Normalize: ".twingly.com" -> "www.twingly.com"?

[dentarg]

Found this in my git stash, with the name "dot problem" (yes, it looks kinda old, before rspec...)

I will leave it here so I can clean my stash... :) We should probably check with our .NET version.

$ git stash show -p
diff --git a/test/unit/normalization_test.rb b/test/unit/normalization_test.rb
index 939c52c..7fa6a34 100644
--- a/test/unit/normalization_test.rb
+++ b/test/unit/normalization_test.rb
@@ -83,6 +83,13 @@ class NormalizerTest < Test::Unit::TestCase
       assert_equal "http://www.twingly.com/", result
     end

+    should "add www without dot if host is missing a subdomain but include dot" do
+      url = "http://.twingly.com/"
+      result = @normalizer.normalize_url(url)
+
+      assert_equal "http://www.twingly.com/", result
+    end
+
     should "not add www if the host has a subdomain" do
       url = "http://blog.twingly.com/"
       result = @normalizer.normalize_url(url)

Current master (4d507d9)

$ pry -r ./lib/twingly/url.rb
[1] pry(main)> Twingly::URL.parse("http://.twingly.com/").normalized.to_s
=> "http://.twingly.com/"

Slightly related to #52 perhaps.

[walro]

Run-time exception (line 7): Invalid URI: The hostname could not be parsed.

Stack Trace:

[System.UriFormatException: Invalid URI: The hostname could not be parsed.]
  at Program.Main(): line 7

[walro]

That's the output from new Uri("http//.twingly.com"); I am thinking we should go with NullURL.

[dentarg]

Tried http://.twingly.com/ in Google Chrome, the dot is removed

Request URL:http://twingly.com/

[dentarg]

I am thinking we should go with NullURL

Agree.

This one has solved itself 😄

$ pry
[1] pry(main)> require "twingly/url"
=> true
[2] pry(main)> Twingly::URL::VERSION
=> "5.0.1"
[3] pry(main)> Twingly::URL.parse("http://.twingly.com/")
=> #<Twingly::URL::NullURL:0x007fc4e4dcc520>

We have very similar test cases

    "http://.com.my/",
    "http://.net",

but I will add another one just to be sure, before closing this.

[dentarg]

No, I will close this first, as wontfix.