90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
// Copyright 2023 PingCAP, Inc.
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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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//go:build intest || enableassert
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package intest
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import (
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"fmt"
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"reflect"
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)
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// EnableAssert checks if the assert function should work.
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const EnableAssert = true
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// Assert asserts a condition is true
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func Assert(cond bool, msgAndArgs ...any) {
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if EnableAssert && !cond {
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doPanic("", msgAndArgs...)
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}
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}
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// AssertNoError asserts an error is nil
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func AssertNoError(err error, msgAndArgs ...any) {
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if EnableAssert && err != nil {
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doPanic(fmt.Sprintf("error is not nil: %+v", err), msgAndArgs...)
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}
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}
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// AssertNotNil asserts an object is not nil
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func AssertNotNil(obj any, msgAndArgs ...any) {
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if EnableAssert {
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Assert(obj != nil, msgAndArgs...)
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value := reflect.ValueOf(obj)
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switch value.Kind() {
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case reflect.Func, reflect.Chan, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice, reflect.UnsafePointer:
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Assert(!value.IsNil(), msgAndArgs...)
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}
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}
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}
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// AssertFunc asserts a function condition
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func AssertFunc(fn func() bool, msgAndArgs ...any) {
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if EnableAssert {
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Assert(fn != nil, msgAndArgs...)
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Assert(fn(), msgAndArgs...)
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}
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}
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func doPanic(extraMsg string, userMsgAndArgs ...any) {
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panic(assertionFailedMsg(extraMsg, userMsgAndArgs...))
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}
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func assertionFailedMsg(extraMsg string, userMsgAndArgs ...any) string {
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msg := "assert failed"
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if len(userMsgAndArgs) == 0 {
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if extraMsg != "" {
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msg = fmt.Sprintf("%s, %s", msg, extraMsg)
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}
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return msg
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}
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if len(userMsgAndArgs) == 0 {
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return fmt.Sprintf("assert failed, %s", extraMsg)
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}
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userMsg, ok := userMsgAndArgs[0].(string)
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if !ok {
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userMsg = fmt.Sprintf("%+v", userMsgAndArgs[0])
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}
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msg = fmt.Sprintf("%s, %s", msg, userMsg)
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if extraMsg != "" {
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msg = fmt.Sprintf("%s, %s", msg, extraMsg)
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}
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return fmt.Sprintf(msg, userMsgAndArgs[1:]...)
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}
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