22541 extract breadcrumb route-state helper and align phase22 auth locale test

components/case/summary.js

@@ -45,6 +45,7 @@ import {
     showRepsEnded,
     getBilingualText
 } from "./summary/utils/helpers";
+import { resolveSearchResultsHref } from "../../lib/routing/routeState";
 
 import CaseNoticeBanner from "./caseNoticeBanner";
 import WatchModal from "./watchmodal";
@@ -324,52 +325,19 @@ const CaseSummary = (props) => {
 
     const zoom = isNaN(parseFloat(siteCoords.latitude)) ? 7 : 12;
 
-    const buildSearchHref = (router, session) => {
-        const { va, adv, ads, key } = router.query;
+    const isDnsRoute =
+        router.pathname === "/dns" ||
+        router.pathname.startsWith("/dns/") ||
+        router.pathname === "/myportal/dns" ||
+        router.pathname.startsWith("/myportal/dns/");
 
-        const isDnsRoute =
-            router.pathname === "/dns" ||
-            router.pathname.startsWith("/dns/") ||
-            router.pathname === "/myportal/dns" ||
-            router.pathname.startsWith("/myportal/dns/");
-
-        const base = session ? "/myportal" : "";
-
-        if (!va && !adv && !ads) {
-            return {
-                pathname: "/myportal"
-            };
-        }
-
-        if (isDnsRoute) {
-            return {
-                pathname: `${base}/dnsapplications`
-            };
-        }
-
-        if (va === "true") {
-            return {
-                pathname: "/myportal/viewall",
-                query: { key }
-            };
-        }
-
-        if (adv === "true") {
-            return {
-                pathname: `${base}/advancedsearchresults`,
-                query: router.query
-            };
-        }
-
-        if (ads === "true") {
-            return {
-                pathname: `${base}/addresssearchresults`,
-                query: router.query
-            };
-        }
-
-        return { pathname: `${base}/searchresults`, query: router.query };
-    };
+    const searchHref = resolveSearchResultsHref({
+        query: router.query,
+        hasSession: Boolean(session),
+        includeViewAll: true,
+        fallbackToMyPortalWhenNoFlags: true,
+        isDnsRoute
+    });
 
     let showDetailsBlock =
         showDetails == true ? (
@@ -1043,10 +1011,7 @@ const CaseSummary = (props) => {
 
                                                     <Link
                                                         className="govuk-button govuk-button--secondary"
-                                                        href={buildSearchHref(
-                                                            router,
-                                                            session
-                                                        )}
+                                                        href={searchHref}
                                                     >
                                                         {" "}
                                                         {t(