {
+	test.CreateFn = func() (backend.Backend, error) {
+		if tempBackendDir != "" {
+			return nil, errors.New("temporary local backend dir already exists")
+		}
+
+		tempdir, err := ioutil.TempDir("", "restic-local-test-")
+		if err != nil {
+			return nil, err
+		}
+
+		fmt.Printf("created new test backend at %v\n", tempdir)
+		tempBackendDir = tempdir
+
+		return local.Create(tempdir)
+	}
+
+	test.OpenFn = func() (backend.Backend, error) {
+		if tempBackendDir == "" {
+			return nil, errors.New("repository not initialized")
+		}
+
+		return local.Open(tempBackendDir)
+	}
+
+	test.CleanupFn = func() error {
+		if tempBackendDir == "" {
+			return nil
+		}
+
+		fmt.Printf("removing test backend at %v\n", tempBackendDir)
+		err := os.RemoveAll(tempBackendDir)
+		tempBackendDir = ""
+		return err
+	}
+}