Update test generate script, add tests to membackend

backend/test/tests_test.go

@@ -1,3 +1,37 @@
-package test
+package test_test
 
-// func Test
+import (
+	"errors"
+
+	"github.com/restic/restic/backend"
+	"github.com/restic/restic/backend/test"
+)
+
+var be backend.Backend
+
+//go:generate go run ../test/generate_backend_tests.go
+
+func init() {
+	test.CreateFn = func() (backend.Backend, error) {
+		if be != nil {
+			return nil, errors.New("temporary memory backend dir already exists")
+		}
+
+		be = backend.NewMemoryBackend()
+
+		return be, nil
+	}
+
+	test.OpenFn = func() (backend.Backend, error) {
+		if be == nil {
+			return nil, errors.New("repository not initialized")
+		}
+
+		return be, nil
+	}
+
+	test.CleanupFn = func() error {
+		be = nil
+		return nil
+	}
+}