1 files changed, 52 insertions, 0 deletions
diff --git a/libgo/go/net/port_test.go b/libgo/go/net/port_test.go
new file mode 100644
index 0000000000..e0bdb4247d
--- /dev/null
+++ b/libgo/go/net/port_test.go
@@ -0,0 +1,52 @@
+// Copyright 2016 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 net
+
+import "testing"
+
+var parsePortTests = []struct {
+	service     string
+	port        int
+	needsLookup bool
+}{
+	{"", 0, false},
+
+	// Decimal number literals
+	{"-1073741825", -1 << 30, false},
+	{"-1073741824", -1 << 30, false},
+	{"-1073741823", -(1<<30 - 1), false},
+	{"-123456789", -123456789, false},
+	{"-1", -1, false},
+	{"-0", 0, false},
+	{"0", 0, false},
+	{"+0", 0, false},
+	{"+1", 1, false},
+	{"65535", 65535, false},
+	{"65536", 65536, false},
+	{"123456789", 123456789, false},
+	{"1073741822", 1<<30 - 2, false},
+	{"1073741823", 1<<30 - 1, false},
+	{"1073741824", 1<<30 - 1, false},
+	{"1073741825", 1<<30 - 1, false},
+
+	// Others
+	{"abc", 0, true},
+	{"9pfs", 0, true},
+	{"123badport", 0, true},
+	{"bad123port", 0, true},
+	{"badport123", 0, true},
+	{"123456789badport", 0, true},
+	{"-2147483649badport", 0, true},
+	{"2147483649badport", 0, true},
+}
+
+func TestParsePort(t *testing.T) {
+	// The following test cases are cribbed from the strconv
+	for _, tt := range parsePortTests {
+		if port, needsLookup := parsePort(tt.service); port != tt.port || needsLookup != tt.needsLookup {
+			t.Errorf("parsePort(%q) = %d, %t; want %d, %t", tt.service, port, needsLookup, tt.port, tt.needsLookup)
+		}
+	}
+}