Re: write-test.php alternative

From: Date: Sun, 06 Aug 2006 23:48:21 +0000
Subject: Re: write-test.php alternative
References: 1 2 3  Groups: php.qa 
Request: Send a blank email to php-qa+get-26858@lists.php.net to get a copy of this message
Marcus Boerger wrote: > Hello Ligaya, > > sorry missed it, erm can you sent it as a text file again, please? > > marcus > > Monday, August 7, 2006, 12:38:27 AM, you wrote: > > >>Ligaya Turmelle wrote: >> >>>OK - really hope I did this right. Attached is an alternate for the >>>current write-test.php qa doc page. The new page has some additional >>>info and explanations as well as some reorganization of what is already >>>there. Hopefully it will be a bit easier for beginners. I did the >>>update and it merged. Let me know if there are any problems. >>> >>> >>>------------------------------------------------------------------------ >>> >>>Index: write-test.php >>>=================================================================== >>>RCS file: /repository/qaweb/write-test.php,v >>>retrieving revision 1.7 >>>diff -u -r1.7 write-test.php >>>--- write-test.php 11 Jul 2006 22:50:53 -0000 1.7 >>>+++ write-test.php 18 Jul 2006 05:53:43 -0000 >>>@@ -18,10 +18,76 @@ >>> <tr> >>> <td width="10">&nbsp;</td> >>> <td width="100%"> >>>-<p>Writing a test file is very easy if you are used to PHP. >>>-Here is an actual test file from standard module:</p> >>>+<h2>phpt Test Basics</h2> >>>+<ul> >>>+ <li> >>>+ <b>So what are phpt tests?</b> >>>+ <p>A phpt test is a little script used by the php internal and >>>quality >>>+assurance teams to test PHP's functionality. It can be used with new releases to >>>make >>>+sure they can do all the things that previous releases can, or to help find bugs in >>>current >>>+releases. By writing phpt tests you are helping to make PHP stabler.</p> >>>+ </li> >>>+ >>>+ <li> >>>+ <b>What skills are needed to write a phpt test?</b> >>>+ <p>All that is really needed to write a phpt test >>>+is a basic understanding of the PHP language, a text editor, and a way to get the >>>results >>>+of your code. That is it. So if you have been writing and running PHP scripts already >>>- >>>+you have everything you need.</p> >>>+ </li> >>>+ >>>+ <li> >>>+ <b>What do you write phpt tests on?</b> >>>+ <p>Basically you can write a phpt test on one of the various >>>+php functions available. You can write a test on a basic language function (a string >>>+function or an array function) , or a function provided by one of PHP's numerous >>>extensions >>>+(a mysql function or a image function or a mcrypt function). You can find out what >>>functions >>>+already have phpt tests on them by looking in the <a >>>href="http://cvs.php.net/viewvc.cgi/">html >>>+version</a> of the cvs (php-src/ext/standard/tests/ is a good place to start >>>looking - though >>>+<i>all</i> the tests currently written are NOT in there). After that - you >>> >>>+can pick any function you want. If you want more guidance than that - you can always >>>ask >>>+the PHP Quality Assurance Team on their mailing list >>>+(<a href="mailto:php-qa@lists.php.net"¡ >>>Þ¤Ú@+Ê–¿‡ý�Ó>php-qa@lists.php.net</a>) where they >>>+would like you to direct your attentions.</p> >>>+ </li> >>>+ >>>+ <li> >>>+ <b>How is a phpt test is used?</b> >>>+ <p>When a test is called by the run-test.php script it takes various >>> >>>+parts of the phpt file to name and create a .php file. That .php file is then >>>executed. The >>>+output of the .php file is then compared to a different section of the phpt file. If >>>the output of >>>+the script "matches" the output provided in the phpt script - it >>>passes.</p> >>>+ </li> >>>+ >>>+ <li> >>>+ <b>What should a phpt test do?</b> >>>+ <p>Basically - it should try and break the PHP function. It should >>>check not >>>+only the functions normal parameters, but it should also check edge cases. >>>Intentionally generating >>>+an error is allowed.</p> >>>+ </li> >>>+</ul> >>>+ >>>+<h2>Writing phpt Tests</h2> >>>+<h3>Naming Conventions</h3> >>>+<p>Phpt tests follow a very strict naming convention. This is done to easily >>>identify what each phpt >>>+test is for. Tests should be named according to the following list: >>>+ <ul type="none"> >>>+ <li><i>Tests for bugs</i><br /> >>>+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!-- Give >>>me some space! --> >>>+ bug&lt;bugid&gt;.phpt (bug17123.phpt)</li> >>>+ <li><i>Tests for functions</i><br /> >>>+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; >>><!-- Give me some space! --> >>>+ &lt;functionname&gt;.phpt (dba_open.phpt)</li> >>>+ <li><i>General tests for extensions</i><br /> >>>+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; >>><!-- Give me some space! --> >>>+ &lt;extname&gt;&lt;no&gt;.phpt >>>(dba_003.phpt)</li> >>>+ </ul> >>>+</p> >>> >>>-<h3>ext/standard/tests/strings/strtr.phpt</h3> >>>+<h3>Basic Format</h3> >>>+<p>A test must contain the sections TEST, FILE and either EXPECT or EXPECTF at a >>>minimum. The example >>>+below illustrates a minimal test.</p> >>>+<i>ext/standard/tests/strings/strtr.phpt</i> >>> <pre> >>> --TEST-- >>> strtr() function >>>@@ -35,33 +101,37 @@ >>> string(32) "# hello All, I sAid hi planet! #" >>> </pre> >>> >>>-<p>As you can see the file is devided into several sections. Below is a >>>-list of all possible sections:</p> >>>+<p>As you can see the file is divided into several sections. The TEST section >>>holds a one line comment >>>+about the phpt test. The phpt files name is used when generating a .php file. The FILE >>>section is used >>>+as the body of the .php file, so don't forget to open and close your php tags. >>>The EXPECT section is >>>+the part used as a comparison to see if the test passes. It is a >>>+good idea to generate output with var_dump() calls.</p> >>> >>>+<h3>All Sections</h3> >>>+A phpt test can have many more parts then just the minimum. In fact some of the >>>manditory parts have >>>+alternatives that may be used if the situation warrents it. >>> <dl> >>> <dt>--TEST--</dt> >>> <dd>title of the test. (required)</dd> >>> >>> <dt>--SKIPIF--</dt> >>>-<dd>is condition when to skip this test. (optional)</dd> >>>+<dd>a condition when to skip this test. (optional)</dd> >>> >>> <dt>--POST--</dt> >>>-<dd>is POST variable passed to test script. (optional)</dd> >>>+<dd>POST variables to be passed to the test script. (optional)</dd> >>> >>> <dt>--GET--</dt> >>>-<dd>is GET variable passed to test script. (optional)</dd> >>>+<dd>GET variables to be passed to the test script. (optional)</dd> >>> >>> <dt>--INI--</dt> >>>-<dd>each line contains an ini setting e.g. foo=bar. (optional)</dd> >>>+<dd>to be used if you need a specific php.ini setting for the test. >>>+ Each line contains an ini setting e.g. foo=bar. (optional)</dd> >>> >>> <dt>--ARGS--</dt> >>> <dd>a single line defining the arguments passed to php. (optional)</dd> >>> >>> <dt>--ENV--</dt> >>>-<dd>configures the environment to be used ofr php. (optional)</dt> >>>- >>>-<dt>--FILE--</dt> >>>-<dd>the test script. (required)</dd> >>>+<dd>configures the environment to be used for php. (optional)</dt> >>> >>> <dt>--FILEEOF--</dt> >>> <dd>an alternative to --FILE-- where any trainling line break is omitted. >>>@@ -101,13 +171,9 @@ >>> <dd>This is only available in the --FILE-- section. Any part after this line >>> is not going into the actual test script (see below for more).</dd> >>> >>>-<p>A test must at least contain the sections TEST, FILE and either EXPECT >>>-or EXPECTF. When a test is called run-test.php takes the name from the >>>-TEST section and writes the FILE section into a ".php" file with the >>>-same name as the ".phpt" file. This ".php" file will then be >>>executed >>>-and its output compared to the contents of the EXPECT section. It is a >>>-good idea to generate output with var_dump() calls.</p> >>>+<h2>Examples</h2> >>> >>>+<h3>EXPECTF</h3> >>> <p>/ext/standard/tests/strings/str_shuffle.phpt is a good example for using >>> EXPECTF instead of EXPECT. From time to time the algorithm used for shuffle >>> changed and sometimes the machine used to execute the code has influence >>>@@ -115,8 +181,7 @@ >>> detectable by %s. Other scan-able forms are %i for integers, %d for numbers >>> only, %f for floating point values, %c for single characters and %x for >>> hexadecimal values.</p> >>>- >>>-<h3>/ext/standard/tests/strings/str_shuffle.phpt</h3> >>>+<i>/ext/standard/tests/strings/str_shuffle.phpt</i> >>> <pre> >>> --TEST-- >>> Testing str_shuffle. >>>@@ -132,12 +197,13 @@ >>> string(3) "123" >>> </pre> >>> >>>+<h3>EXPECTREGEX</h3> >>> <p>/ext/standard/tests/strings/strings001.phpt is a good example for using >>> EXPECTREGEX instead of EXPECT. This test also shows that in EXPECTREGEX >>> some characters need to be escaped since otherwise they would be >>> interpreted as a regular expression.</p> >>> >>>-<h3>/ext/standard/tests/strings/strings001.phpt</h3> >>>+<i>/ext/standard/tests/strings/strings001.phpt</i> >>> <pre> >>> --TEST-- >>> Test whether strstr() and strrchr() are binary safe. >>>@@ -153,6 +219,7 @@ >>> string\(19\) \" nica\x00turska panica\" >>> </pre> >>> >>>+<h3>SKIPIF</h3> >>> <p>Some tests depend on modules or functions available only in certain versions >>> or they even require minimum version of php or zend. These tests should be >>> skipped when the requirement cannot be fullfilled. To achieve this you can >>>@@ -160,7 +227,7 @@ >>> the SKIPIF section must print out the word "skip" followed by a reason why >>> the test should skip.</p> >>> >>>-<h3>/ext/exif/tests/exif005.phpt</h3> >>>+<i>/ext/exif/tests/exif005.phpt</i> >>> <pre> >>> --TEST-- >>> Check for exif_read_data, unusual IFD start >>>@@ -188,26 +255,16 @@ >>> <p>Test script and SKIPIF code should be directly written into *.phpt. However, >>> it is recommended to use include files when more test scripts depend on the >>> same SKIPIF code or when certain test files need the same values for some >>>-input. But no file used by any test should have one of the following >>>-extensions: ".php", ".log", ".exp", ".out" or >>>".diff".</p> >>>- >>>-<p>Tests should be named according to the following list: >>>-<dl> >>>-<dt>Tests for bugs</dt> >>>-<dd>bug&lt;bugid&gt;.phpt (bug17123.phpt)</dd> >>>- >>>-<dt>Tests for functions</dt> >>>-<dd>&lt;functionname&gt;.phpt (dba_open.phpt)</dd> >>>+input. </p> >>> >>>-<dt>General tests for extensions</dt> >>>-<dd>&lt;extname&gt;&lt;no&gt;.phpt (dba_003.phpt)</dd> >>>-</dl> >>>-</p> >>> >>>-<p>When you use an include file for the SKIPIF section it should be named >>>-"skipif.inc" and an include file used in the FILE section of many tests >>>-should be named "test.inc".</p> >>>+<p> >>>+<b>Note:</b> no file used by any test should have one of the following >>>extensions: >>>+".php", ".log", ".exp", ".out" or >>>".diff". When you use an include file for the >>>+SKIPIF section it should be named "skipif.inc" and an include file used in >>>the >>>+FILE section of many tests should be named "test.inc".</p> >>> >>>+<h2> Final Notes</h2> >>> <h3>Redirecting tests</h3> >>> <p>Using --REDIRECTTEST-- it is possible to redirect from one test to a bunch >>> of other tests. That way multiple extensions can refer to the same set of >>>@@ -222,11 +279,9 @@ >>> </p> >>> >>> <p>Redirect tests may especially contain --SKIPIF--, --ENV-- and --ARGS-- >>>-sections but they no not use any --EXPECT-- section. >>>-</p> >>>+sections but they no not use any --EXPECT-- section.</p> >>> >>Was there something wrong with this or did people just not like the >>rewrite? If so what would you like changed? > > > > > > Best regards, > Marcus > > > > > Sure. here it is - hopefully it works better then last time. -- life is a game... so have fun.

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