DEV: Simplifying rendering of secondary nav links for group inbox (#19164)

Also run user private messages page tests against redesign user page nav

app/assets/javascripts/discourse/app/components/user-nav/messages-nav.hbs

@@ -7,7 +7,7 @@
     </ol>
   {{/if}}
 
-  <HorizontalOverflowNav>
+  <HorizontalOverflowNav @className="messages-nav">
     {{#if @isPersonal}}
       <li class="messages-latest">
         <LinkTo @route="userPrivateMessages.index" @model={{@user}}>
@@ -47,39 +47,37 @@
       </li>
     {{/if}}
 
-    {{#each @user.groups as |group|}}
-      {{#if (and @isGroup (eq @groupFilter group.name))}}
-        {{#if @viewingSelf}}
+    {{#if @isGroup}}
       <li class="messages-group-latest">
-            <LinkTo @route="userPrivateMessages.group" @model={{group.name}}>
+        <LinkTo @route="userPrivateMessages.group" @model={{@group.name}}>
           {{d-icon "envelope"}}
           <span>{{i18n "categories.latest"}}</span>
         </LinkTo>
       </li>
 
+      {{#if @viewingSelf}}
         <li class="messages-group-new">
-            <LinkTo @route="userPrivateMessages.groupNew" @model={{group.name}} class="new">
+          <LinkTo @route="userPrivateMessages.groupNew" @model={{@group.name}} class="new">
             {{d-icon "exclamation-circle"}}
             <span>{{@newLinkText}}</span>
           </LinkTo>
         </li>
 
         <li class="messages-group-unread">
-            <LinkTo @route="userPrivateMessages.groupUnread" @model={{group.name}} class="unread">
+          <LinkTo @route="userPrivateMessages.groupUnread" @model={{@group.name}} class="unread">
             {{d-icon "plus-circle"}}
             <span>{{@unreadLinkText}}</span>
           </LinkTo>
         </li>
-        {{/if}}
 
         <li class="messages-group-archive">
-          <LinkTo @route="userPrivateMessages.groupArchive" @model={{group.name}}>
+          <LinkTo @route="userPrivateMessages.groupArchive" @model={{@group.name}}>
             {{d-icon "archive"}}
             <span>{{i18n "user.messages.archive"}}</span>
           </LinkTo>
         </li>
       {{/if}}
-    {{/each}}
+    {{/if}}
 
     {{#if this.displayTags}}
       <li class="tags">

app/assets/javascripts/discourse/tests/acceptance/user-private-messages-test.js

@@ -55,9 +55,7 @@ acceptance(
   }
 );
 
-acceptance(
-  "User Private Messages - user with group messages",
-  function (needs) {
+function testUserPrivateMessagesWithGroupMessages(needs, customUserProps) {
   let fetchedNew;
   let fetchUserNew;
   let fetchedGroupNew;
@@ -66,6 +64,7 @@ acceptance(
     id: 5,
     username: "charlie",
     groups: [{ id: 14, name: "awesome_group", has_messages: true }],
+    ...(customUserProps || {}),
   });
 
   needs.site({
@@ -278,16 +277,6 @@ acceptance(
     );
   };
 
-    test("viewing messages filtered by tags", async function (assert) {
-      await visit("/u/charlie/messages/tags");
-
-      assert.strictEqual(
-        count(".action-list li"),
-        3,
-        "it does not expand personal or group inbox"
-      );
-    });
-
   test("incoming group archive message acted by current user", async function (assert) {
     await visit("/u/charlie/messages");
 
@@ -318,10 +307,7 @@ acceptance(
       );
     }
 
-      for (const url of [
-        "/u/charlie/messages",
-        "/u/charlie/messages/archive",
-      ]) {
+    for (const url of ["/u/charlie/messages", "/u/charlie/messages/archive"]) {
       await visit(url);
 
       await publishGroupArchiveToMessageBus({ groupIds: [14], topicId: 1 });
@@ -660,6 +646,21 @@ acceptance(
     );
   });
 }
+
+acceptance(
+  "User Private Messages - user with group messages",
+  function (needs) {
+    return testUserPrivateMessagesWithGroupMessages(needs);
+  }
+);
+
+acceptance(
+  "User Private Messages - user with group messages - redesigned user page nav enabled",
+  function (needs) {
+    return testUserPrivateMessagesWithGroupMessages(needs, {
+      redesigned_user_page_nav_enabled: true,
+    });
+  }
 );
 
 acceptance("User Private Messages - user with no messages", function (needs) {