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pipe_test.go
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pipe_test.go
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package sh
import (
"encoding/xml"
"io"
"os"
"os/exec"
"strings"
"testing"
"time"
)
func TestUnmarshalJSON(t *testing.T) {
var a int
s := NewSession()
s.ShowCMD = true
err := s.Command("echo", []string{"1"}).UnmarshalJSON(&a)
if err != nil {
t.Error(err)
}
if a != 1 {
t.Errorf("expect a tobe 1, but got %d", a)
}
}
func TestUnmarshalXML(t *testing.T) {
s := NewSession()
xmlSample := `<?xml version="1.0" encoding="utf-8"?>
<server version="1" />`
type server struct {
XMLName xml.Name `xml:"server"`
Version string `xml:"version,attr"`
}
data := &server{}
s.Command("echo", xmlSample).UnmarshalXML(data)
if data.Version != "1" {
t.Error(data)
}
}
func TestPipe(t *testing.T) {
s := NewSession()
s.ShowCMD = true
s.Call("echo", "hello")
err := s.Command("echo", "hi").Command("cat", "-n").Start()
if err != nil {
t.Error(err)
}
err = s.Wait()
if err != nil {
t.Error(err)
}
out, err := s.Command("echo", []string{"hello"}).Output()
if err != nil {
t.Error(err)
}
if string(out) != "hello\n" {
t.Error("capture wrong output:", out)
}
s.Command("echo", []string{"hello\tworld"}).Command("cut", []string{"-f2"}).Run()
}
func TestPipeCommand(t *testing.T) {
c1 := exec.Command("echo", "good")
rd, wr := io.Pipe()
c1.Stdout = wr
c2 := exec.Command("cat", "-n")
c2.Stdout = os.Stdout
c2.Stdin = rd
c1.Start()
c2.Start()
c1.Wait()
wc, ok := c1.Stdout.(io.WriteCloser)
if ok {
wc.Close()
}
c2.Wait()
}
func TestPipeInput(t *testing.T) {
s := NewSession()
s.ShowCMD = true
s.SetInput("first line\nsecond line\n")
out, err := s.Command("grep", "second").Output()
if err != nil {
t.Error(err)
}
if string(out) != "second line\n" {
t.Error("capture wrong output:", out)
}
}
func TestTimeout(t *testing.T) {
s := NewSession()
err := s.Command("sleep", "2").Start()
if err != nil {
t.Fatal(err)
}
err = s.WaitTimeout(time.Second)
if err != ErrExecTimeout {
t.Fatal(err)
}
}
func TestSetTimeout(t *testing.T) {
s := NewSession()
s.SetTimeout(time.Second)
defer s.SetTimeout(0)
err := s.Command("sleep", "2").Run()
if err != ErrExecTimeout {
t.Fatal(err)
}
}
func TestCombinedOutput(t *testing.T) {
s := NewSession()
bytes, err := s.Command("sh", "-c", "echo stderr >&2 ; echo stdout").CombinedOutput()
if err != nil {
t.Error(err)
}
stringOutput := string(bytes)
if !(strings.Contains(stringOutput, "stdout") && strings.Contains(stringOutput, "stderr")) {
t.Errorf("expect output from both output streams, got '%s'", strings.TrimSpace(stringOutput))
}
}