grpc-go/internal/testutils/xds_bootstrap.go

53 lines
1.5 KiB
Go

/*
*
* Copyright 2024 gRPC 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 testutils
import (
"os"
"testing"
"google.golang.org/grpc/internal/envconfig"
)
// CreateBootstrapFileForTesting creates a temporary file with the provided
// bootstrap contents, and updates the bootstrap environment variable to point
// to this file.
//
// Registers a cleanup function on the provided testing.T, that deletes the
// temporary file and resets the bootstrap environment variable.
func CreateBootstrapFileForTesting(t *testing.T, bootstrapContents []byte) {
t.Helper()
f, err := os.CreateTemp("", "test_xds_bootstrap_*")
if err != nil {
t.Fatalf("Failed to created bootstrap file: %v", err)
}
if err := os.WriteFile(f.Name(), bootstrapContents, 0644); err != nil {
t.Fatalf("Failed to created bootstrap file: %v", err)
}
origBootstrapFileName := envconfig.XDSBootstrapFileName
envconfig.XDSBootstrapFileName = f.Name()
t.Cleanup(func() {
os.Remove(f.Name())
envconfig.XDSBootstrapFileName = origBootstrapFileName
})
}