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author | Russ Cox <rsc@golang.org> | 2014-09-08 00:08:51 -0400 |
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committer | Russ Cox <rsc@golang.org> | 2014-09-08 00:08:51 -0400 |
commit | 8528da672cc093d4dd06732819abc1f7b6b5a46e (patch) | |
tree | 334be80d4a4c85b77db6f6fdb67cbf0528cba5f5 /src/errors/errors_test.go | |
parent | 73bcb69f272cbf34ddcc9daa56427a8683b5a95d (diff) | |
download | go-8528da672cc093d4dd06732819abc1f7b6b5a46e.tar.gz |
build: move package sources from src/pkg to src
Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
Diffstat (limited to 'src/errors/errors_test.go')
-rw-r--r-- | src/errors/errors_test.go | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/errors/errors_test.go b/src/errors/errors_test.go new file mode 100644 index 000000000..63c05d718 --- /dev/null +++ b/src/errors/errors_test.go @@ -0,0 +1,53 @@ +// 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" + "fmt" + "testing" +) + +func TestNewEqual(t *testing.T) { + // Different allocations should not be equal. + if errors.New("abc") == errors.New("abc") { + t.Errorf(`New("abc") == New("abc")`) + } + if errors.New("abc") == errors.New("xyz") { + t.Errorf(`New("abc") == New("xyz")`) + } + + // Same allocation should be equal to itself (not crash). + err := errors.New("jkl") + if err != err { + t.Errorf(`err != err`) + } +} + +func TestErrorMethod(t *testing.T) { + err := errors.New("abc") + if err.Error() != "abc" { + t.Errorf(`New("abc").Error() = %q, want %q`, err.Error(), "abc") + } +} + +func ExampleNew() { + err := errors.New("emit macho dwarf: elf header corrupted") + if err != nil { + fmt.Print(err) + } + // Output: emit macho dwarf: elf header corrupted +} + +// The fmt package's Errorf function lets us use the package's formatting +// features to create descriptive error messages. +func ExampleNew_errorf() { + const name, id = "bimmler", 17 + err := fmt.Errorf("user %q (id %d) not found", name, id) + if err != nil { + fmt.Print(err) + } + // Output: user "bimmler" (id 17) not found +} |