tests/CliTestCase.php

   1 <?php
   2
   3 /**
   4  * Implements an external test-case like RemoteTestCase that parses its
   5  * output from XML returned by a command line call
   6  */
   7 class CliTestCase
   8 {
   9     public $_command;
  10     public $_out = false;
  11     public $_quiet = false;
  12     public $_errors = array();
  13     public $_size = false;
  14     /**
  15      * @param $command Command to execute to retrieve XML
  16      * @param $xml Whether or not to suppress error messages
  17      */
  18     public function __construct($command, $quiet = false, $size = false) {
  19         $this->_command = $command;
  20         $this->_quiet   = $quiet;
  21         $this->_size    = $size;
  22     }
  23     public function getLabel() {
  24         return $this->_command;
  25     }
  26     public function run(&$reporter) {
  27         if (!$this->_quiet) $reporter->paintFormattedMessage('Running ['.$this->_command.']');
  28         return $this->_invokeCommand($this->_command, $reporter);
  29     }
  30     public function _invokeCommand($command, &$reporter) {
  31        $xml = shell_exec($command);
  32         if (! $xml) {
  33             if (!$this->_quiet) {
  34                 $reporter->paintFail('Command did not have any output [' . $command . ']');
  35             }
  36             return false;
  37         }
  38         $parser = &$this->_createParser($reporter);
  39
  40         set_error_handler(array($this, '_errorHandler'));
  41         $status = $parser->parse($xml);
  42         restore_error_handler();
  43
  44         if (! $status) {
  45             if (!$this->_quiet) {
  46                 foreach ($this->_errors as $error) {
  47                     list($no, $str, $file, $line) = $error;
  48                     $reporter->paintFail("Error $no: $str on line $line of $file");
  49                 }
  50                 if (strlen($xml) > 120) {
  51                     $msg = substr($xml, 0, 50) . "...\n\n[snip]\n\n..." . substr($xml, -50);
  52                 } else {
  53                     $msg = $xml;
  54                 }
  55                 $reporter->paintFail("Command produced malformed XML");
  56                 $reporter->paintFormattedMessage($msg);
  57             }
  58             return false;
  59         }
  60         return true;
  61     }
  62     public function &_createParser(&$reporter) {
  63         $parser = new SimpleTestXmlParser($reporter);
  64         return $parser;
  65     }
  66     public function getSize() {
  67         // This code properly does the dry run and allows for proper test
  68         // case reporting but it's REALLY slow, so I don't recommend it.
  69         if ($this->_size === false) {
  70             $reporter = new SimpleReporter();
  71             $this->_invokeCommand($this->_command . ' --dry', $reporter);
  72             $this->_size = $reporter->getTestCaseCount();
  73         }
  74         return $this->_size;
  75     }
  76     public function _errorHandler($a, $b, $c, $d) {
  77         $this->_errors[] = array($a, $b, $c, $d); // see set_error_handler()
  78     }
  79 }
  80