Re: write-test.php alternative
| From: | Ligaya Turmelle | 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"> </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 />
>>>+ <!-- Give
>>>me some space! -->
>>>+ bug<bugid>.phpt (bug17123.phpt)</li>
>>>+ <li><i>Tests for functions</i><br />
>>>+
>>><!-- Give me some space! -->
>>>+ <functionname>.phpt (dba_open.phpt)</li>
>>>+ <li><i>General tests for extensions</i><br />
>>>+
>>><!-- Give me some space! -->
>>>+ <extname><no>.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<bugid>.phpt (bug17123.phpt)</dd>
>>>-
>>>-<dt>Tests for functions</dt>
>>>-<dd><functionname>.phpt (dba_open.phpt)</dd>
>>>+input. </p>
>>>
>>>-<dt>General tests for extensions</dt>
>>>-<dd><extname><no>.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.