mirror of
https://github.com/prometheus/prometheus.git
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84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
// The MIT License (MIT)
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// Copyright (c) 2014 Ben Johnson
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package testutil
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import (
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"fmt"
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"reflect"
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)
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// This package is imported by non-test code and therefore cannot import the
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// testing package, which has side effects such as adding flags. Hence we use an
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// interface to testing.{T,B}.
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type TB interface {
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Helper()
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Fatalf(string, ...interface{})
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}
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// Assert fails the test if the condition is false.
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func Assert(tb TB, condition bool, format string, a ...interface{}) {
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tb.Helper()
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if !condition {
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tb.Fatalf("\033[31m"+format+"\033[39m\n", a...)
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}
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}
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// Ok fails the test if an err is not nil.
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func Ok(tb TB, err error) {
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tb.Helper()
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if err != nil {
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tb.Fatalf("\033[31munexpected error: %v\033[39m\n", err)
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}
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}
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// NotOk fails the test if an err is nil.
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func NotOk(tb TB, err error, a ...interface{}) {
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tb.Helper()
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if err == nil {
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if len(a) != 0 {
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format := a[0].(string)
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tb.Fatalf("\033[31m"+format+": expected error, got none\033[39m", a...)
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}
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tb.Fatalf("\033[31mexpected error, got none\033[39m")
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}
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}
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// Equals fails the test if exp is not equal to act.
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func Equals(tb TB, exp, act interface{}, msgAndArgs ...interface{}) {
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tb.Helper()
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if !reflect.DeepEqual(exp, act) {
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tb.Fatalf("\033[31m%s\n\nexp: %#v\n\ngot: %#v%s\033[39m\n", formatMessage(msgAndArgs), exp, act)
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}
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}
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func formatMessage(msgAndArgs []interface{}) string {
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if len(msgAndArgs) == 0 {
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return ""
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}
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if msg, ok := msgAndArgs[0].(string); ok {
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return fmt.Sprintf("\n\nmsg: "+msg, msgAndArgs[1:]...)
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}
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return ""
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}
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