github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/sentry/fsimpl/ext/disklayout/test_utils.go (about)

     1  // Copyright 2019 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package disklayout
    16  
    17  import (
    18  	"reflect"
    19  	"testing"
    20  
    21  	"github.com/SagerNet/gvisor/pkg/marshal"
    22  )
    23  
    24  func assertSize(t *testing.T, v marshal.Marshallable, want int) {
    25  	t.Helper()
    26  
    27  	if got := v.SizeBytes(); got != want {
    28  		t.Errorf("struct %s should be exactly %d bytes but is %d bytes", reflect.TypeOf(v).Name(), want, got)
    29  	}
    30  }