Clean up meck functions in fabric

- After upgrading `meck`, CI got errors about `context setup failed`.
Cleaning up `meck` functions in `fabric` to fix this issue.

```
[2025-03-12T20:04:15.632Z] module 'fabric_view_map'
[2025-03-12T20:04:16.552Z]   fabric_view_map_meck_original:330: -handle_message_test_/0-fun-20- (t_handle_message_rexi_down)...[0.005 s] ok
[2025-03-12T20:04:17.472Z]   undefined
[2025-03-12T20:04:17.472Z]   *** context setup failed ***
[2025-03-12T20:04:17.472Z] **in function persistent_term:get/1
[2025-03-12T20:04:17.472Z]   called as get({cover,fabric_view_map_meck_original})
[2025-03-12T20:04:17.472Z] in call from fabric_view_map_meck_original:'-handle_message_test_/0-fun-23-'/0
[2025-03-12T20:04:17.472Z] **error:badarg
```

- Simplify tests with `?TDEF` and `?TDEF_FE`

Author: jiahuili430

src/fabric/src/fabric.erl

@@ -761,7 +761,7 @@ set_namespace(NS, #mrargs{extra = Extra} = Args) ->
     Args#mrargs{extra = [{namespace, NS} | Extra]}.
 
 -ifdef(TEST).
--include_lib("eunit/include/eunit.hrl").
+-include_lib("couch/include/couch_eunit.hrl").
 
 update_doc_test_() ->
     {
@@ -770,18 +770,12 @@ update_doc_test_() ->
             setup,
             fun setup/0,
             fun teardown/1,
-            fun(Ctx) ->
-                [
-                    should_throw_conflict(Ctx)
-                ]
-            end
+            with([?TDEF(should_throw_conflict)])
         }
     }.
 
 should_throw_conflict(Doc) ->
-    ?_test(begin
-        ?assertThrow(conflict, update_doc(<<"test-db">>, Doc, []))
-    end).
+    ?assertThrow(conflict, update_doc(<<"test-db">>, Doc, [])).
 
 setup() ->
     Doc = #doc{
@@ -793,25 +787,13 @@ setup() ->
         meta = []
     },
     ok = application:ensure_started(config),
-    ok = meck:expect(mem3, shards, fun(_, _) -> [] end),
-    ok = meck:expect(mem3, quorum, fun(_) -> 1 end),
-    ok = meck:expect(rexi, cast, fun(_, _) -> ok end),
-    ok = meck:expect(
-        rexi_utils,
-        recv,
-        fun(_, _, _, _, _, _) ->
-            {ok, {error, [{Doc, conflict}]}}
-        end
-    ),
-    ok = meck:expect(
-        couch_util,
-        reorder_results,
-        fun(_, [{_, Res}], _) ->
-            [Res]
-        end
-    ),
-    ok = meck:expect(fabric_util, create_monitors, fun(_) -> ok end),
-    ok = meck:expect(rexi_monitor, stop, fun(_) -> ok end),
+    meck:expect(mem3, shards, fun(_, _) -> [] end),
+    meck:expect(mem3, quorum, fun(_) -> 1 end),
+    meck:expect(rexi, cast, fun(_, _) -> ok end),
+    meck:expect(rexi_utils, recv, fun(_, _, _, _, _, _) -> {ok, {error, [{Doc, conflict}]}} end),
+    meck:expect(couch_util, reorder_results, fun(_, [{_, Res}], _) -> [Res] end),
+    meck:expect(fabric_util, create_monitors, fun(_) -> ok end),
+    meck:expect(rexi_monitor, stop, fun(_) -> ok end),
     Doc.
 
 teardown(_) ->

src/fabric/src/fabric_db_create.erl

@@ -221,15 +221,15 @@ db_exists_for_existing_db() ->
     Mock = fun(DbName) when is_binary(DbName) ->
         [#shard{dbname = DbName, range = [0, 100]}]
     end,
-    ok = meck:expect(mem3, shards, Mock),
+    meck:expect(mem3, shards, Mock),
     ?assertEqual(true, db_exists(<<"foobar">>)),
     ?assertEqual(true, meck:validate(mem3)).
 
 db_exists_for_missing_db() ->
     Mock = fun(DbName) ->
         erlang:error(database_does_not_exist, [DbName])
     end,
-    ok = meck:expect(mem3, shards, Mock),
+    meck:expect(mem3, shards, Mock),
     ?assertEqual(false, db_exists(<<"foobar">>)),
     ?assertEqual(false, meck:validate(mem3)).