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-rw-r--r--test/makechan.go28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/makechan.go b/test/makechan.go
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+++ b/test/makechan.go
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+// errorcheck
+
+// 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.
+
+// Ensure that typed non-integer, negative and to large
+// values are not accepted as size argument in make for
+// channels.
+
+package main
+
+type T chan byte
+
+var sink T
+
+func main() {
+ sink = make(T, -1) // ERROR "negative buffer argument in make.*|must not be negative"
+ sink = make(T, uint64(1<<63)) // ERROR "buffer argument too large in make.*|overflows int"
+
+ sink = make(T, 0.5) // ERROR "constant 0.5 truncated to integer|truncated to int"
+ sink = make(T, 1.0)
+ sink = make(T, float32(1.0)) // ERROR "non-integer buffer argument in make.*|must be integer"
+ sink = make(T, float64(1.0)) // ERROR "non-integer buffer argument in make.*|must be integer"
+ sink = make(T, 1+0i)
+ sink = make(T, complex64(1+0i)) // ERROR "non-integer buffer argument in make.*|must be integer"
+ sink = make(T, complex128(1+0i)) // ERROR "non-integer buffer argument in make.*|must be integer"
+}