Implement getFlags in MissingArgument

A function in MissingArgument that returns
and array of all the flags that matches
the option missing an argument

1 files changed, 7 insertions, 0 deletions

diff --git a/test/error_test.rb b/test/error_test.rb
index d6a5412..1bf1604 100644
--- a/test/error_test.rb
+++ b/test/error_test.rb
@@ -7,6 +7,13 @@ describe Slop::MissingArgument do
     opts = Slop::Options.new
     opts.string "-n", "--name"
     assert_raises(Slop::MissingArgument) { opts.parse %w(--name) }
+
+    #Assert returns the argument question
+    begin
+      opts.parse %w(--name)
+    rescue Slop::MissingArgument => e
+      assert_equal(e.getFlags(), ["-n", "--name"])
+    end
   end
 
   it "does not raise when errors are suppressed" do