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+<?php
+/**
+ * base include file for SimpleTest
+ * @package SimpleTest
+ * @subpackage UnitTester
+ * @version $Id: shell_tester.php 1723 2008-04-08 00:34:10Z lastcraft $
+ */
+
+/**#@+
+ * 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;
+ }
+}
+?>