1 files changed, 12 insertions, 0 deletions
diff --git a/test/ruby/test_fixnum.rb b/test/ruby/test_fixnum.rb
index 3a1c2fa8bc..bd18067dda 100644
--- a/test/ruby/test_fixnum.rb
+++ b/test/ruby/test_fixnum.rb
@@ -337,4 +337,16 @@ class TestFixnum < Test::Unit::TestCase
     assert_not_predicate(0, :negative?)
     assert_not_predicate(1, :negative?)
   end
+
+  def test_finite_p
+    assert_predicate(1, :finite?)
+    assert_predicate(0, :finite?)
+    assert_predicate(-1, :finite?)
+  end
+
+  def test_infinite_p
+    assert_nil(1.infinite?)
+    assert_nil(0.infinite?)
+    assert_nil(-1.infinite?)
+  end
 end