Fix non-deterministic test

There's a FooOption defined in options_test.rb

1 files changed, 1 insertions, 1 deletions

diff --git a/test/slop_test.rb b/test/slop_test.rb
index f6fb408..2610ebd 100644
--- a/test/slop_test.rb
+++ b/test/slop_test.rb
@@ -7,7 +7,7 @@ describe Slop do
     end
 
     it "returns false if the option is not defined" do
-      assert_equal false, Slop.option_defined?("Foo")
+      assert_equal false, Slop.option_defined?("FooBar")
     end
 
     it "returns true if the option is defined" do