Update fuzzing script

test/fuzz.rb

@@ -13,24 +13,57 @@
     input = FuzzBert::Generators.random.call.chars.uniq
     alphabet = ::EncodedId::Alphabet.new(input)
     salt = FuzzBert::Generators.random.call
-    ::EncodedId::ReversibleId.new(
+    split_with = FuzzBert::Generators.random(5).call
+    split_at = rand(-500..10_000)
+    length = rand(-500..10_000)
+    hex_digit_encoding_group_size = rand(-5..70)
+    max_length = rand(-500..10_000)
+    reversible_id = ::EncodedId::ReversibleId.new(
       salt: salt,
       alphabet: alphabet,
-      split_with: FuzzBert::Generators.random(5).call,
-      split_at: rand(-500..10_000),
-      length: rand(-500..10_000),
-      hex_digit_encoding_group_size: rand(-5..70),
-      max_length: rand(-500..10_000)
-    ).decode(data)
-
-    # Test encode/decode pair
-    # TODO:
-    #
+      split_with: split_with,
+      split_at: split_at,
+      length: length,
+      hex_digit_encoding_group_size: hex_digit_encoding_group_size,
+      max_length: max_length
+    )
+
+    # # Test decode random fuzzed input
+    reversible_id.decode(data)
+
+    # Test encode/decode pair with inputs which will be converted using to_i
+    ids = FuzzBert::Generators.random.call
+    encoded = reversible_id.encode(ids.chars)
+    decoded = reversible_id.decode(encoded)
+
+    raise StandardError, "Decoded does not match input" unless decoded == ids.chars.map(&:to_i)
+
+    # Test encode/decode with integer inputs
+    encoded = reversible_id.encode(ids.codepoints)
+    decoded = reversible_id.decode(encoded)
+
+    raise StandardError, "Decoded does not match input" unless decoded == ids.codepoints
   rescue EncodedId::EncodedIdFormatError,
     EncodedId::InvalidInputError,
     EncodedId::InvalidConfigurationError,
-    EncodedId::InvalidAlphabetError
+    EncodedId::InvalidAlphabetError,
+    EncodedId::EncodedIdLengthError
     # fine, these are expected errors
+  rescue StandardError => e
+    puts "\n\nFailure\n--------------\n"
+    puts "Input: #{data}"
+    puts "Alphabet: #{alphabet}"
+    puts "Salt: #{salt}"
+    puts "Split with: #{split_with}"
+    puts "Split at: #{split_at}"
+    puts "Length: #{length}"
+    puts "Hex digit encoding group size: #{hex_digit_encoding_group_size}"
+    puts "Max length: #{max_length}"
+    puts "ReversibleId: #{reversible_id}"
+    puts "ids: #{ids}"
+    puts "encoded: #{encoded}"
+    puts "decoded: #{decoded}"
+    raise e
   end
 
   data "completely random" do