Path: csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'exception': 0.03; 'test,': 0.05; 'calls.': 0.07; 'rewrite': 0.07; 'subject:test': 0.07; '0),': 0.09; '[0,': 0.09; 'called.': 0.09; 'received:mail- vb0-f46.google.com': 0.09; 'sep': 0.09; 'cc:addr:python-list': 0.10; '(ie,': 0.16; '-1))': 0.16; '1),': 0.16; '10:59': 0.16; 'eval': 0.16; 'iterator': 0.16; 'keyerror': 0.16; 'subject:strategy': 0.16; 'wrote:': 0.17; 'script.': 0.17; 'creates': 0.18; 'received:209.85.212.46': 0.18; 'define': 0.20; 'are.': 0.22; "i'd": 0.22; 'cc:2**0': 0.23; "i've": 0.23; 'seems': 0.23; 'cc:no real name:2**0': 0.24; 'cc:addr:python.org': 0.25; 'header:In-Reply-To:1': 0.25; 'values': 0.26; 'accuracy': 0.27; 'replace': 0.27; 'thoughts': 0.27; 'message-id:@mail.gmail.com': 0.27; 'developing': 0.28; 'rest': 0.28; 'received:209.85.212': 0.28; "people's": 0.29; "i'm": 0.29; "skip:' 10": 0.30; 'fri,': 0.30; 'function': 0.30; 'could': 0.32; 'instances': 0.33; 'version': 0.34; 'received:google.com': 0.34; 'pm,': 0.35; 'received:209.85': 0.35; 'something': 0.35; 'created': 0.36; 'but': 0.36; 'test': 0.36; 'should': 0.36; 'received:209': 0.37; 'subject:: ': 0.38; 'mean': 0.38; 'hello,': 0.39; 'header:Received:5': 0.40; 'think': 0.40; 'your': 0.60; 'first': 0.61; 'between': 0.63; 'more': 0.63; 'show': 0.63; 'within': 0.64; 'strategy': 0.64; 'differences': 0.65; 'below:': 0.71; 'introduce': 0.80; 'differences,': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=06hBOsV7v+/r6Ca3CQxEPY7otu80Sb60gXkVb2FiD8o=; b=YT53w4+Ksu7N/Y24pVJFndZL4LtS2xMfkVotxQElFUmxGVkAuKhXn2fE89ZhlG5wA5 QFZjkkgAAHMdQ36GjJhHGOiLlu68EbDzbzzGozYEMcmctZlAronkGgypuKPt3yUFO8NU npGYoTh3lJudM3KasUNU7SMs7Kv5jvgrILWoA+JjoJceRg/cfpUbSlZQdpGbCoNvtPmX UDDas4KdhbFo4qzsAEIpGD9eVGi0cfmn+xzduv8DsAZuQTq6WAegNbWWFDyJD5vyy5Ul HPRII5pTy+Qvu12NtrTSuNWUMFPNIVNX2COVcJWBxn3ZIRWtirr7nYpAREAn2NCPYj4B OCJw== MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 14 Sep 2012 23:32:44 -0400 Subject: Re: unit test strategy From: Dwight Hutto To: Aaron Brady Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 62 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1347679967 news.xs4all.nl 6842 [2001:888:2000:d::a6]:39137 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:29201 On Fri, Sep 14, 2012 at 11:26 PM, Dwight Hutto wro= te: > On Fri, Sep 14, 2012 at 10:59 PM, Aaron Brady wrot= e: >> Hello, >> >> I've developing a test script. There's a lot of repetition. I want to = introduce a strategy for approaching it, but I don't want the program to be= discredited because of the test script. Therefore, I'd like to know what = people's reactions to and thoughts about it are. >> >> The first strategy I used created an iterator and advanced it between ea= ch step: > > That isn't a refined iterator below: What I mean is look at the similarities, and the differences, then replace the differences with interpolation, in eval even. > >> self.op_chain(range(5), ('add', 5)) >> self.op_chain(range(5), ('add', -2), ('add', -1)) >> self.op_chain(range(5), ('discard', -1), ('add', 5)) >> self.op_chain_ok(range(5), ('update', [0, 1])) >> Etc. >> >> I'm considering something more complicated. 'iN' creates iterator N, 'n= N' advances iterator N, an exception calls 'assertRaises', and the rest are= function calls. iN =3D [N for N in range(0,5)] >> dsi=3D dict.__setitem__ >> ddi=3D dict.__delitem__ >> dsd=3D dict.setdefault >> KE=3D KeyError >> IE=3D IterationError >> self.chain(range(10), 'i0', (dsi, 0, 1), 'n0', (dsi, 10, 1), (IE= , 'n0')) >> self.chain(range(10), 'i0', 'n0', (dsd, 0, 0), 'n0', (dsd, 10, 1= ), (IE, 'n0')) >> self.chain(range(10), 'i0', (KE, ddi, 10), 'n0', (ddi, 9), (IE, = 'n0')) >> >> Do you think the 2nd version is legible? Could it interfere with the ac= curacy of the test? Define the 2nd version > > Show the test, which should show instances of what you want called. > > I could rewrite the above, but it seems you're more in need of refining > your iterations, and the values given within them. > --=20 Best Regards, David Hutto CEO: http://www.hitwebdevelopment.com