Files
virtual-kubelet/errors/errors_test.go
Paulo Pires f031fc6d6b errors: use cpuguy83/strongerrors
Signed-off-by: Paulo Pires <pjpires@gmail.com>
2018-11-29 22:18:15 +00:00

74 lines
2.6 KiB
Go

// Copyright © 2017 The virtual-kubelet 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 errors
import (
goerrors "errors"
"testing"
"github.com/cpuguy83/strongerrors"
)
func TestUnknownFromRoot(t *testing.T) {
// Create a root cause.
// This represents an error returned by a function invocation.
err1 := goerrors.New("root cause")
// Create an error of type "Unknown" with err1 as the cause and containing an additional message.
err2 := Unknown(err1)
// Make sure that the resulting error is indeed of type "Unknown".
if !strongerrors.IsUnknown(err2) {
t.Fatal("expected err2 to be of type Unknown")
}
// Make sure that the error's message is equal to the root cause's message.
if err2.Error() != "root cause" {
t.Fatal("expected err2's error message to be equal to the root cause's message")
}
}
func TestUnknownFromRootCauseWithMessage(t *testing.T) {
// Create a root cause.
// This represents an error returned by a function invocation.
err1 := goerrors.New("root cause")
// Create an error of type "Unknown" with err1 as the cause and containing an additional message.
err2 := Unknown(err1, "extra info")
// Make sure that the resulting error is indeed of type "Unknown".
if !strongerrors.IsUnknown(err2) {
t.Fatal("expected err2 to be of type Unknown")
}
// Make sure that the message was adequately formatted.
if err2.Error() != "extra info: root cause" {
t.Fatal("expected err2 to be adequately formatted as a string")
}
}
func TestUnknownFromRootCauseWithMessageAndFormattingParameters(t *testing.T) {
// Create a root cause.
// This represents an error returned by a function invocation.
err1 := goerrors.New("root cause")
// Create an error of type "Unknown" with err1 as the cause and containing an additional message.
err2 := Unknown(err1, "expected %d, got %d", 0, 1)
// Make sure that the resulting error is indeed of type "Unknown".
if !strongerrors.IsUnknown(err2) {
t.Fatal("expected err2 to be of type Unknown")
}
// Make sure that the message was adequately formatted.
if err2.Error() != "expected 0, got 1: root cause" {
t.Fatal("expected err2 to be adequately formatted as a string")
}
}