Add hostname setter tests

tests/setters_tests.json

@@ -525,7 +525,7 @@
             }
         },
         {
-            "comment": "Stuff after a \\ delimiter is ignored",
+            "comment": "Stuff after a \\ delimiter is ignored for special schemes",
             "href": "http://example.net/path",
             "new_value": "example.com\\stuff",
             "expected": {
@@ -613,8 +613,173 @@
             }
         }
     ],
-    "hostname": [],
-    "port": [],
+    "hostname": [
+        {
+            "comment": "Cannot-be-a-base means no host",
+            "href": "mailto:me@example.net",
+            "new_value": "example.com",
+            "expected": {
+                "href": "mailto:me@example.net",
+                "host": ""
+            }
+        },
+        {
+            "comment": "Cannot-be-a-base means no password",
+            "href": "data:text/plain,Stuff",
+            "new_value": "example.net",
+            "expected": {
+                "href": "data:text/plain,Stuff",
+                "host": ""
+            }
+        },
+        {
+            "href": "http://example.net:8080",
+            "new_value": "example.com",
+            "expected": {
+                "href": "http://example.com:8080/",
+                "host": "example.com:8080",
+                "hostname": "example.com",
+                "port": "8080"
+            }
+        },
+        {
+            "comment": "The empty host is not valid for special schemes",
+            "href": "http://example.net",
+            "new_value": "",
+            "expected": {
+                "href": "http://example.net/",
+                "host": "example.net"
+            }
+        },
+        {
+            "comment": "The empty host is OK for non-special schemes",
+            "href": "view-source+http://example.net/foo",
+            "new_value": "",
+            "expected": {
+                "href": "view-source+http:///foo",
+                "host": ""
+            }
+        },
+        {
+            "comment": "Path-only URLs can gain a host",
+            "href": "a:/foo",
+            "new_value": "example.net",
+            "expected": {
+                "href": "a://example.net/foo",
+                "host": "example.net"
+            }
+        },
+        {
+            "comment": "Path-only URLs can gain a host",
+            "href": "a:/foo",
+            "new_value": "example.net",
+            "expected": {
+                "href": "a://example.net/foo",
+                "host": "example.net"
+            }
+        },
+        {
+            "comment": "IPv4 address syntax is normalized",
+            "href": "http://example.net:8080",
+            "new_value": "0x7F000001",
+            "expected": {
+                "href": "http://127.0.0.1:8080/",
+                "host": "127.0.0.1:8080",
+                "hostname": "127.0.0.1",
+                "port": "8080"
+            }
+        },
+        {
+            "comment": "IPv6 address syntax is normalized",
+            "href": "http://example.net",
+            "new_value": "[::0:01]",
+            "expected": {
+                "href": "http://[::1]/",
+                "host": "[::1]",
+                "hostname": "[::1]",
+                "port": ""
+            }
+        },
+        {
+            "comment": "Stuff after a : delimiter is ignored",
+            "href": "http://example.net/path",
+            "new_value": "example.com:8080",
+            "expected": {
+                "href": "http://example.com/path",
+                "host": "example.com",
+                "hostname": "example.com",
+                "port": ""
+            }
+        },
+        {
+            "comment": "Stuff after a : delimiter is ignored",
+            "href": "http://example.net:8080/path",
+            "new_value": "example.com:",
+            "expected": {
+                "href": "http://example.com:8080/path",
+                "host": "example.com:8080",
+                "hostname": "example.com",
+                "port": "8080"
+            }
+        },
+        {
+            "comment": "Stuff after a / delimiter is ignored",
+            "href": "http://example.net/path",
+            "new_value": "example.com/stuff",
+            "expected": {
+                "href": "http://example.com/path",
+                "host": "example.com",
+                "hostname": "example.com",
+                "port": ""
+            }
+        },
+        {
+            "comment": "Stuff after a ? delimiter is ignored",
+            "href": "http://example.net/path",
+            "new_value": "example.com?stuff",
+            "expected": {
+                "href": "http://example.com/path",
+                "host": "example.com",
+                "hostname": "example.com",
+                "port": ""
+            }
+        },
+        {
+            "comment": "Stuff after a # delimiter is ignored",
+            "href": "http://example.net/path",
+            "new_value": "example.com#stuff",
+            "expected": {
+                "href": "http://example.com/path",
+                "host": "example.com",
+                "hostname": "example.com",
+                "port": ""
+            }
+        },
+        {
+            "comment": "Stuff after a \\ delimiter is ignored for special schemes",
+            "href": "http://example.net/path",
+            "new_value": "example.com\\stuff",
+            "expected": {
+                "href": "http://example.com/path",
+                "host": "example.com",
+                "hostname": "example.com",
+                "port": ""
+            }
+        },
+        {
+            "comment": "\\ is not a delimiter for non-special schemes, and it’s invalid in a domain",
+            "href": "view-source+http://example.net/path",
+            "new_value": "example.com\\stuff",
+            "expected": {
+                "href": "view-source+http://example.net/path",
+                "host": "example.net",
+                "hostname": "example.net",
+                "port": ""
+            }
+        }
+    ],
+    "port": [
+    ],
     "pathname": [],
     "search": [],
     "hash": []