mirror of
https://github.com/etcd-io/etcd.git
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81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright 2022 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package verify
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import (
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"fmt"
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"os"
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"strings"
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)
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const envVerify = "ETCD_VERIFY"
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type VerificationType string
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const (
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envVerifyValueAll VerificationType = "all"
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envVerifyValueAssert VerificationType = "assert"
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)
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func getEnvVerify() string {
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return strings.ToLower(os.Getenv(envVerify))
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}
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func IsVerificationEnabled(verification VerificationType) bool {
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env := getEnvVerify()
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return env == string(envVerifyValueAll) || env == strings.ToLower(string(verification))
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}
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// EnableVerifications sets `envVerify` and returns a function that
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// can be used to bring the original settings.
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func EnableVerifications(verification VerificationType) func() {
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previousEnv := getEnvVerify()
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os.Setenv(envVerify, string(verification))
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return func() {
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os.Setenv(envVerify, previousEnv)
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}
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}
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// EnableAllVerifications enables verification and returns a function
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// that can be used to bring the original settings.
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func EnableAllVerifications() func() {
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return EnableVerifications(envVerifyValueAll)
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}
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// DisableVerifications unsets `envVerify` and returns a function that
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// can be used to bring the original settings.
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func DisableVerifications() func() {
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previousEnv := getEnvVerify()
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os.Unsetenv(envVerify)
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return func() {
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os.Setenv(envVerify, previousEnv)
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}
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}
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// Verify performs verification if the assertions are enabled.
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// In the default setup running in tests and skipped in the production code.
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func Verify(f func()) {
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if IsVerificationEnabled(envVerifyValueAssert) {
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f()
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}
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}
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// Assert will panic with a given formatted message if the given condition is false.
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func Assert(condition bool, msg string, v ...any) {
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if !condition {
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panic(fmt.Sprintf("assertion failed: "+msg, v...))
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}
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}
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