Commit e4ae30f5 authored by Russ Cox's avatar Russ Cox

errors: new package

The only function is errors.New, at least for now.

R=r, gustavo, adg, r
CC=golang-dev
https://golang.org/cl/5321061
parent 2a0e15d3
......@@ -75,6 +75,7 @@ DIRS=\
encoding/git85\
encoding/hex\
encoding/pem\
errors\
exec\
exp/ebnf\
exp/ebnflint\
......
# Copyright 2011 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
include ../../Make.inc
TARG=errors
GOFILES=\
errors.go\
include ../../Make.pkg
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package errors implements functions to manipulate errors.
package errors
// New returns an error that formats as the given text.
func New(text string) error {
return &errorString{text}
}
// errorString is a trivial implementation of error.
type errorString struct {
s string
}
func (e *errorString) Error() string {
return e.s
}
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package errors_test
import (
. "errors"
"testing"
)
func TestNewEqual(t *testing.T) {
// Different allocations should not be equal.
if New("abc") == New("abc") {
t.Errorf(`New("abc") == New("abc")`)
}
if New("abc") == New("xyz") {
t.Errorf(`New("abc") == New("xyz")`)
}
// Same allocation should be equal to itself (not crash).
err := New("jkl")
if err != err {
t.Errorf(`err != err`)
}
}
func TestErrorMethod(t *testing.T) {
err := New("abc")
if err.Error() != "abc" {
t.Errorf(`New("abc").Error() = %q, want %q`, err.Error(), "abc")
}
}
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment