659 lines
21 KiB
PHP
659 lines
21 KiB
PHP
<?php
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/**
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* Base include file for SimpleTest
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* @package SimpleTest
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* @subpackage UnitTester
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* @version $Id: test_case.php 2012 2011-04-29 08:57:00Z pp11 $
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*/
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/**#@+
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* Includes SimpleTest files and defined the root constant
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* for dependent libraries.
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*/
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require_once(dirname(__FILE__) . '/invoker.php');
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require_once(dirname(__FILE__) . '/errors.php');
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require_once(dirname(__FILE__) . '/compatibility.php');
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require_once(dirname(__FILE__) . '/scorer.php');
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require_once(dirname(__FILE__) . '/expectation.php');
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require_once(dirname(__FILE__) . '/dumper.php');
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require_once(dirname(__FILE__) . '/simpletest.php');
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require_once(dirname(__FILE__) . '/exceptions.php');
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require_once(dirname(__FILE__) . '/reflection_php5.php');
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/**#@-*/
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if (! defined('SIMPLE_TEST')) {
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/**
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* @ignore
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*/
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define('SIMPLE_TEST', dirname(__FILE__) . DIRECTORY_SEPARATOR);
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}
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/**
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* Basic test case. This is the smallest unit of a test
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* suite. It searches for
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* all methods that start with the the string "test" and
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* runs them. Working test cases extend this class.
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* @package SimpleTest
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* @subpackage UnitTester
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*/
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class SimpleTestCase {
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private $label = false;
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protected $reporter;
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private $observers;
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private $should_skip = false;
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/**
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* Sets up the test with no display.
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* @param string $label If no test name is given then
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* the class name is used.
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* @access public
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*/
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function __construct($label = false) {
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if ($label) {
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$this->label = $label;
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}
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}
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/**
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* Accessor for the test name for subclasses.
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* @return string Name of the test.
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* @access public
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*/
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function getLabel() {
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return $this->label ? $this->label : get_class($this);
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}
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/**
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* This is a placeholder for skipping tests. In this
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* method you place skipIf() and skipUnless() calls to
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* set the skipping state.
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* @access public
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*/
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function skip() {
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}
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/**
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* Will issue a message to the reporter and tell the test
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* case to skip if the incoming flag is true.
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* @param string $should_skip Condition causing the tests to be skipped.
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* @param string $message Text of skip condition.
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* @access public
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*/
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function skipIf($should_skip, $message = '%s') {
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if ($should_skip && ! $this->should_skip) {
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$this->should_skip = true;
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$message = sprintf($message, 'Skipping [' . get_class($this) . ']');
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$this->reporter->paintSkip($message . $this->getAssertionLine());
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}
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}
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/**
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* Accessor for the private variable $_shoud_skip
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* @access public
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*/
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function shouldSkip() {
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return $this->should_skip;
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}
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/**
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* Will issue a message to the reporter and tell the test
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* case to skip if the incoming flag is false.
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* @param string $shouldnt_skip Condition causing the tests to be run.
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* @param string $message Text of skip condition.
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* @access public
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*/
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function skipUnless($shouldnt_skip, $message = false) {
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$this->skipIf(! $shouldnt_skip, $message);
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}
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/**
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* Used to invoke the single tests.
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* @return SimpleInvoker Individual test runner.
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* @access public
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*/
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function createInvoker() {
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return new SimpleErrorTrappingInvoker(
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new SimpleExceptionTrappingInvoker(new SimpleInvoker($this)));
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}
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/**
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* Uses reflection to run every method within itself
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* starting with the string "test" unless a method
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* is specified.
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* @param SimpleReporter $reporter Current test reporter.
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* @return boolean True if all tests passed.
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* @access public
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*/
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function run($reporter) {
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$context = SimpleTest::getContext();
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$context->setTest($this);
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$context->setReporter($reporter);
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$this->reporter = $reporter;
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$started = false;
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foreach ($this->getTests() as $method) {
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if ($reporter->shouldInvoke($this->getLabel(), $method)) {
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$this->skip();
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if ($this->should_skip) {
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break;
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}
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if (! $started) {
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$reporter->paintCaseStart($this->getLabel());
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$started = true;
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}
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$invoker = $this->reporter->createInvoker($this->createInvoker());
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$invoker->before($method);
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$invoker->invoke($method);
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$invoker->after($method);
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}
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}
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if ($started) {
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$reporter->paintCaseEnd($this->getLabel());
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}
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unset($this->reporter);
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$context->setTest(null);
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return $reporter->getStatus();
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}
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/**
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* Gets a list of test names. Normally that will
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* be all internal methods that start with the
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* name "test". This method should be overridden
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* if you want a different rule.
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* @return array List of test names.
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* @access public
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*/
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function getTests() {
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$methods = array();
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foreach (get_class_methods(get_class($this)) as $method) {
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if ($this->isTest($method)) {
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$methods[] = $method;
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}
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}
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return $methods;
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}
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/**
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* Tests to see if the method is a test that should
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* be run. Currently any method that starts with 'test'
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* is a candidate unless it is the constructor.
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* @param string $method Method name to try.
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* @return boolean True if test method.
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* @access protected
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*/
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protected function isTest($method) {
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if (strtolower(substr($method, 0, 4)) == 'test') {
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return ! SimpleTestCompatibility::isA($this, strtolower($method));
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}
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return false;
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}
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/**
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* Announces the start of the test.
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* @param string $method Test method just started.
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* @access public
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*/
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function before($method) {
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$this->reporter->paintMethodStart($method);
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$this->observers = array();
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}
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/**
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* Sets up unit test wide variables at the start
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* of each test method. To be overridden in
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* actual user test cases.
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* @access public
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*/
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function setUp() {
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}
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/**
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* Clears the data set in the setUp() method call.
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* To be overridden by the user in actual user test cases.
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* @access public
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*/
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function tearDown() {
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}
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/**
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* Announces the end of the test. Includes private clean up.
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* @param string $method Test method just finished.
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* @access public
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*/
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function after($method) {
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for ($i = 0; $i < count($this->observers); $i++) {
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$this->observers[$i]->atTestEnd($method, $this);
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}
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$this->reporter->paintMethodEnd($method);
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}
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/**
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* Sets up an observer for the test end.
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* @param object $observer Must have atTestEnd()
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* method.
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* @access public
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*/
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function tell($observer) {
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$this->observers[] = &$observer;
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}
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/**
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* @deprecated
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*/
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function pass($message = "Pass") {
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if (! isset($this->reporter)) {
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trigger_error('Can only make assertions within test methods');
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}
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$this->reporter->paintPass(
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$message . $this->getAssertionLine());
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return true;
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}
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/**
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* Sends a fail event with a message.
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* @param string $message Message to send.
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* @access public
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*/
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function fail($message = "Fail") {
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if (! isset($this->reporter)) {
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trigger_error('Can only make assertions within test methods');
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}
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$this->reporter->paintFail(
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$message . $this->getAssertionLine());
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return false;
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}
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/**
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* Formats a PHP error and dispatches it to the
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* reporter.
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* @param integer $severity PHP error code.
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* @param string $message Text of error.
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* @param string $file File error occoured in.
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* @param integer $line Line number of error.
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* @access public
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*/
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function error($severity, $message, $file, $line) {
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if (! isset($this->reporter)) {
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trigger_error('Can only make assertions within test methods');
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}
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$this->reporter->paintError(
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"Unexpected PHP error [$message] severity [$severity] in [$file line $line]");
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}
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/**
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* Formats an exception and dispatches it to the
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* reporter.
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* @param Exception $exception Object thrown.
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* @access public
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*/
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function exception($exception) {
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$this->reporter->paintException($exception);
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}
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/**
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* For user defined expansion of the available messages.
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* @param string $type Tag for sorting the signals.
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* @param mixed $payload Extra user specific information.
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*/
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function signal($type, $payload) {
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if (! isset($this->reporter)) {
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trigger_error('Can only make assertions within test methods');
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}
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$this->reporter->paintSignal($type, $payload);
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}
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/**
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* Runs an expectation directly, for extending the
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* tests with new expectation classes.
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* @param SimpleExpectation $expectation Expectation subclass.
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* @param mixed $compare Value to compare.
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* @param string $message Message to display.
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* @return boolean True on pass
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* @access public
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*/
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function assert($expectation, $compare, $message = '%s') {
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if ($expectation->test($compare)) {
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return $this->pass(sprintf(
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$message,
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$expectation->overlayMessage($compare, $this->reporter->getDumper())));
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} else {
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return $this->fail(sprintf(
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$message,
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$expectation->overlayMessage($compare, $this->reporter->getDumper())));
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}
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}
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/**
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* Uses a stack trace to find the line of an assertion.
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* @return string Line number of first assert*
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* method embedded in format string.
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* @access public
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*/
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function getAssertionLine() {
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$trace = new SimpleStackTrace(array('assert', 'expect', 'pass', 'fail', 'skip'));
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return $trace->traceMethod();
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}
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/**
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* Sends a formatted dump of a variable to the
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* test suite for those emergency debugging
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* situations.
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* @param mixed $variable Variable to display.
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* @param string $message Message to display.
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* @return mixed The original variable.
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* @access public
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*/
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function dump($variable, $message = false) {
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$dumper = $this->reporter->getDumper();
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$formatted = $dumper->dump($variable);
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if ($message) {
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$formatted = $message . "\n" . $formatted;
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}
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$this->reporter->paintFormattedMessage($formatted);
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return $variable;
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}
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/**
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* Accessor for the number of subtests including myelf.
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* @return integer Number of test cases.
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* @access public
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*/
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function getSize() {
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return 1;
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}
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}
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/**
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* Helps to extract test cases automatically from a file.
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* @package SimpleTest
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* @subpackage UnitTester
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*/
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class SimpleFileLoader {
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/**
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* Builds a test suite from a library of test cases.
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* The new suite is composed into this one.
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* @param string $test_file File name of library with
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* test case classes.
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* @return TestSuite The new test suite.
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* @access public
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*/
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function load($test_file) {
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$existing_classes = get_declared_classes();
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$existing_globals = get_defined_vars();
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include_once($test_file);
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$new_globals = get_defined_vars();
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$this->makeFileVariablesGlobal($existing_globals, $new_globals);
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$new_classes = array_diff(get_declared_classes(), $existing_classes);
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if (empty($new_classes)) {
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$new_classes = $this->scrapeClassesFromFile($test_file);
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}
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$classes = $this->selectRunnableTests($new_classes);
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return $this->createSuiteFromClasses($test_file, $classes);
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}
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/**
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* Imports new variables into the global namespace.
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* @param hash $existing Variables before the file was loaded.
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* @param hash $new Variables after the file was loaded.
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* @access private
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*/
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protected function makeFileVariablesGlobal($existing, $new) {
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$globals = array_diff(array_keys($new), array_keys($existing));
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foreach ($globals as $global) {
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$GLOBALS[$global] = $new[$global];
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}
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}
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/**
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* Lookup classnames from file contents, in case the
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* file may have been included before.
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* Note: This is probably too clever by half. Figuring this
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* out after a failed test case is going to be tricky for us,
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* never mind the user. A test case should not be included
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* twice anyway.
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* @param string $test_file File name with classes.
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* @access private
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*/
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protected function scrapeClassesFromFile($test_file) {
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preg_match_all('~^\s*class\s+(\w+)(\s+(extends|implements)\s+\w+)*\s*\{~mi',
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file_get_contents($test_file),
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$matches );
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return $matches[1];
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}
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/**
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* Calculates the incoming test cases. Skips abstract
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* and ignored classes.
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* @param array $candidates Candidate classes.
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* @return array New classes which are test
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* cases that shouldn't be ignored.
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* @access public
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*/
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function selectRunnableTests($candidates) {
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$classes = array();
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foreach ($candidates as $class) {
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if (TestSuite::getBaseTestCase($class)) {
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$reflection = new SimpleReflection($class);
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if ($reflection->isAbstract()) {
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SimpleTest::ignore($class);
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} else {
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$classes[] = $class;
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}
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}
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}
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return $classes;
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}
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/**
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* Builds a test suite from a class list.
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* @param string $title Title of new group.
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* @param array $classes Test classes.
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* @return TestSuite Group loaded with the new
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* test cases.
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* @access public
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*/
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function createSuiteFromClasses($title, $classes) {
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if (count($classes) == 0) {
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$suite = new BadTestSuite($title, "No runnable test cases in [$title]");
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return $suite;
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}
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SimpleTest::ignoreParentsIfIgnored($classes);
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$suite = new TestSuite($title);
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foreach ($classes as $class) {
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if (! SimpleTest::isIgnored($class)) {
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$suite->add($class);
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}
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}
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return $suite;
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}
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}
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/**
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* This is a composite test class for combining
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* test cases and other RunnableTest classes into
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* a group test.
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* @package SimpleTest
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* @subpackage UnitTester
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*/
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class TestSuite {
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private $label;
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private $test_cases;
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/**
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* Sets the name of the test suite.
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* @param string $label Name sent at the start and end
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* of the test.
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* @access public
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*/
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function TestSuite($label = false) {
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$this->label = $label;
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$this->test_cases = array();
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}
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/**
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* Accessor for the test name for subclasses. If the suite
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* wraps a single test case the label defaults to the name of that test.
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* @return string Name of the test.
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* @access public
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*/
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function getLabel() {
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if (! $this->label) {
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return ($this->getSize() == 1) ?
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get_class($this->test_cases[0]) : get_class($this);
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} else {
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return $this->label;
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}
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}
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/**
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* Adds a test into the suite by instance or class. The class will
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* be instantiated if it's a test suite.
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* @param SimpleTestCase $test_case Suite or individual test
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* case implementing the
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* runnable test interface.
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* @access public
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*/
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function add($test_case) {
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if (! is_string($test_case)) {
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$this->test_cases[] = $test_case;
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} elseif (TestSuite::getBaseTestCase($test_case) == 'testsuite') {
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$this->test_cases[] = new $test_case();
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} else {
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$this->test_cases[] = $test_case;
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}
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}
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/**
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* Builds a test suite from a library of test cases.
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* The new suite is composed into this one.
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* @param string $test_file File name of library with
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* test case classes.
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* @access public
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*/
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function addFile($test_file) {
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$extractor = new SimpleFileLoader();
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$this->add($extractor->load($test_file));
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}
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/**
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* Delegates to a visiting collector to add test
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* files.
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* @param string $path Path to scan from.
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* @param SimpleCollector $collector Directory scanner.
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* @access public
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*/
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function collect($path, $collector) {
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$collector->collect($this, $path);
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}
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/**
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* Invokes run() on all of the held test cases, instantiating
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* them if necessary.
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* @param SimpleReporter $reporter Current test reporter.
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* @access public
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*/
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function run($reporter) {
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$reporter->paintGroupStart($this->getLabel(), $this->getSize());
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for ($i = 0, $count = count($this->test_cases); $i < $count; $i++) {
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if (is_string($this->test_cases[$i])) {
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$class = $this->test_cases[$i];
|
|
$test = new $class();
|
|
$test->run($reporter);
|
|
unset($test);
|
|
} else {
|
|
$this->test_cases[$i]->run($reporter);
|
|
}
|
|
}
|
|
$reporter->paintGroupEnd($this->getLabel());
|
|
return $reporter->getStatus();
|
|
}
|
|
|
|
/**
|
|
* Number of contained test cases.
|
|
* @return integer Total count of cases in the group.
|
|
* @access public
|
|
*/
|
|
function getSize() {
|
|
$count = 0;
|
|
foreach ($this->test_cases as $case) {
|
|
if (is_string($case)) {
|
|
if (! SimpleTest::isIgnored($case)) {
|
|
$count++;
|
|
}
|
|
} else {
|
|
$count += $case->getSize();
|
|
}
|
|
}
|
|
return $count;
|
|
}
|
|
|
|
/**
|
|
* Test to see if a class is derived from the
|
|
* SimpleTestCase class.
|
|
* @param string $class Class name.
|
|
* @access public
|
|
*/
|
|
static function getBaseTestCase($class) {
|
|
while ($class = get_parent_class($class)) {
|
|
$class = strtolower($class);
|
|
if ($class == 'simpletestcase' || $class == 'testsuite') {
|
|
return $class;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This is a failing group test for when a test suite hasn't
|
|
* loaded properly.
|
|
* @package SimpleTest
|
|
* @subpackage UnitTester
|
|
*/
|
|
class BadTestSuite {
|
|
private $label;
|
|
private $error;
|
|
|
|
/**
|
|
* Sets the name of the test suite and error message.
|
|
* @param string $label Name sent at the start and end
|
|
* of the test.
|
|
* @access public
|
|
*/
|
|
function BadTestSuite($label, $error) {
|
|
$this->label = $label;
|
|
$this->error = $error;
|
|
}
|
|
|
|
/**
|
|
* Accessor for the test name for subclasses.
|
|
* @return string Name of the test.
|
|
* @access public
|
|
*/
|
|
function getLabel() {
|
|
return $this->label;
|
|
}
|
|
|
|
/**
|
|
* Sends a single error to the reporter.
|
|
* @param SimpleReporter $reporter Current test reporter.
|
|
* @access public
|
|
*/
|
|
function run($reporter) {
|
|
$reporter->paintGroupStart($this->getLabel(), $this->getSize());
|
|
$reporter->paintFail('Bad TestSuite [' . $this->getLabel() .
|
|
'] with error [' . $this->error . ']');
|
|
$reporter->paintGroupEnd($this->getLabel());
|
|
return $reporter->getStatus();
|
|
}
|
|
|
|
/**
|
|
* Number of contained test cases. Always zero.
|
|
* @return integer Total count of cases in the group.
|
|
* @access public
|
|
*/
|
|
function getSize() {
|
|
return 0;
|
|
}
|
|
}
|
|
?>
|