🐛 Fix Set inputs for SequenceSet

This was broken by #319

Author: nevans

lib/net/imap/sequence_set.rb

@@ -30,8 +30,8 @@ class IMAP
     #
     # SequenceSet.new may receive a single optional argument: a non-zero 32 bit
     # unsigned integer, a range, a <tt>sequence-set</tt> formatted string,
-    # another sequence set, a Set (containing only numbers), or an Array
-    # containing any of these (array inputs may be nested).
+    # another sequence set, a Set (containing only numbers or <tt>*</tt>), or an
+    # Array containing any of these (array inputs may be nested).
     #
     #     set = Net::IMAP::SequenceSet.new(1)
     #     set.valid_string  #=> "1"
@@ -1265,7 +1265,7 @@ def input_to_tuples(obj)
         when *STARS, Integer, Range then [input_to_tuple(obj)]
         when String      then str_to_tuples obj
         when SequenceSet then obj.tuples
-        when Set         then obj.map      { to_tuple_int _1 }
+        when Set         then obj.map      { [to_tuple_int(_1)] * 2 }
         when Array       then obj.flat_map { input_to_tuples _1 }
         when nil         then []
         else

test/net/imap/test_sequence_set.rb

@@ -140,6 +140,7 @@ def compare_to_reference_set(nums, set, seqset)
     assert_empty SequenceSet.new [[]]
     assert_empty SequenceSet.new nil
     assert_empty SequenceSet.new ""
+    assert_empty SequenceSet.new Set.new
   end
 
   test ".[] must not be empty" do
@@ -148,6 +149,7 @@ def compare_to_reference_set(nums, set, seqset)
     assert_raise DataFormatError do SequenceSet[[[]]] end
     assert_raise DataFormatError do SequenceSet[nil]  end
     assert_raise DataFormatError do SequenceSet[""]   end
+    assert_raise DataFormatError do SequenceSet[Set.new] end
   end
 
   test "#[non-negative index]" do
@@ -719,6 +721,18 @@ def test_inspect((expected, input, freeze))
     complement: "6:8,12:98,100:#{2**32 - 1}",
   }, keep: true
 
+  data "Set", {
+    input:      Set[*(9..11), :*, 99, *(1..5)],
+    elements:   [1..5, 9..11, 99, :*],
+    entries:    [1..5, 9..11, 99, :*],
+    ranges:     [1..5, 9..11, 99..99, :*..],
+    numbers:    RangeError,
+    to_s:       "1:5,9:11,99,*",
+    normalize:  "1:5,9:11,99,*",
+    count:      10,
+    complement: "6:8,12:98,100:#{2**32 - 1}",
+  }, keep: true
+
   data "empty", {
     input:      nil,
     elements:   [],