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<?php
/**
* base include file for SimpleTest
* @package SimpleTest
* @subpackage UnitTester
* @version $Id: shell_tester.php,v 1.21 2006/11/10 20:59:57 lastcraft Exp $
*/
/**#@+
* include other SimpleTest class files
*/
require_once(dirname(__FILE__) . '/test_case.php');
/**#@-*/
/**
* Wrapper for exec() functionality.
* @package SimpleTest
* @subpackage UnitTester
*/
class SimpleShell {
var $_output;
/**
* Executes the shell comand and stashes the output.
* @access public
*/
function SimpleShell() {
$this->_output = false;
}
/**
* Actually runs the command. Does not trap the
* error stream output as this need PHP 4.3+.
* @param string $command The actual command line
* to run.
* @return integer Exit code.
* @access public
*/
function execute($command) {
$this->_output = false;
exec($command, $this->_output, $ret);
return $ret;
}
/**
* Accessor for the last output.
* @return string Output as text.
* @access public
*/
function getOutput() {
return implode("\n", $this->_output);
}
/**
* Accessor for the last output.
* @return array Output as array of lines.
* @access public
*/
function getOutputAsList() {
return $this->_output;
}
}
/**
* Test case for testing of command line scripts and
* utilities. Usually scripts that are external to the
* PHP code, but support it in some way.
* @package SimpleTest
* @subpackage UnitTester
*/
class ShellTestCase extends SimpleTestCase {
var $_current_shell;
var $_last_status;
var $_last_command;
/**
* Creates an empty test case. Should be subclassed
* with test methods for a functional test case.
* @param string $label Name of test case. Will use
* the class name if none specified.
* @access public
*/
function ShellTestCase($label = false) {
$this->SimpleTestCase($label);
$this->_current_shell = &$this->_createShell();
$this->_last_status = false;
$this->_last_command = '';
}
/**
* Executes a command and buffers the results.
* @param string $command Command to run.
* @return boolean True if zero exit code.
* @access public
*/
function execute($command) {
$shell = &$this->_getShell();
$this->_last_status = $shell->execute($command);
$this->_last_command = $command;
return ($this->_last_status === 0);
}
/**
* Dumps the output of the last command.
* @access public
*/
function dumpOutput() {
$this->dump($this->getOutput());
}
/**
* Accessor for the last output.
* @return string Output as text.
* @access public
*/
function getOutput() {
$shell = &$this->_getShell();
return $shell->getOutput();
}
/**
* Accessor for the last output.
* @return array Output as array of lines.
* @access public
*/
function getOutputAsList() {
$shell = &$this->_getShell();
return $shell->getOutputAsList();
}
/**
* Called from within the test methods to register
* passes and failures.
* @param boolean $result Pass on true.
* @param string $message Message to display describing
* the test state.
* @return boolean True on pass
* @access public
*/
function assertTrue($result, $message = false) {
return $this->assert(new TrueExpectation(), $result, $message);
}
/**
* Will be true on false and vice versa. False
* is the PHP definition of false, so that null,
* empty strings, zero and an empty array all count
* as false.
* @param boolean $result Pass on false.
* @param string $message Message to display.
* @return boolean True on pass
* @access public
*/
function assertFalse($result, $message = '%s') {
return $this->assert(new FalseExpectation(), $result, $message);
}
/**
* Will trigger a pass if the two parameters have
* the same value only. Otherwise a fail. This
* is for testing hand extracted text, etc.
* @param mixed $first Value to compare.
* @param mixed $second Value to compare.
* @param string $message Message to display.
* @return boolean True on pass
* @access public
*/
function assertEqual($first, $second, $message = "%s") {
return $this->assert(
new EqualExpectation($first),
$second,
$message);
}
/**
* Will trigger a pass if the two parameters have
* a different value. Otherwise a fail. This
* is for testing hand extracted text, etc.
* @param mixed $first Value to compare.
* @param mixed $second Value to compare.
* @param string $message Message to display.
* @return boolean True on pass
* @access public
*/
function assertNotEqual($first, $second, $message = "%s") {
return $this->assert(
new NotEqualExpectation($first),
$second,
$message);
}
/**
* Tests the last status code from the shell.
* @param integer $status Expected status of last
* command.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertExitCode($status, $message = "%s") {
$message = sprintf($message, "Expected status code of [$status] from [" .
$this->_last_command . "], but got [" .
$this->_last_status . "]");
return $this->assertTrue($status === $this->_last_status, $message);
}
/**
* Attempt to exactly match the combined STDERR and
* STDOUT output.
* @param string $expected Expected output.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertOutput($expected, $message = "%s") {
$shell = &$this->_getShell();
return $this->assert(
new EqualExpectation($expected),
$shell->getOutput(),
$message);
}
/**
* Scans the output for a Perl regex. If found
* anywhere it passes, else it fails.
* @param string $pattern Regex to search for.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertOutputPattern($pattern, $message = "%s") {
$shell = &$this->_getShell();
return $this->assert(
new PatternExpectation($pattern),
$shell->getOutput(),
$message);
}
/**
* If a Perl regex is found anywhere in the current
* output then a failure is generated, else a pass.
* @param string $pattern Regex to search for.
* @param $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertNoOutputPattern($pattern, $message = "%s") {
$shell = &$this->_getShell();
return $this->assert(
new NoPatternExpectation($pattern),
$shell->getOutput(),
$message);
}
/**
* File existence check.
* @param string $path Full filename and path.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertFileExists($path, $message = "%s") {
$message = sprintf($message, "File [$path] should exist");
return $this->assertTrue(file_exists($path), $message);
}
/**
* File non-existence check.
* @param string $path Full filename and path.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertFileNotExists($path, $message = "%s") {
$message = sprintf($message, "File [$path] should not exist");
return $this->assertFalse(file_exists($path), $message);
}
/**
* Scans a file for a Perl regex. If found
* anywhere it passes, else it fails.
* @param string $pattern Regex to search for.
* @param string $path Full filename and path.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertFilePattern($pattern, $path, $message = "%s") {
$shell = &$this->_getShell();
return $this->assert(
new PatternExpectation($pattern),
implode('', file($path)),
$message);
}
/**
* If a Perl regex is found anywhere in the named
* file then a failure is generated, else a pass.
* @param string $pattern Regex to search for.
* @param string $path Full filename and path.
* @param string $message Message to display.
* @return boolean True if pass.
* @access public
*/
function assertNoFilePattern($pattern, $path, $message = "%s") {
$shell = &$this->_getShell();
return $this->assert(
new NoPatternExpectation($pattern),
implode('', file($path)),
$message);
}
/**
* Accessor for current shell. Used for testing the
* the tester itself.
* @return Shell Current shell.
* @access protected
*/
function &_getShell() {
return $this->_current_shell;
}
/**
* Factory for the shell to run the command on.
* @return Shell New shell object.
* @access protected
*/
function &_createShell() {
$shell = &new SimpleShell();
return $shell;
}
}
?>
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