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package testhelper
import (
"fmt"
"io/ioutil"
"os"
"path"
"runtime"
"time"
"github.com/otiai10/copy"
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
)
var (
TestRoot, _ = ioutil.TempDir("", "test-gitlab-shell")
)
func TempEnv(env map[string]string) func() {
var original = make(map[string]string)
for key, value := range env {
original[key] = os.Getenv(key)
os.Setenv(key, value)
}
return func() {
for key, originalValue := range original {
os.Setenv(key, originalValue)
}
}
}
func PrepareTestRootDir() (func(), error) {
if err := os.MkdirAll(TestRoot, 0700); err != nil {
return nil, err
}
var oldWd string
cleanup := func() {
if oldWd != "" {
err := os.Chdir(oldWd)
if err != nil {
panic(err)
}
}
if err := os.RemoveAll(TestRoot); err != nil {
panic(err)
}
}
if err := copyTestData(); err != nil {
cleanup()
return nil, err
}
oldWd, err := os.Getwd()
if err != nil {
cleanup()
return nil, err
}
if err := os.Chdir(TestRoot); err != nil {
cleanup()
return nil, err
}
return cleanup, nil
}
func copyTestData() error {
testDataDir, err := getTestDataDir()
if err != nil {
return err
}
testdata := path.Join(testDataDir, "testroot")
return copy.Copy(testdata, TestRoot)
}
func getTestDataDir() (string, error) {
_, currentFile, _, ok := runtime.Caller(0)
if !ok {
return "", fmt.Errorf("Could not get caller info")
}
return path.Join(path.Dir(currentFile), "testdata"), nil
}
func Setenv(key, value string) (func(), error) {
oldValue := os.Getenv(key)
err := os.Setenv(key, value)
return func() { os.Setenv(key, oldValue) }, err
}
func SetupLogger() *test.Hook {
logger, hook := test.NewNullLogger()
logrus.SetOutput(logger.Writer())
return hook
}
// logrus fires a Goroutine to write the output log, but there's no way to
// flush all outstanding hooks to fire. We just wait up to a second
// for an event to appear.
func WaitForLogEvent(hook *test.Hook) bool {
for i := 0; i < 10; i++ {
if entry := hook.LastEntry(); entry != nil {
return true
}
time.Sleep(100*time.Millisecond)
}
return false
}
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