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-rw-r--r--test/fixedbugs/issue19201.go52
1 files changed, 52 insertions, 0 deletions
diff --git a/test/fixedbugs/issue19201.go b/test/fixedbugs/issue19201.go
new file mode 100644
index 0000000..e370d55
--- /dev/null
+++ b/test/fixedbugs/issue19201.go
@@ -0,0 +1,52 @@
+// 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.
+
+package main
+
+import (
+ "encoding/binary"
+)
+
+var (
+ ch1 = make(chan int)
+ ch2 = make(chan int)
+
+ bin = []byte("a\000\000\001")
+ want = binary.BigEndian.Uint32(bin)
+
+ c consumer = noopConsumer{}
+)
+
+type msg struct {
+ code uint32
+}
+
+type consumer interface {
+ consume(msg)
+}
+
+type noopConsumer struct{}
+
+func (noopConsumer) consume(msg) {}
+
+func init() {
+ close(ch1)
+}
+
+func main() {
+ var m msg
+ m.code = binary.BigEndian.Uint32(bin)
+
+ select {
+ case <-ch1:
+ c.consume(m)
+ if m.code != want {
+ // can not use m.code here, or it will work
+ panic("BigEndian read failed")
+ }
+ case <-ch2:
+ }
+}