Merge branch 'user-search-nickname-rank-boost' into 'develop'

Improved search results for localized nickname match

See merge request pleroma/pleroma!2733

1 files changed, 25 insertions, 6 deletions

diff --git a/test/user_search_test.exs b/test/user_search_test.exs
index f030523d3..559ba5966 100644
--- a/test/user_search_test.exs
+++ b/test/user_search_test.exs
@@ -46,30 +46,49 @@ defmodule Pleroma.UserSearchTest do
       assert length(User.search("john", limit: 3, offset: 3)) == 2
     end
 
-    test "finds a user by full or partial nickname" do
+    defp clear_virtual_fields(user) do
+      Map.merge(user, %{search_rank: nil, search_type: nil})
+    end
+
+    test "finds a user by full nickname or its leading fragment" do
       user = insert(:user, %{nickname: "john"})
 
       Enum.each(["john", "jo", "j"], fn query ->
         assert user ==
                  User.search(query)
                  |> List.first()
-                 |> Map.put(:search_rank, nil)
-                 |> Map.put(:search_type, nil)
+                 |> clear_virtual_fields()
       end)
     end
 
-    test "finds a user by full or partial name" do
+    test "finds a user by full name or leading fragment(s) of its words" do
       user = insert(:user, %{name: "John Doe"})
 
       Enum.each(["John Doe", "JOHN", "doe", "j d", "j", "d"], fn query ->
         assert user ==
                  User.search(query)
                  |> List.first()
-                 |> Map.put(:search_rank, nil)
-                 |> Map.put(:search_type, nil)
+                 |> clear_virtual_fields()
       end)
     end
 
+    test "matches by leading fragment of user domain" do
+      user = insert(:user, %{nickname: "arandom@dude.com"})
+      insert(:user, %{nickname: "iamthedude"})
+
+      assert [user.id] == User.search("dud") |> Enum.map(& &1.id)
+    end
+
+    test "ranks full nickname match higher than full name match" do
+      nicknamed_user = insert(:user, %{nickname: "hj@shigusegubu.club"})
+      named_user = insert(:user, %{nickname: "xyz@sample.com", name: "HJ"})
+
+      results = User.search("hj")
+
+      assert [nicknamed_user.id, named_user.id] == Enum.map(results, & &1.id)
+      assert Enum.at(results, 0).search_rank > Enum.at(results, 1).search_rank
+    end
+
     test "finds users, considering density of matched tokens" do
       u1 = insert(:user, %{name: "Bar Bar plus Word Word"})
       u2 = insert(:user, %{name: "Word Word Bar Bar Bar"})