1 files changed, 56 insertions, 0 deletions
diff --git a/test/fixedbugs/issue21317.go b/test/fixedbugs/issue21317.go
new file mode 100644
index 0000000..fe51ef1
--- /dev/null
+++ b/test/fixedbugs/issue21317.go
@@ -0,0 +1,56 @@
+// +build !js,gc
+// run
+
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// As of "Mon 6 Nov 2017", run.go doesn't yet have proper
+// column matching so instead match the output manually
+// by exec-ing
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func main() {
+	f, err := ioutil.TempFile("", "issue21317.go")
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Fprintf(f, `
+package main
+
+import "fmt"
+
+func main() {
+        n, err := fmt.Println(1)
+}
+`)
+	f.Close()
+	defer os.RemoveAll(f.Name())
+
+	// compile and test output
+	cmd := exec.Command("go", "tool", "compile", "-p=main", f.Name())
+	out, err := cmd.CombinedOutput()
+	if err == nil {
+		log.Fatalf("expected cmd/compile to fail")
+	}
+	wantErrs := []string{
+		"7:9: n declared but not used",
+		"7:12: err declared but not used",
+	}
+	outStr := string(out)
+	for _, want := range wantErrs {
+		if !strings.Contains(outStr, want) {
+			log.Fatalf("failed to match %q\noutput: %q", want, outStr)
+		}
+	}
+}