len and cap on chans

R=ken
OCL=33599
CL=33599

1 files changed, 27 insertions, 0 deletions

diff --git a/test/chancap.go b/test/chancap.go
new file mode 100644
index 0000000000..15256f731d
--- /dev/null
+++ b/test/chancap.go
@@ -0,0 +1,27 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2009 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
+
+func main() {
+	c := make(chan int, 10);
+	if len(c) != 0 || cap(c) != 10 {
+		panicln("chan len/cap ", len(c), cap(c), " want 0 10");
+	}
+
+	for i := 0; i < 3; i++ {
+		c <- i;
+	}
+	if len(c) != 3 || cap(c) != 10 {
+		panicln("chan len/cap ", len(c), cap(c), " want 3 10");
+	}
+	
+	c = make(chan int);
+	if len(c) != 0 || cap(c) != 0 {
+		panicln("chan len/cap ", len(c), cap(c), " want 0 0");
+	}
+}
+