impl cidr as password:CIDR:http://target

server/server_test.go

@@ -105,3 +105,32 @@ func TestCORS(t *testing.T) {
 		}
 	})
 }
+
+func TestAssertFrom(t *testing.T) {
+	cases := map[string]struct {
+		from   string
+		remote string
+		err    bool
+	}{
+		"empty": {},
+		"ipv6 localhost": {
+			from:   "::1/128",
+			remote: "::1:12345",
+		},
+		"ipv4 localhost": {
+			from:   "127.0.0.1/32",
+			remote: "127.0.0.1:12345",
+		},
+	}
+
+	for name, d := range cases {
+		c := d
+		t.Run(name, func(t *testing.T) {
+			err := assertFrom(c.from, c.remote)
+			got := err != nil
+			if got != c.err {
+				t.Errorf("expected err=%v but got %v", c.err, err)
+			}
+		})
+	}
+}