[tor-commits] [snowflake/master] Rough tests for the clientAddr function.

[dcf@xxxxxxxxxxxxxx]

commit 1ef6211c6c00101e6f0355f83168681b5fd65bfc
Author: David Fifield <david@xxxxxxxxxxxxxxx>
Date:   Tue Oct 17 22:09:58 2017 -0700

    Rough tests for the clientAddr function.
---
 server/server_test.go | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/server/server_test.go b/server/server_test.go
new file mode 100644
index 0000000..84ac7ba
--- /dev/null
+++ b/server/server_test.go
@@ -0,0 +1,49 @@
+package main
+
+import (
+	"net"
+	"strconv"
+	"testing"
+)
+
+func TestClientAddr(t *testing.T) {
+	// good tests
+	for _, test := range []struct {
+		input    string
+		expected net.IP
+	}{
+		{"1.2.3.4", net.ParseIP("1.2.3.4")},
+		{"1:2::3:4", net.ParseIP("1:2::3:4")},
+	} {
+		useraddr := clientAddr(test.input)
+		host, port, err := net.SplitHostPort(useraddr)
+		if err != nil {
+			t.Errorf("clientAddr(%q) â?? SplitHostPort error %v", test.input, err)
+			continue
+		}
+		if !test.expected.Equal(net.ParseIP(host)) {
+			t.Errorf("clientAddr(%q) â?? host %q, not %v", test.input, host, test.expected)
+		}
+		portNo, err := strconv.Atoi(port)
+		if err != nil {
+			t.Errorf("clientAddr(%q) â?? port %q", test.input, port)
+			continue
+		}
+		if portNo == 0 {
+			t.Errorf("clientAddr(%q) â?? port %d", test.input, portNo)
+		}
+	}
+
+	// bad tests
+	for _, input := range []string{
+		"",
+		"abc",
+		"1.2.3.4.5",
+		"[12::34]",
+	} {
+		useraddr := clientAddr(input)
+		if useraddr != "" {
+			t.Errorf("clientAddr(%q) â?? %q, not %q", input, useraddr, "")
+		}
+	}
+}

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