わんくま同盟 名古屋勉強会 #16 http://www.wankuma.com/seminar/20110115nagoya16/Default.aspx で使う予定だったスライド。 証明駆動開発の簡単な紹介。じゃっかんTDDにケンカを売ってる:)

1. Coq
@mzp
2011/01/15
#16
1

2. • mzp( )
• SE
•
• http://twitter.com/mzp
2

3. ‘‘
Coq Merge Sort -
http://d.hatena.ne.jp/yoshihiro503/20090923/p1
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4. ?
4

5. • : Base64
• encode ,decode
:
encode "abc" # => “YWJj”
decode "YWJj" # => “abc
• encode
decode
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6. TDD
: Test::Unit / Ruby
assert_equal "foo", decode(encode("foo"))
assert_equal "bar", decode(encode("bar"))
assert_equal "baz", decode(encode("baz"))
•
•
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7. QucikCheck
•
: QuickCheck / Haskell
prop :: String -> Bool
prop s = s == decode (encode s)
-- 100
main = quickCheck prop
•
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8. •
Goal forall ( s : string),
s = decode (encode s).
•
•
8

9. Coq
• OCaml / F#
•
• OCaml,Haskell,Scheme, (Ruby,
Clojure)
9

10. Coq in Real world
• Unison
•
• Coq
• OCamltter: https://github.com/yoshihiro503/ocamltter
• Twitter
• MessagePack for OCaml: https://github.com/mzp/msgpack-ocaml
• OCaml MessagePack
10

11. • TDD
• Coq
• Coq
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12. Ruby / Reject
• 2011/2/26( ) @
• Ruby / Reject
•
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