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-rw-r--r--test/fixedbugs/issue21317.go56
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..32b660c
--- /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", 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)
+ }
+ }
+}