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// Copyright 2019 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package disklayout
import (
"testing"
"gvisor.dev/gvisor/pkg/binary"
)
// TestBlockGroupSize tests the fact that the block group struct for
// 32-bit ext filesystems should be exactly 32 bytes big and for 64-bit fs it
// should be 64 bytes.
func TestBlockGroupSize(t *testing.T) {
if got, want := int(binary.Size(BlockGroup32Bit{})), 32; got != want {
t.Errorf("BlockGroup32Bit should be exactly 32 bytes but is %d bytes", got)
}
if got, want := int(binary.Size(BlockGroup64Bit{})), 64; got != want {
t.Errorf("BlockGroup64Bit should be exactly 64 bytes but is %d bytes", got)
}
}
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