+
+ describe "format_host/1" do
+ test "with domain" do
+ assert Connection.format_host("example.com") == 'example.com'
+ end
+
+ test "with idna domain" do
+ assert Connection.format_host("ですexample.com") == 'xn--example-183fne.com'
+ end
+
+ test "with ipv4" do
+ assert Connection.format_host("127.0.0.1") == '127.0.0.1'
+ end
+
+ test "with ipv6" do
+ assert Connection.format_host("2a03:2880:f10c:83:face:b00c:0:25de") ==
+ '2a03:2880:f10c:83:face:b00c:0:25de'
+ end
+ end