1 files changed, 4 insertions, 2 deletions
diff --git a/tool/lib/test/unit/testcase.rb b/tool/lib/test/unit/testcase.rb
index 6ce9f5940d..ea3092a4b3 100644
--- a/tool/lib/test/unit/testcase.rb
+++ b/tool/lib/test/unit/testcase.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 require 'test/unit/assertions'
+require_relative '../../core_assertions'
 
 module Test
   module Unit
@@ -143,6 +144,9 @@ module Test
     # See MiniTest::Assertions
 
     class TestCase
+      include Assertions
+      include CoreAssertions
+
       include LifecycleHooks
       include Guard
       extend Guard
@@ -332,8 +336,6 @@ module Test
 
       def teardown; end
 
-      include CoreAssertions
-
       def on_parallel_worker?
         false
       end