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testutils.go
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testutils.go
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/*
* Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved.
*
* 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 testutils
import (
"reflect"
"runtime"
"testing"
"unsafe"
)
// RequireLinux checks if
func RequireLinux(t *testing.T) {
t.Helper()
if runtime.GOOS != "linux" {
t.Skipf("Test is not supported on %q", runtime.GOOS)
}
}
// GetStructPrivateFieldValue returns private field value
func GetStructPrivateFieldValue[T any](t *testing.T, v any, fieldName string) T {
t.Helper()
var result T
value := reflect.ValueOf(v)
if value.Kind() == reflect.Ptr {
value = value.Elem()
}
if value.Kind() != reflect.Struct {
t.Errorf("The type %s is not stuct", value.Type())
return result
}
fieldVal := value.FieldByName(fieldName)
if !fieldVal.IsValid() {
t.Errorf("The field %s is invalid for the %s type", fieldName, value.Type())
return result
}
fieldPtr := unsafe.Pointer(fieldVal.UnsafeAddr())
// Cast the field pointer to a pointer of the correct type
realPtr := (*T)(fieldPtr)
return *realPtr
}