86 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			86 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/*
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* @file
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*  We choose to test the backend system in two parts.
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*    - Origin. These tests assure that we are generate a proper ssh command
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*        when a backend invoke is needed.
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*    - Target. These tests assure that drush generates a delimited JSON array
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*        when called with --backend option.
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*
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*  Advantages of this approach:
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*    - No network calls and thus more robust.
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*    - No network calls and thus faster.
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*/
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class backendCase extends Drush_TestCase {
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  const DRUSH_BACKEND_OUTPUT_DELIMITER = 'DRUSH_BACKEND_OUTPUT_START>>>%s<<<DRUSH_BACKEND_OUTPUT_END';
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  /*
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   * Covers the following origin responsibilities.
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   *   - A remote host is recognized in site specification.
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   *   - Generates expected ssh command.
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   *
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   * General handling of site aliases will be in sitealiasTest.php.
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   */
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  function testOrigin() {
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    $exec = sprintf('%s %s version --simulate --ssh-options=%s | grep ssh', self::escapeshellarg(UNISH_DRUSH), self::escapeshellarg('user@server/path/to/drupal#sitename'), self::escapeshellarg('-i mysite_dsa'));
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    $this->execute($exec);
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    // $expected might be different on non unix platforms. We shall see.
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    $expected = "proc_open: ssh -i mysite_dsa 'user'@'server' 'drush  --uri='\''sitename'\'' --root='\''/path/to/drupal'\'' --simulate version --backend 2>&1'  2>&1";
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    $output = $this->getOutput();
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    $this->assertEquals($expected, $output, 'Expected ssh command was built');
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  }
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  /*
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   * Covers the following target responsibilities.
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   *   - Interpret stdin as options as per REST API.
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   *   - Successfully execute specified command.
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   *   - JSON object has expected contents (including errors).
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   *   - JSON object is wrapped in expected delimiters.
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  */
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  function testTarget() {
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    $stdin = json_encode(array('filter'=>'sql'));
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    $exec = sprintf('echo %s | %s help --backend', self::escapeshellarg($stdin), self::escapeshellarg(UNISH_DRUSH));
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    $this->execute($exec);
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    $parsed = $this->parse($this->getOutput());
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    $this->assertTrue((bool) $parsed, 'Successfully parsed backend output');
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    $this->assertArrayHasKey('log', $parsed);
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    $this->assertArrayHasKey('output', $parsed);
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    $this->assertArrayHasKey('object', $parsed);
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    $this->assertEquals(self::EXIT_SUCCESS, $parsed['error_status']);
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    // This assertion shows that `help` was called and that stdin options were respected.
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    $this->assertStringStartsWith('SQL commands', $parsed['output']);
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    $this->assertEquals('Bootstrap to phase 0.', $parsed['log'][0]['message']);
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    // Check error propogation by requesting an invalid command (missing Drupal site).
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    $exec = sprintf('%s core-cron --backend 2>/dev/null', self::escapeshellarg(UNISH_DRUSH));
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    $this->execute($exec, self::EXIT_ERROR);
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    $parsed = $this->parse($this->getOutput());
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    $this->assertEquals(1, $parsed['error_status']);
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    $this->assertArrayHasKey('DRUSH_NO_DRUPAL_ROOT', $parsed['error_log']);
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  }
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  /*
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   * A slightly less functional copy of drush_backend_parse_output().
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   */
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  function parse($string) {
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    $regex = sprintf(self::DRUSH_BACKEND_OUTPUT_DELIMITER, '(.*)');
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    preg_match("/$regex/s", $string, $match);
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    if ($match[1]) {
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      // we have our JSON encoded string
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      $output = $match[1];
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      // remove the match we just made and any non printing characters
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      $string = trim(str_replace(sprintf(self::DRUSH_BACKEND_OUTPUT_DELIMITER, $match[1]), '', $string));
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    }
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    if ($output) {
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      $data = json_decode($output, TRUE);
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      if (is_array($data)) {
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        return $data;
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      }
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    }
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    return $string;
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  }
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}
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