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postfixadmin/tests/simpletest/test_case.php

684 lines
24 KiB
PHP

<?php
/**
* Base include file for SimpleTest
* @package SimpleTest
* @subpackage UnitTester
* @version $Id: test_case.php,v 1.35 2006/11/27 18:38:48 jsweat Exp $
*/
/**#@+
* Includes SimpleTest files and defined the root constant
* for dependent libraries.
*/
require_once(dirname(__FILE__) . '/invoker.php');
require_once(dirname(__FILE__) . '/errors.php');
require_once(dirname(__FILE__) . '/compatibility.php');
require_once(dirname(__FILE__) . '/scorer.php');
require_once(dirname(__FILE__) . '/expectation.php');
require_once(dirname(__FILE__) . '/dumper.php');
require_once(dirname(__FILE__) . '/simpletest.php');
if (version_compare(phpversion(), '5') >= 0) {
require_once(dirname(__FILE__) . '/exceptions.php');
require_once(dirname(__FILE__) . '/reflection_php5.php');
} else {
require_once(dirname(__FILE__) . '/reflection_php4.php');
}
if (! defined('SIMPLE_TEST')) {
/**
* @ignore
*/
define('SIMPLE_TEST', dirname(__FILE__) . DIRECTORY_SEPARATOR);
}
/**#@-*/
/**
* Basic test case. This is the smallest unit of a test
* suite. It searches for
* all methods that start with the the string "test" and
* runs them. Working test cases extend this class.
* @package SimpleTest
* @subpackage UnitTester
*/
class SimpleTestCase {
var $_label = false;
var $_reporter;
var $_observers;
var $_should_skip = false;
/**
* Sets up the test with no display.
* @param string $label If no test name is given then
* the class name is used.
* @access public
*/
function SimpleTestCase($label = false) {
if ($label) {
$this->_label = $label;
}
}
/**
* Accessor for the test name for subclasses.
* @return string Name of the test.
* @access public
*/
function getLabel() {
return $this->_label ? $this->_label : get_class($this);
}
/**
* This is a placeholder for skipping tests. In this
* method you place skipIf() and skipUnless() calls to
* set the skipping state.
* @access public
*/
function skip() {
}
/**
* Will issue a message to the reporter and tell the test
* case to skip if the incoming flag is true.
* @param string $should_skip Condition causing the tests to be skipped.
* @param string $message Text of skip condition.
* @access public
*/
function skipIf($should_skip, $message = '%s') {
if ($should_skip && ! $this->_should_skip) {
$this->_should_skip = true;
$message = sprintf($message, 'Skipping [' . get_class($this) . ']');
$this->_reporter->paintSkip($message . $this->getAssertionLine());
}
}
/**
* Will issue a message to the reporter and tell the test
* case to skip if the incoming flag is false.
* @param string $shouldnt_skip Condition causing the tests to be run.
* @param string $message Text of skip condition.
* @access public
*/
function skipUnless($shouldnt_skip, $message = false) {
$this->skipIf(! $shouldnt_skip, $message);
}
/**
* Used to invoke the single tests.
* @return SimpleInvoker Individual test runner.
* @access public
*/
function &createInvoker() {
$invoker = &new SimpleErrorTrappingInvoker(new SimpleInvoker($this));
if (version_compare(phpversion(), '5') >= 0) {
$invoker = &new SimpleExceptionTrappingInvoker($invoker);
}
return $invoker;
}
/**
* Uses reflection to run every method within itself
* starting with the string "test" unless a method
* is specified.
* @param SimpleReporter $reporter Current test reporter.
* @return boolean True if all tests passed.
* @access public
*/
function run(&$reporter) {
$context = &SimpleTest::getContext();
$context->setTest($this);
$context->setReporter($reporter);
$this->_reporter = &$reporter;
$reporter->paintCaseStart($this->getLabel());
$this->skip();
if (! $this->_should_skip) {
foreach ($this->getTests() as $method) {
if ($reporter->shouldInvoke($this->getLabel(), $method)) {
$invoker = &$this->_reporter->createInvoker($this->createInvoker());
$invoker->before($method);
$invoker->invoke($method);
$invoker->after($method);
}
}
}
$reporter->paintCaseEnd($this->getLabel());
unset($this->_reporter);
return $reporter->getStatus();
}
/**
* Gets a list of test names. Normally that will
* be all internal methods that start with the
* name "test". This method should be overridden
* if you want a different rule.
* @return array List of test names.
* @access public
*/
function getTests() {
$methods = array();
foreach (get_class_methods(get_class($this)) as $method) {
if ($this->_isTest($method)) {
$methods[] = $method;
}
}
return $methods;
}
/**
* Tests to see if the method is a test that should
* be run. Currently any method that starts with 'test'
* is a candidate unless it is the constructor.
* @param string $method Method name to try.
* @return boolean True if test method.
* @access protected
*/
function _isTest($method) {
if (strtolower(substr($method, 0, 4)) == 'test') {
return ! SimpleTestCompatibility::isA($this, strtolower($method));
}
return false;
}
/**
* Announces the start of the test.
* @param string $method Test method just started.
* @access public
*/
function before($method) {
$this->_reporter->paintMethodStart($method);
$this->_observers = array();
}
/**
* Sets up unit test wide variables at the start
* of each test method. To be overridden in
* actual user test cases.
* @access public
*/
function setUp() {
}
/**
* Clears the data set in the setUp() method call.
* To be overridden by the user in actual user test cases.
* @access public
*/
function tearDown() {
}
/**
* Announces the end of the test. Includes private clean up.
* @param string $method Test method just finished.
* @access public
*/
function after($method) {
for ($i = 0; $i < count($this->_observers); $i++) {
$this->_observers[$i]->atTestEnd($method, $this);
}
$this->_reporter->paintMethodEnd($method);
}
/**
* Sets up an observer for the test end.
* @param object $observer Must have atTestEnd()
* method.
* @access public
*/
function tell(&$observer) {
$this->_observers[] = &$observer;
}
/**
* @deprecated
*/
function pass($message = "Pass") {
if (! isset($this->_reporter)) {
trigger_error('Can only make assertions within test methods');
}
$this->_reporter->paintPass(
$message . $this->getAssertionLine());
return true;
}
/**
* Sends a fail event with a message.
* @param string $message Message to send.
* @access public
*/
function fail($message = "Fail") {
if (! isset($this->_reporter)) {
trigger_error('Can only make assertions within test methods');
}
$this->_reporter->paintFail(
$message . $this->getAssertionLine());
return false;
}
/**
* Formats a PHP error and dispatches it to the
* reporter.
* @param integer $severity PHP error code.
* @param string $message Text of error.
* @param string $file File error occoured in.
* @param integer $line Line number of error.
* @access public
*/
function error($severity, $message, $file, $line) {
if (! isset($this->_reporter)) {
trigger_error('Can only make assertions within test methods');
}
$this->_reporter->paintError(
"Unexpected PHP error [$message] severity [$severity] in [$file line $line]");
}
/**
* Formats an exception and dispatches it to the
* reporter.
* @param Exception $exception Object thrown.
* @access public
*/
function exception($exception) {
$this->_reporter->paintException($exception);
}
/**
* @deprecated
*/
function signal($type, &$payload) {
if (! isset($this->_reporter)) {
trigger_error('Can only make assertions within test methods');
}
$this->_reporter->paintSignal($type, $payload);
}
/**
* Runs an expectation directly, for extending the
* tests with new expectation classes.
* @param SimpleExpectation $expectation Expectation subclass.
* @param mixed $compare Value to compare.
* @param string $message Message to display.
* @return boolean True on pass
* @access public
*/
function assert(&$expectation, $compare, $message = '%s') {
if ($expectation->test($compare)) {
return $this->pass(sprintf(
$message,
$expectation->overlayMessage($compare, $this->_reporter->getDumper())));
} else {
return $this->fail(sprintf(
$message,
$expectation->overlayMessage($compare, $this->_reporter->getDumper())));
}
}
/**
* @deprecated
*/
function assertExpectation(&$expectation, $compare, $message = '%s') {
return $this->assert($expectation, $compare, $message);
}
/**
* Uses a stack trace to find the line of an assertion.
* @return string Line number of first assert*
* method embedded in format string.
* @access public
*/
function getAssertionLine() {
$trace = new SimpleStackTrace(array('assert', 'expect', 'pass', 'fail', 'skip'));
return $trace->traceMethod();
}
/**
* Sends a formatted dump of a variable to the
* test suite for those emergency debugging
* situations.
* @param mixed $variable Variable to display.
* @param string $message Message to display.
* @return mixed The original variable.
* @access public
*/
function dump($variable, $message = false) {
$dumper = $this->_reporter->getDumper();
$formatted = $dumper->dump($variable);
if ($message) {
$formatted = $message . "\n" . $formatted;
}
$this->_reporter->paintFormattedMessage($formatted);
return $variable;
}
/**
* @deprecated
*/
function sendMessage($message) {
$this->_reporter->PaintMessage($message);
}
/**
* Accessor for the number of subtests.
* @return integer Number of test cases.
* @access public
* @static
*/
function getSize() {
return 1;
}
}
/**
* This is a composite test class for combining
* test cases and other RunnableTest classes into
* a group test.
* @package SimpleTest
* @subpackage UnitTester
*/
class TestSuite {
var $_label;
var $_test_cases;
var $_old_track_errors;
var $_xdebug_is_enabled;
/**
* Sets the name of the test suite.
* @param string $label Name sent at the start and end
* of the test.
* @access public
*/
function TestSuite($label = false) {
$this->_label = $label ? $label : get_class($this);
$this->_test_cases = array();
$this->_old_track_errors = ini_get('track_errors');
$this->_xdebug_is_enabled = function_exists('xdebug_is_enabled') ?
xdebug_is_enabled() : false;
}
/**
* Accessor for the test name for subclasses.
* @return string Name of the test.
* @access public
*/
function getLabel() {
return $this->_label;
}
/**
* Adds a test into the suite. Can be either a group
* test or some other unit test.
* @param SimpleTestCase $test_case Suite or individual test
* case implementing the
* runnable test interface.
* @access public
*/
function addTestCase(&$test_case) {
$this->_test_cases[] = &$test_case;
}
/**
* Adds a test into the suite by class name. The class will
* be instantiated as needed.
* @param SimpleTestCase $test_case Suite or individual test
* case implementing the
* runnable test interface.
* @access public
*/
function addTestClass($class) {
if ($this->_getBaseTestCase($class) == 'testsuite' || $this->_getBaseTestCase($class) == 'grouptest') {
$this->_test_cases[] = &new $class();
} else {
$this->_test_cases[] = $class;
}
}
/**
* Builds a group test from a library of test cases.
* The new group is composed into this one.
* @param string $test_file File name of library with
* test case classes.
* @access public
*/
function addTestFile($test_file) {
$existing_classes = get_declared_classes();
if ($error = $this->_requireWithError($test_file)) {
$this->addTestCase(new BadTestSuite($test_file, $error));
return;
}
$classes = $this->_selectRunnableTests($existing_classes, get_declared_classes());
if (count($classes) == 0) {
$this->addTestCase(new BadTestSuite($test_file, "No runnable test cases in [$test_file]"));
return;
}
$group = &$this->_createGroupFromClasses($test_file, $classes);
$this->addTestCase($group);
}
/**
* Requires a source file recording any syntax errors.
* @param string $file File name to require in.
* @return string/boolean An error message on failure or false
* if no errors.
* @access private
*/
function _requireWithError($file) {
$this->_enableErrorReporting();
include($file);
$error = isset($php_errormsg) ? $php_errormsg : false;
$this->_disableErrorReporting();
$self_inflicted_errors = array(
'/Assigning the return value of new by reference/i',
'/var: Deprecated/i',
'/Non-static method/i');
foreach ($self_inflicted_errors as $pattern) {
if (preg_match($pattern, $error)) {
return false;
}
}
return $error;
}
/**
* Sets up detection of parse errors. Note that XDebug
* interferes with this and has to be disabled. This is
* to make sure the correct error code is returned
* from unattended scripts.
* @access private
*/
function _enableErrorReporting() {
if ($this->_xdebug_is_enabled) {
xdebug_disable();
}
ini_set('track_errors', true);
}
/**
* Resets detection of parse errors to their old values.
* This is to make sure the correct error code is returned
* from unattended scripts.
* @access private
*/
function _disableErrorReporting() {
ini_set('track_errors', $this->_old_track_errors);
if ($this->_xdebug_is_enabled) {
xdebug_enable();
}
}
/**
* Calculates the incoming test cases from a before
* and after list of loaded classes. Skips abstract
* classes.
* @param array $existing_classes Classes before require().
* @param array $new_classes Classes after require().
* @return array New classes which are test
* cases that shouldn't be ignored.
* @access private
*/
function _selectRunnableTests($existing_classes, $new_classes) {
$classes = array();
foreach ($new_classes as $class) {
if (in_array($class, $existing_classes)) {
continue;
}
if ($this->_getBaseTestCase($class)) {
$reflection = new SimpleReflection($class);
if ($reflection->isAbstract()) {
SimpleTest::ignore($class);
}
$classes[] = $class;
}
}
return $classes;
}
/**
* Builds a group test from a class list.
* @param string $title Title of new group.
* @param array $classes Test classes.
* @return TestSuite Group loaded with the new
* test cases.
* @access private
*/
function &_createGroupFromClasses($title, $classes) {
SimpleTest::ignoreParentsIfIgnored($classes);
$group = &new TestSuite($title);
foreach ($classes as $class) {
if (! SimpleTest::isIgnored($class)) {
$group->addTestClass($class);
}
}
return $group;
}
/**
* Test to see if a class is derived from the
* SimpleTestCase class.
* @param string $class Class name.
* @access private
*/
function _getBaseTestCase($class) {
while ($class = get_parent_class($class)) {
$class = strtolower($class);
if ($class == 'simpletestcase' || $class == 'testsuite' || $class == 'grouptest') {
return $class;
}
}
return false;
}
/**
* Delegates to a visiting collector to add test
* files.
* @param string $path Path to scan from.
* @param SimpleCollector $collector Directory scanner.
* @access public
*/
function collect($path, &$collector) {
$collector->collect($this, $path);
}
/**
* Invokes run() on all of the held test cases, instantiating
* them if necessary.
* @param SimpleReporter $reporter Current test reporter.
* @access public
*/
function run(&$reporter) {
$reporter->paintGroupStart($this->getLabel(), $this->getSize());
for ($i = 0, $count = count($this->_test_cases); $i < $count; $i++) {
if (is_string($this->_test_cases[$i])) {
$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)) {
$count++;
} else {
$count += $case->getSize();
}
}
return $count;
}
}
/**
* @package SimpleTest
* @subpackage UnitTester
* @deprecated
*/
class GroupTest extends TestSuite { }
/**
* This is a failing group test for when a test suite hasn't
* loaded properly.
* @package SimpleTest
* @subpackage UnitTester
*/
class BadTestSuite {
var $_label;
var $_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;
}
}
/**
* @package SimpleTest
* @subpackage UnitTester
* @deprecated
*/
class BadGroupTest extends BadTestSuite { }
?>