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opentelemetry-go/metric/alignment_test.go

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// Copyright The OpenTelemetry 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 metric
import (
"os"
"testing"
"unsafe"
"go.opentelemetry.io/otel/internal/internaltest"
)
// Ensure struct alignment prior to running tests.
func TestMain(m *testing.M) {
fields := []internaltest.FieldOffset{
{
Name: "Measurement.number",
Offset: unsafe.Offsetof(Measurement{}.number),
},
}
if !internaltest.Aligned8Byte(fields, os.Stderr) {
os.Exit(1)
}
os.Exit(m.Run())
}