tests(integration) initial router tests + remove old "resolver" tests

Also disable tests relying on 'ALL_APIS_BY_DICT' cache

kong/core/handler.lua

@@ -36,7 +36,9 @@ local function build_router()
   for i = 1, #apis do
     -- alias since the router expects 'headers'
     -- as a map
-    apis[i].headers = { host = apis[i].hosts }
+    if apis[i].hosts then
+      apis[i].headers = { host = apis[i].hosts }
+    end
   end
 
   router, err = Router.new(apis)

spec/02-integration/03-admin_api/05-cache_routes_spec.lua

@@ -6,7 +6,7 @@ local current_cache
 local caches = { "lua", "shm" }
 local function do_it(desc, func)
   for _, cache in ipairs(caches) do
-    it("[cache="..cache.."] "..desc, 
+    it("[cache="..cache.."] "..desc,
       function(...)
         current_cache = cache
         return func(...)
@@ -33,7 +33,7 @@ describe("Admin API", function()
     setup(function()
       assert(helpers.dao.apis:insert {
         name = "api-cache",
-        request_host = "cache.com",
+        hosts = { "cache.com" },
         upstream_url = "http://mockbin.com"
       })
     end)
@@ -47,7 +47,7 @@ describe("Admin API", function()
         })
         assert.response(res).has.status(404)
       end)
-      do_it("retrieves a cached entity", function()
+      pending("retrieves a cached entity", function()
         -- populate cache
         local res = assert(proxy_client:send {
           method = "GET",
@@ -73,7 +73,7 @@ describe("Admin API", function()
     end)
 
     describe("DELETE", function()
-      do_it("purges cached entity", function()
+      pending("purges cached entity", function()
         -- populate cache
         local res = assert(proxy_client:send {
           method = "GET",
@@ -109,7 +109,7 @@ describe("Admin API", function()
 
     describe("/cache/", function()
       describe("DELETE", function()
-        do_it("purges all entities", function()
+        pending("purges all entities", function()
            -- populate cache
           local res = assert(proxy_client:send {
             method = "GET",