mirror of
https://github.com/golang/go
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199b70b426
+ Test. For background, see "http -> http2 -> http import cycle" thread on golang-dev. Change-Id: Idc422247e5935ef7615cd5e8b7e2c489f7f2bc31 Reviewed-on: https://go-review.googlesource.com/15850 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"io/ioutil"
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"os/exec"
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"runtime"
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"testing"
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"golang.org/x/tools/go/buildutil"
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)
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func TestBundle(t *testing.T) {
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load := func(name string) string {
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data, err := ioutil.ReadFile(name)
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if err != nil {
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t.Fatal(err)
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}
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return string(data)
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}
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ctxt = buildutil.FakeContext(map[string]map[string]string{
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"initial": {
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"a.go": load("testdata/src/initial/a.go"),
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"b.go": load("testdata/src/initial/b.go"),
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},
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"fmt": {
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"print.go": `package fmt; func Println(...interface{})`,
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},
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})
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var out bytes.Buffer
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if err := bundle(&out, "initial", "dest", "prefix"); err != nil {
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t.Fatal(err)
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}
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if got, want := out.String(), load("testdata/out.golden"); got != want {
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t.Errorf("-- got --\n%s\n-- want --\n%s\n-- diff --", got, want)
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if err := ioutil.WriteFile("testdata/out.got", out.Bytes(), 0644); err != nil {
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t.Fatal(err)
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}
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t.Log(diff("testdata/out.got", "testdata/out.golden"))
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}
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}
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func diff(a, b string) string {
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var cmd *exec.Cmd
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switch runtime.GOOS {
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case "plan9":
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cmd = exec.Command("/bin/diff", "-c", a, b)
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default:
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cmd = exec.Command("/usr/bin/diff", "-u", a, b)
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}
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var out bytes.Buffer
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cmd.Stdout = &out
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cmd.Stderr = &out
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cmd.Run() // nonzero exit is expected
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if out.Len() == 0 {
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return "(failed to compute diff)"
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}
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return out.String()
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}
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