Add integration tests for scheduled post filtering in Phoenix

app/test/firehose_web/controllers/blog_controller_test.exs

@@ -1,6 +1,29 @@
 defmodule FirehoseWeb.BlogControllerTest do
   use FirehoseWeb.ConnCase, async: false
 
+  describe "GET /blog/:blog_id (index) - date filtering" do
+    test "does not show future-dated posts", %{conn: conn} do
+      conn = get(conn, ~p"/blog/engineering")
+      html = html_response(conn, 200)
+      refute html =~ "Future Test Post"
+    end
+  end
+
+  describe "GET /blog/:blog_id/:slug (show) - date filtering" do
+    test "still shows a future-dated post by slug", %{conn: conn} do
+      conn = get(conn, ~p"/blog/engineering/future-test-post")
+      assert html_response(conn, 200) =~ "Future Test Post"
+    end
+  end
+
+  describe "GET /blog/:blog_id/tag/:tag - date filtering" do
+    test "excludes future-dated posts from tag page", %{conn: conn} do
+      conn = get(conn, ~p"/blog/engineering/tag/test")
+      html = html_response(conn, 200)
+      refute html =~ "Future Test Post"
+    end
+  end
+
   describe "GET /blog/:blog_id/:slug - status banners" do
     test "authenticated user sees draft banner on draft post", %{conn: conn} do
       conn =