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@@ -27,7 +27,12 @@ module Tuple
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   # Tuple#inspect
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   #   Inspect the contents of a Tuple
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   def funcall(tuple, ~inspect, [])
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-    ["(", tuple.to_list().map { |e| e.inspect() }.join(","), ")"].join()
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+    elems = tuple.to_list().map { |e| e.inspect() }.join(",")
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+    # special-case trailing comma
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+    if tuple.size() == 1
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+      ["(", elems, ",)"].join()
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+    else
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+      ["(", elems, ")"].join()
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   # Tuple#size
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   #   Return the number of elements in a Tuple

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@@ -4,6 +4,7 @@ module TupleTest
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     nth_test()
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     to_list_test()
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+    inspect_test()
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   # retrieves the nth element correctly
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   def nth_test
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@@ -17,3 +18,8 @@ module TupleTest
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     TestHelper.expect("converts to a list", fun do
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       ([1,2,3].to_s(), (1,2,3).to_list().to_s())
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     )
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+
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+  def inspect_test
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+    TestHelper.expect("inspect returns valid tuple syntax", fun do
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+      (true, ().inspect() == "()" and (1,).inspect() == "(1,)" and (1,2).inspect() == "(1,2)")
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+    )
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