1 files changed, 12 insertions, 4 deletions
diff --git a/spec/ruby/core/array/pack/shared/float.rb b/spec/ruby/core/array/pack/shared/float.rb
index 6fc3b6b359..b9864adef5 100644
--- a/spec/ruby/core/array/pack/shared/float.rb
+++ b/spec/ruby/core/array/pack/shared/float.rb
@@ -42,7 +42,7 @@ describe :array_pack_float_le, shared: true do
   end
 
   it "encodes NaN" do
-    nans = ["\x00\x00\xc0\xff", "\x00\x00\xc0\x7f"]
+    nans = ["\x00\x00\xc0\xff", "\x00\x00\xc0\x7f", "\xFF\xFF\xFF\x7F"]
     nans.should include([nan_value].pack(pack_format))
   end
 
@@ -97,7 +97,7 @@ describe :array_pack_float_be, shared: true do
   end
 
   it "encodes NaN" do
-    nans = ["\xff\xc0\x00\x00", "\x7f\xc0\x00\x00"]
+    nans = ["\xff\xc0\x00\x00", "\x7f\xc0\x00\x00", "\x7F\xFF\xFF\xFF"]
     nans.should include([nan_value].pack(pack_format))
   end
 
@@ -152,7 +152,11 @@ describe :array_pack_double_le, shared: true do
   end
 
   it "encodes NaN" do
-    nans = ["\x00\x00\x00\x00\x00\x00\xf8\xff", "\x00\x00\x00\x00\x00\x00\xf8\x7f"]
+    nans = [
+      "\x00\x00\x00\x00\x00\x00\xf8\xff",
+      "\x00\x00\x00\x00\x00\x00\xf8\x7f",
+      "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x7F"
+    ]
     nans.should include([nan_value].pack(pack_format))
   end
 
@@ -207,7 +211,11 @@ describe :array_pack_double_be, shared: true do
   end
 
   it "encodes NaN" do
-    nans = ["\xff\xf8\x00\x00\x00\x00\x00\x00", "\x7f\xf8\x00\x00\x00\x00\x00\x00"]
+    nans = [
+      "\xff\xf8\x00\x00\x00\x00\x00\x00",
+      "\x7f\xf8\x00\x00\x00\x00\x00\x00",
+      "\x7F\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
+    ]
     nans.should include([nan_value].pack(pack_format))
   end