test: use testlib in a few more cases (part 2)

        Introduced "runoutput" cmd for running generated program

R=golang-dev, iant, bradfitz, remyoudompheng
CC=golang-dev
https://golang.org/cl/5869049

test/64bit.go

-// $G $D/$F.go && $L $F.$A && ./$A.out >tmp.go &&
-// $G tmp.go && $L tmp.$A && ./$A.out || echo BUG: 64bit
-// rm -f tmp.go
+// runoutput
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

test/chan/select5.go

-// $G $D/$F.go && $L $F.$A && ./$A.out >tmp.go &&
-// $G tmp.go && $L tmp.$A && ./$A.out || echo BUG: select5
-// rm -f tmp.go
+// runoutput
 
 // Copyright 2011 The Go Authors.  All rights reserved.
 // Use of this source code is governed by a BSD-style

test/crlf.go

-// $G $D/$F.go && $L $F.$A && ./$A.out >tmp.go &&
-// $G tmp.go && $L tmp.$A && ./$A.out
-// rm -f tmp.go
+// runoutput
 
 // Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

test/run

@@ -100,7 +100,7 @@ do
 			echo $i >>pass.out
 		fi
 		echo $(awk 'NR==1{print $2}' "$TMP2FILE") $D/$F >>times.out
-		rm -f $F.$A $A.out
+		rm -f $F.$A $A.out tmp.go
 	) done
 done | # clean up some stack noise
 	egrep -v '^(r[0-9a-z]+|[cfg]s)  +0x'  |

test/run.go

@@ -172,7 +172,7 @@ type test struct {
 	donec       chan bool // closed when done
 
 	src    string
-	action string // "compile", "build", "run", "errorcheck", "skip"
+	action string // "compile", "build", "run", "errorcheck", "skip", "runoutput"
 
 	tempDir string
 	err     error
@@ -251,7 +251,7 @@ func (t *test) run() {
 	case "cmpout":
 		action = "run" // the run case already looks for <dir>/<test>.out files
 		fallthrough
-	case "compile", "build", "run", "errorcheck":
+	case "compile", "build", "run", "errorcheck", "runoutput":
 		t.action = action
 	case "skip":
 		t.action = "skip"
@@ -316,6 +316,26 @@ func (t *test) run() {
 		if string(out) != t.expectedOutput() {
 			t.err = fmt.Errorf("incorrect output\n%s", out)
 		}
+
+	case "runoutput":
+		useTmp = false
+		out, err := runcmd("go", "run", t.goFileName())
+		if err != nil {
+			t.err = fmt.Errorf("%s\n%s", err, out)
+		}
+		tfile := filepath.Join(t.tempDir, "tmp__.go")
+		err = ioutil.WriteFile(tfile, out, 0666)
+		if err != nil {
+			t.err = fmt.Errorf("write tempfile:%s", err)
+			return
+		}
+		out, err = runcmd("go", "run", tfile)
+		if err != nil {
+			t.err = fmt.Errorf("%s\n%s", err, out)
+		}
+		if string(out) != t.expectedOutput() {
+			t.err = fmt.Errorf("incorrect output\n%s", out)
+		}
 	}
 }
 

test/testlib

@@ -13,6 +13,11 @@ build() {
 	$G $D/$F.go && $L $F.$A
 }
 
+runoutput() {
+	go run "$D/$F.go" > tmp.go
+	go run tmp.go
+}
+
 run() {
 	gofiles=""
 	ingo=true