<?php
class CoderTestCase extends DrupalWebTestCase {
  protected $review_name;

  function __construct($review_name, $id = NULL) {
    parent::__construct($id);
    $this->review_name = $review_name;
  }

  function setUp() {
    // Only do the setUp once per test case, not once per function call.
    static $run_once;
    if (!isset($run_once)) {
      parent::setUp();
      $run_once = TRUE;
    }
  }

  function runTest($code, $severity = SEVERITY_MINOR) {
    $reviews = coder_reviews();
    $ext = variable_get('coder_php_ext', array('inc', 'php', 'install', 'test'));
    $coder_args = array(
      '#severity' => $severity,
      '#filename' => 'snippet.php',
      '#test' => $code,
      '#php_extensions' => $ext,
      '#include_extensions' => _coder_get_reviews_extensions($ext, $reviews),
    );
    _coder_read_and_parse_file($coder_args);
    $results = do_coder_review($coder_args, $reviews[$this->review_name]);
    unset($results['#stats']);
    return $results;
  }

  protected function assertCoderPass($code) {
    // Run the coder review on the code snippet.
    $results = $this->runTest($code);

    // Display the test results.
    $message = 'Pass:'. str_replace(array('%s', '%d'), array('%%s', '%%d'), $code);
    if (count($results) == 0) {
      $this->assertTrue(TRUE, $message);
    }
    else {
      $this->assertTrue(FALSE, $message .': '. $this->getWarnings($results));
    }
  }

  protected function assertCoderFail($code) {
    // Run the coder review on the code snippet.
    $results = $this->runTest($code);

    // Display the test results.
    $message = 'Fail:'. str_replace(array('%s', '%d'), array('%%s', '%%d'), $code);
    if (count($results) <= 1) {
      $this->assertTrue(count($results) == 1, $message);
    }
    else {
      $this->assertTrue(FALSE, $message .': '. $this->getWarnings($results));
    }
  }
  
  private function getWarnings($results) {
    $warnings = array();
    foreach ($results as $error) {
      $warning = _coder_warning($error['rule']);
      if (is_array($warning)) {
        $warning = $warning['#warning'];
      }
      $warnings[] = $warning;
    }
    return implode('; ', $warnings);
  }
}