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- <?php
- /**
- * base include file for SimpleTest
- * @package SimpleTest
- * @subpackage UnitTester
- * @version $Id: expectation.php 1788 2008-04-27 11:01:59Z pp11 $
- */
-
- /**#@+
- * include other SimpleTest class files
- */
- require_once(dirname(__FILE__) . '/dumper.php');
- require_once(dirname(__FILE__) . '/compatibility.php');
- /**#@-*/
-
- /**
- * Assertion that can display failure information.
- * Also includes various helper methods.
- * @package SimpleTest
- * @subpackage UnitTester
- * @abstract
- */
- class SimpleExpectation {
- protected $dumper = false;
- private $message;
-
- /**
- * Creates a dumper for displaying values and sets
- * the test message.
- * @param string $message Customised message on failure.
- */
- function __construct($message = '%s') {
- $this->message = $message;
- }
-
- /**
- * Tests the expectation. True if correct.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- * @abstract
- */
- function test($compare) {
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- * @abstract
- */
- function testMessage($compare) {
- }
-
- /**
- * Overlays the generated message onto the stored user
- * message. An additional message can be interjected.
- * @param mixed $compare Comparison value.
- * @param SimpleDumper $dumper For formatting the results.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function overlayMessage($compare, $dumper) {
- $this->dumper = $dumper;
- return sprintf($this->message, $this->testMessage($compare));
- }
-
- /**
- * Accessor for the dumper.
- * @return SimpleDumper Current value dumper.
- * @access protected
- */
- protected function getDumper() {
- if (! $this->dumper) {
- $dumper = new SimpleDumper();
- return $dumper;
- }
- return $this->dumper;
- }
-
- /**
- * Test to see if a value is an expectation object.
- * A useful utility method.
- * @param mixed $expectation Hopefully an Expectation
- * class.
- * @return boolean True if descended from
- * this class.
- * @access public
- */
- static function isExpectation($expectation) {
- return is_object($expectation) &&
- SimpleTestCompatibility::isA($expectation, 'SimpleExpectation');
- }
- }
-
- /**
- * A wildcard expectation always matches.
- * @package SimpleTest
- * @subpackage MockObjects
- */
- class AnythingExpectation extends SimpleExpectation {
-
- /**
- * Tests the expectation. Always true.
- * @param mixed $compare Ignored.
- * @return boolean True.
- * @access public
- */
- function test($compare) {
- return true;
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- return 'Anything always matches [' . $dumper->describeValue($compare) . ']';
- }
- }
-
- /**
- * An expectation that never matches.
- * @package SimpleTest
- * @subpackage MockObjects
- */
- class FailedExpectation extends SimpleExpectation {
-
- /**
- * Tests the expectation. Always false.
- * @param mixed $compare Ignored.
- * @return boolean True.
- * @access public
- */
- function test($compare) {
- return false;
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- return 'Failed expectation never matches [' . $dumper->describeValue($compare) . ']';
- }
- }
-
- /**
- * An expectation that passes on boolean true.
- * @package SimpleTest
- * @subpackage MockObjects
- */
- class TrueExpectation extends SimpleExpectation {
-
- /**
- * Tests the expectation.
- * @param mixed $compare Should be true.
- * @return boolean True on match.
- * @access public
- */
- function test($compare) {
- return (boolean)$compare;
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- return 'Expected true, got [' . $dumper->describeValue($compare) . ']';
- }
- }
-
- /**
- * An expectation that passes on boolean false.
- * @package SimpleTest
- * @subpackage MockObjects
- */
- class FalseExpectation extends SimpleExpectation {
-
- /**
- * Tests the expectation.
- * @param mixed $compare Should be false.
- * @return boolean True on match.
- * @access public
- */
- function test($compare) {
- return ! (boolean)$compare;
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- return 'Expected false, got [' . $dumper->describeValue($compare) . ']';
- }
- }
-
- /**
- * Test for equality.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class EqualExpectation extends SimpleExpectation {
- private $value;
-
- /**
- * Sets the value to compare against.
- * @param mixed $value Test value to match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($value, $message = '%s') {
- parent::__construct($message);
- $this->value = $value;
- }
-
- /**
- * Tests the expectation. True if it matches the
- * held value.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return (($this->value == $compare) && ($compare == $this->value));
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- if ($this->test($compare)) {
- return "Equal expectation [" . $this->dumper->describeValue($this->value) . "]";
- } else {
- return "Equal expectation fails " .
- $this->dumper->describeDifference($this->value, $compare);
- }
- }
-
- /**
- * Accessor for comparison value.
- * @return mixed Held value to compare with.
- * @access protected
- */
- protected function getValue() {
- return $this->value;
- }
- }
-
- /**
- * Test for inequality.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class NotEqualExpectation extends EqualExpectation {
-
- /**
- * Sets the value to compare against.
- * @param mixed $value Test value to match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($value, $message = '%s') {
- parent::__construct($value, $message);
- }
-
- /**
- * Tests the expectation. True if it differs from the
- * held value.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return ! parent::test($compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- if ($this->test($compare)) {
- return "Not equal expectation passes " .
- $dumper->describeDifference($this->getValue(), $compare);
- } else {
- return "Not equal expectation fails [" .
- $dumper->describeValue($this->getValue()) .
- "] matches";
- }
- }
- }
-
- /**
- * Test for being within a range.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class WithinMarginExpectation extends SimpleExpectation {
- private $upper;
- private $lower;
-
- /**
- * Sets the value to compare against and the fuzziness of
- * the match. Used for comparing floating point values.
- * @param mixed $value Test value to match.
- * @param mixed $margin Fuzziness of match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($value, $margin, $message = '%s') {
- parent::__construct($message);
- $this->upper = $value + $margin;
- $this->lower = $value - $margin;
- }
-
- /**
- * Tests the expectation. True if it matches the
- * held value.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return (($compare <= $this->upper) && ($compare >= $this->lower));
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- if ($this->test($compare)) {
- return $this->withinMessage($compare);
- } else {
- return $this->outsideMessage($compare);
- }
- }
-
- /**
- * Creates a the message for being within the range.
- * @param mixed $compare Value being tested.
- * @access private
- */
- protected function withinMessage($compare) {
- return "Within expectation [" . $this->dumper->describeValue($this->lower) . "] and [" .
- $this->dumper->describeValue($this->upper) . "]";
- }
-
- /**
- * Creates a the message for being within the range.
- * @param mixed $compare Value being tested.
- * @access private
- */
- protected function outsideMessage($compare) {
- if ($compare > $this->upper) {
- return "Outside expectation " .
- $this->dumper->describeDifference($compare, $this->upper);
- } else {
- return "Outside expectation " .
- $this->dumper->describeDifference($compare, $this->lower);
- }
- }
- }
-
- /**
- * Test for being outside of a range.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class OutsideMarginExpectation extends WithinMarginExpectation {
-
- /**
- * Sets the value to compare against and the fuzziness of
- * the match. Used for comparing floating point values.
- * @param mixed $value Test value to not match.
- * @param mixed $margin Fuzziness of match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($value, $margin, $message = '%s') {
- parent::__construct($value, $margin, $message);
- }
-
- /**
- * Tests the expectation. True if it matches the
- * held value.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return ! parent::test($compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- if (! $this->test($compare)) {
- return $this->withinMessage($compare);
- } else {
- return $this->outsideMessage($compare);
- }
- }
- }
-
- /**
- * Test for reference.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class ReferenceExpectation {
- private $value;
-
- /**
- * Sets the reference value to compare against.
- * @param mixed $value Test reference to match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct(&$value, $message = '%s') {
- $this->message = $message;
- $this->value = &$value;
- }
-
- /**
- * Tests the expectation. True if it exactly
- * references the held value.
- * @param mixed $compare Comparison reference.
- * @return boolean True if correct.
- * @access public
- */
- function test(&$compare) {
- return SimpleTestCompatibility::isReference($this->value, $compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- if ($this->test($compare)) {
- return "Reference expectation [" . $this->dumper->describeValue($this->value) . "]";
- } else {
- return "Reference expectation fails " .
- $this->dumper->describeDifference($this->value, $compare);
- }
- }
-
- /**
- * Overlays the generated message onto the stored user
- * message. An additional message can be interjected.
- * @param mixed $compare Comparison value.
- * @param SimpleDumper $dumper For formatting the results.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function overlayMessage($compare, $dumper) {
- $this->dumper = $dumper;
- return sprintf($this->message, $this->testMessage($compare));
- }
-
- /**
- * Accessor for the dumper.
- * @return SimpleDumper Current value dumper.
- * @access protected
- */
- protected function getDumper() {
- if (! $this->dumper) {
- $dumper = new SimpleDumper();
- return $dumper;
- }
- return $this->dumper;
- }
- }
-
- /**
- * Test for identity.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class IdenticalExpectation extends EqualExpectation {
-
- /**
- * Sets the value to compare against.
- * @param mixed $value Test value to match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($value, $message = '%s') {
- parent::__construct($value, $message);
- }
-
- /**
- * Tests the expectation. True if it exactly
- * matches the held value.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return SimpleTestCompatibility::isIdentical($this->getValue(), $compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- if ($this->test($compare)) {
- return "Identical expectation [" . $dumper->describeValue($this->getValue()) . "]";
- } else {
- return "Identical expectation [" . $dumper->describeValue($this->getValue()) .
- "] fails with [" .
- $dumper->describeValue($compare) . "] " .
- $dumper->describeDifference($this->getValue(), $compare, TYPE_MATTERS);
- }
- }
- }
-
- /**
- * Test for non-identity.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class NotIdenticalExpectation extends IdenticalExpectation {
-
- /**
- * Sets the value to compare against.
- * @param mixed $value Test value to match.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($value, $message = '%s') {
- parent::__construct($value, $message);
- }
-
- /**
- * Tests the expectation. True if it differs from the
- * held value.
- * @param mixed $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return ! parent::test($compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- if ($this->test($compare)) {
- return "Not identical expectation passes " .
- $dumper->describeDifference($this->getValue(), $compare, TYPE_MATTERS);
- } else {
- return "Not identical expectation [" . $dumper->describeValue($this->getValue()) . "] matches";
- }
- }
- }
-
- /**
- * Test for a pattern using Perl regex rules.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class PatternExpectation extends SimpleExpectation {
- private $pattern;
-
- /**
- * Sets the value to compare against.
- * @param string $pattern Pattern to search for.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($pattern, $message = '%s') {
- parent::__construct($message);
- $this->pattern = $pattern;
- }
-
- /**
- * Accessor for the pattern.
- * @return string Perl regex as string.
- * @access protected
- */
- protected function getPattern() {
- return $this->pattern;
- }
-
- /**
- * Tests the expectation. True if the Perl regex
- * matches the comparison value.
- * @param string $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return (boolean)preg_match($this->getPattern(), $compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- if ($this->test($compare)) {
- return $this->describePatternMatch($this->getPattern(), $compare);
- } else {
- $dumper = $this->getDumper();
- return "Pattern [" . $this->getPattern() .
- "] not detected in [" .
- $dumper->describeValue($compare) . "]";
- }
- }
-
- /**
- * Describes a pattern match including the string
- * found and it's position.
- * @param string $pattern Regex to match against.
- * @param string $subject Subject to search.
- * @access protected
- */
- protected function describePatternMatch($pattern, $subject) {
- preg_match($pattern, $subject, $matches);
- $position = strpos($subject, $matches[0]);
- $dumper = $this->getDumper();
- return "Pattern [$pattern] detected at character [$position] in [" .
- $dumper->describeValue($subject) . "] as [" .
- $matches[0] . "] in region [" .
- $dumper->clipString($subject, 100, $position) . "]";
- }
- }
-
- /**
- * Fail if a pattern is detected within the
- * comparison.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class NoPatternExpectation extends PatternExpectation {
-
- /**
- * Sets the reject pattern
- * @param string $pattern Pattern to search for.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($pattern, $message = '%s') {
- parent::__construct($pattern, $message);
- }
-
- /**
- * Tests the expectation. False if the Perl regex
- * matches the comparison value.
- * @param string $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return ! parent::test($compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param string $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- if ($this->test($compare)) {
- $dumper = $this->getDumper();
- return "Pattern [" . $this->getPattern() .
- "] not detected in [" .
- $dumper->describeValue($compare) . "]";
- } else {
- return $this->describePatternMatch($this->getPattern(), $compare);
- }
- }
- }
-
- /**
- * Tests either type or class name if it's an object.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class IsAExpectation extends SimpleExpectation {
- private $type;
-
- /**
- * Sets the type to compare with.
- * @param string $type Type or class name.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($type, $message = '%s') {
- parent::__construct($message);
- $this->type = $type;
- }
-
- /**
- * Accessor for type to check against.
- * @return string Type or class name.
- * @access protected
- */
- protected function getType() {
- return $this->type;
- }
-
- /**
- * Tests the expectation. True if the type or
- * class matches the string value.
- * @param string $compare Comparison value.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- if (is_object($compare)) {
- return SimpleTestCompatibility::isA($compare, $this->type);
- } else {
- return (strtolower(gettype($compare)) == $this->canonicalType($this->type));
- }
- }
-
- /**
- * Coerces type name into a gettype() match.
- * @param string $type User type.
- * @return string Simpler type.
- * @access private
- */
- protected function canonicalType($type) {
- $type = strtolower($type);
- $map = array(
- 'bool' => 'boolean',
- 'float' => 'double',
- 'real' => 'double',
- 'int' => 'integer');
- if (isset($map[$type])) {
- $type = $map[$type];
- }
- return $type;
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- return "Value [" . $dumper->describeValue($compare) .
- "] should be type [" . $this->type . "]";
- }
- }
-
- /**
- * Tests either type or class name if it's an object.
- * Will succeed if the type does not match.
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class NotAExpectation extends IsAExpectation {
- private $type;
-
- /**
- * Sets the type to compare with.
- * @param string $type Type or class name.
- * @param string $message Customised message on failure.
- * @access public
- */
- function __construct($type, $message = '%s') {
- parent::__construct($type, $message);
- }
-
- /**
- * Tests the expectation. False if the type or
- * class matches the string value.
- * @param string $compare Comparison value.
- * @return boolean True if different.
- * @access public
- */
- function test($compare) {
- return ! parent::test($compare);
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- return "Value [" . $dumper->describeValue($compare) .
- "] should not be type [" . $this->getType() . "]";
- }
- }
-
- /**
- * Tests for existance of a method in an object
- * @package SimpleTest
- * @subpackage UnitTester
- */
- class MethodExistsExpectation extends SimpleExpectation {
- private $method;
-
- /**
- * Sets the value to compare against.
- * @param string $method Method to check.
- * @param string $message Customised message on failure.
- * @access public
- * @return void
- */
- function __construct($method, $message = '%s') {
- parent::__construct($message);
- $this->method = &$method;
- }
-
- /**
- * Tests the expectation. True if the method exists in the test object.
- * @param string $compare Comparison method name.
- * @return boolean True if correct.
- * @access public
- */
- function test($compare) {
- return (boolean)(is_object($compare) && method_exists($compare, $this->method));
- }
-
- /**
- * Returns a human readable test message.
- * @param mixed $compare Comparison value.
- * @return string Description of success
- * or failure.
- * @access public
- */
- function testMessage($compare) {
- $dumper = $this->getDumper();
- if (! is_object($compare)) {
- return 'No method on non-object [' . $dumper->describeValue($compare) . ']';
- }
- $method = $this->method;
- return "Object [" . $dumper->describeValue($compare) .
- "] should contain method [$method]";
- }
- }
- ?>
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