registryurl: use designated domains in tests (RFC2606)

Update domains used in tests to used domains that are designated for this
purpose as described in [RFC2606, section 3][1]

[1]: https://www.rfc-editor.org/rfc/rfc2606.html#section-3

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

registryurl/parse_test.go

@@ -13,15 +13,15 @@ func TestHelperParseURL(t *testing.T) {
 		expectedURL string
 		err         error
 	}{
-		{url: "foobar.docker.io", expectedURL: "//foobar.docker.io"},
-		{url: "foobar.docker.io:2376", expectedURL: "//foobar.docker.io:2376"},
-		{url: "//foobar.docker.io:2376", expectedURL: "//foobar.docker.io:2376"},
-		{url: "http://foobar.docker.io:2376", expectedURL: "http://foobar.docker.io:2376"},
-		{url: "https://foobar.docker.io:2376", expectedURL: "https://foobar.docker.io:2376"},
-		{url: "https://foobar.docker.io:2376/some/path", expectedURL: "https://foobar.docker.io:2376/some/path"},
-		{url: "https://foobar.docker.io:2376/some/other/path?foo=bar", expectedURL: "https://foobar.docker.io:2376/some/other/path"},
-		{url: "/foobar.docker.io", err: errors.New("no hostname in URL")},
-		{url: "ftp://foobar.docker.io:2376", err: errors.New("unsupported scheme: ftp")},
+		{url: "foobar.example.com", expectedURL: "//foobar.example.com"},
+		{url: "foobar.example.com:2376", expectedURL: "//foobar.example.com:2376"},
+		{url: "//foobar.example.com:2376", expectedURL: "//foobar.example.com:2376"},
+		{url: "http://foobar.example.com:2376", expectedURL: "http://foobar.example.com:2376"},
+		{url: "https://foobar.example.com:2376", expectedURL: "https://foobar.example.com:2376"},
+		{url: "https://foobar.example.com:2376/some/path", expectedURL: "https://foobar.example.com:2376/some/path"},
+		{url: "https://foobar.example.com:2376/some/other/path?foo=bar", expectedURL: "https://foobar.example.com:2376/some/other/path"},
+		{url: "/foobar.example.com", err: errors.New("no hostname in URL")},
+		{url: "ftp://foobar.example.com:2376", err: errors.New("unsupported scheme: ftp")},
 	}
 
 	for _, te := range tests {