add invalid date test cases for address parsing functions

lua/cfc_http_restrictions/default_config.lua

@@ -2,14 +2,12 @@ AddCSLuaFile()
 
 ---@alias WhitelistAddressOption { allowed: boolean|nil, noisy: boolean|nil, permanent: boolean|nil }
 
----@class WhitelistConfig 
+---@class WhitelistConfig
 ---@field version string
 ---@field wrapHTMLPanels boolean|nil
 ---@field defaultAssetURIOptions WhitelistAddressOption
 ---@field defaultOptions WhitelistAddressOption
 ---@field addresses table<string, WhitelistAddressOption>
-
----@type WhitelistConfig
 local config = {
     version = "1", -- this field allows backwards compatibility if the config structure is ever updated
 

lua/cfc_http_restrictions/shared/url.lua

@@ -36,8 +36,9 @@ end
 
 local parsedAddressCache = {}
 ---@parm url string
----@return string
+---@return string|nil
 function CFCHTTP.GetAddress( url )
+    if not url then return end
     local cached = parsedAddressCache[url]
     if cached then return cached end
 
@@ -50,4 +51,3 @@ end
 function CFCHTTP.IsAssetURI( url )
     return string.StartWith( url, "asset://" )
 end
-

lua/tests/cfc_cl_http_whitelist/url.lua

@@ -4,6 +4,8 @@ local testUrls = {
     { url = "https://fox.pics:8080/0d875a97-2ab3-489c-b7db-d9d9f026504e.jpg", address = "fox.pics" },
     { url = "https://cfcservers.org", address = "cfcservers.org" },
     { url = "https://24.321.483.222", address = "24.321.483.222" },
+    { url = "nil", address = nil },
+    { url = nil, address = nil },
 }
 
 local htmlBlobs = [[
@@ -28,9 +30,12 @@ return {
                 for _, urlData in pairs( testUrls ) do
                     local html = htmlBlobs:format( urlData.url )
                     local urls = CFCHTTP.FileTypes.HTML.GetURLSFromData( html )
-
-                    expect( #urls ).to.equal( 1 )
-                    expect( urls[1] ).to.equal( urlData.url )
+                    if urlData.address then
+                        expect( #urls ).to.equal( 1 )
+                        expect( urls[1] ).to.equal( urlData.url )
+                    else
+                        expect( #urls ).to.equal( 0 )
+                    end
                 end
             end
         },