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119 lines
2.4 KiB
119 lines
2.4 KiB
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"os"
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"testing"
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"github.com/codegangsta/cli"
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"github.com/kubernetes/helm/pkg/format"
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)
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type testHelmData struct {
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t *testing.T
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mux *http.ServeMux
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server *httptest.Server
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app *cli.App
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output string
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}
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func testHelm(t *testing.T) *testHelmData {
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th := &testHelmData{t: t}
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th.app = cli.NewApp()
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th.app.Commands = commands
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th.app.Flags = []cli.Flag{
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cli.StringFlag{
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Name: "host,u",
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Value: "https://localhost:8000/",
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},
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cli.IntFlag{
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Name: "timeout",
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Value: 10,
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},
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cli.BoolFlag{
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Name: "debug",
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},
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}
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th.app.Before = func(c *cli.Context) error {
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debug = c.GlobalBool("debug")
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return nil
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}
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th.mux = http.NewServeMux()
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th.server = httptest.NewServer(th.mux)
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return th
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}
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func (th *testHelmData) cleanup() {
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th.server.Close()
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}
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func (th *testHelmData) URL() string {
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return th.server.URL
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}
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// must gives a fatal error if err is not nil.
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func (th *testHelmData) must(err error) {
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if err != nil {
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th.t.Fatal(err)
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}
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}
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// check gives a test non-fatal error if err is not nil.
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func (th *testHelmData) check(err error) {
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if err != nil {
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th.t.Error(err)
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}
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}
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func (th *testHelmData) run(args ...string) {
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th.output = ""
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args = append([]string{"helm", "--host", th.URL()}, args...)
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th.output = captureOutput(func() {
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th.app.Run(args)
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})
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}
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// captureOutput redirect all log/std streams, capture and replace
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func captureOutput(fn func()) string {
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osStdout, osStderr := os.Stdout, os.Stderr
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logStdout, logStderr := format.Stdout, format.Stderr
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defer func() {
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os.Stdout, os.Stderr = osStdout, osStderr
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format.Stdout, format.Stderr = logStdout, logStderr
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}()
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r, w, _ := os.Pipe()
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os.Stdout, os.Stderr = w, w
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format.Stdout, format.Stderr = w, w
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fn()
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// read test output and restore previous stdout
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w.Close()
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b, _ := ioutil.ReadAll(r)
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return string(b)
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}
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