test/ruby: better assertions

* test/ruby: use better assertions instead of mere assert.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44173 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/test/ruby/test_marshal.rb b/test/ruby/test_marshal.rb
index 7bd259329d..126efc8ae6 100644
--- a/test/ruby/test_marshal.rb
+++ b/test/ruby/test_marshal.rb
@@ -484,10 +484,10 @@ class TestMarshal < Test::Unit::TestCase
   def test_marshal_load_should_not_taint_classes
     bug7325 = '[ruby-core:49198]'
     for c in [TestClass, TestModule]
-      assert(!c.tainted?)
+      assert_not_predicate(c, :tainted?)
       c2 = Marshal.load(Marshal.dump(c).taint)
       assert_same(c, c2)
-      assert(!c.tainted?, bug7325)
+      assert_not_predicate(c, :tainted?, bug7325)
     end
   end