1 files changed, 18 insertions, 0 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index 568c56181a..92c2062948 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -51,4 +51,22 @@ class TestFloat < Test::Unit::TestCase
     b = 100000000000000000000000.0
     assert_equal(a == b, b == a)
   end
+
+  def test_strtod
+    a = Float("0")
+    assert(a.abs < Float::EPSILON)
+    a = Float("0.0")
+    assert(a.abs < Float::EPSILON)
+    a = Float("+0.0")
+    assert(a.abs < Float::EPSILON)
+    a = Float("-0.0")
+    assert(a.abs < Float::EPSILON)
+    a = Float("0." + "00" * Float::DIG + "1")
+    assert(a != 0.0)
+    a = Float("+0." + "00" * Float::DIG + "1")
+    assert(a != 0.0)
+    a = Float("-0." + "00" * Float::DIG + "1")
+    assert(a != 0.0)
+    # add expected behaviour here.
+  end
 end