func TestCommandLinesPipe(t *testing.T) {
stretcher.Init()
var buf bytes.Buffer
for i := 0; i < 10; i++ {
buf.WriteString(fmt.Sprintf("foo%d\n", i))
}
toWrite := buf.Bytes()
cmdlines := stretcher.CommandLines{
stretcher.CommandLine("cat > test/tmp/cmdoutput"),
stretcher.CommandLine("cat"),
stretcher.CommandLine("echo ok"),
}
defer os.Remove("test/tmp/cmdoutput")
err := cmdlines.InvokePipe(&buf)
if err != nil {
t.Error(err)
}
wrote, err := ioutil.ReadFile("test/tmp/cmdoutput")
if err != nil {
t.Error(err)
}
if bytes.Compare(toWrite, wrote) != 0 {
t.Error("unexpected wrote data", wrote)
}
}
func TestCommandLinesPipeIgnoreEPIPE(t *testing.T) {
stretcher.Init(0)
var buf bytes.Buffer
for i := 0; i < 1025; i++ {
buf.WriteString("0123456789012345678901234567890123456789012345678901234567890123") // 64 bytes
}
cmdlines := stretcher.CommandLines{
stretcher.CommandLine("echo ok"),
}
err := cmdlines.InvokePipe(&buf)
if err != nil {
t.Error(err)
}
if strings.Index(stretcher.LogBuffer.String(), "broken pipe") != -1 {
t.Error("broken pipe was occuered")
}
}