1 files changed, 16 insertions, 14 deletions
diff --git a/test/minitest/test_minitest_mock.rb b/test/minitest/test_minitest_mock.rb
index 8c005e8be8..53216d1aaa 100644
--- a/test/minitest/test_minitest_mock.rb
+++ b/test/minitest/test_minitest_mock.rb
@@ -293,18 +293,22 @@ class TestMiniTestStub < MiniTest::Unit::TestCase
     assert_equal @assertion_count, @tc._assertions
   end
 
+  class Time
+    def self.now
+      24
+    end
+  end
+
   def assert_stub val_or_callable
     @assertion_count += 1
 
-    synchronize do
-      t = Time.now.to_i
-
-      Time.stub :now, val_or_callable do
-        @tc.assert_equal 42, Time.now
-      end
+    t = Time.now.to_i
 
-      @tc.assert_operator Time.now.to_i, :>=, t
+    Time.stub :now, val_or_callable do
+      @tc.assert_equal 42, Time.now
     end
+
+    @tc.assert_operator Time.now.to_i, :>=, t
   end
 
   def test_stub_private_module_method
@@ -352,15 +356,13 @@ class TestMiniTestStub < MiniTest::Unit::TestCase
   def test_stub_block_args
     @assertion_count += 1
 
-    synchronize do
-      t = Time.now.to_i
-
-      Time.stub :now,  lambda { |n| n * 2 } do
-        @tc.assert_equal 42, Time.now(21)
-      end
+    t = Time.now.to_i
 
-      @tc.assert_operator Time.now.to_i, :>=, t
+    Time.stub :now,  lambda { |n| n * 2 } do
+      @tc.assert_equal 42, Time.now(21)
     end
+
+    @tc.assert_operator Time.now.to_i, :>=, t
   end
 
   def test_stub_callable