abstract class DrupalTestCase in Drupal 7
Base class for Drupal tests.
Do not extend this class, use one of the subclasses in this file.
Hierarchy
- class \DrupalTestCase
Expanded class hierarchy of DrupalTestCase
File
- modules/
simpletest/ drupal_web_test_case.php, line 20
View source
abstract class DrupalTestCase {
/**
* The test run ID.
*
* @var string
*/
protected $testId;
/**
* The database prefix of this test run.
*
* @var string
*/
protected $databasePrefix = NULL;
/**
* The original file directory, before it was changed for testing purposes.
*
* @var string
*/
protected $originalFileDirectory = NULL;
/**
* URL to the verbose output file directory.
*
* @var string
*/
protected $verboseDirectoryUrl;
/**
* Time limit for the test.
*/
protected $timeLimit = 500;
/**
* Whether to cache the installation part of the setUp() method.
*
* @var bool
*/
public $useSetupInstallationCache = FALSE;
/**
* Whether to cache the modules installation part of the setUp() method.
*
* @var bool
*/
public $useSetupModulesCache = FALSE;
/**
* Current results of this test case.
*
* @var Array
*/
public $results = array(
'#pass' => 0,
'#fail' => 0,
'#exception' => 0,
'#debug' => 0,
);
/**
* Assertions thrown in that test case.
*
* @var Array
*/
protected $assertions = array();
/**
* This class is skipped when looking for the source of an assertion.
*
* When displaying which function an assert comes from, it's not too useful
* to see "drupalWebTestCase->drupalLogin()', we would like to see the test
* that called it. So we need to skip the classes defining these helper
* methods.
*/
protected $skipClasses = array(
__CLASS__ => TRUE,
);
/**
* Flag to indicate whether the test has been set up.
*
* The setUp() method isolates the test from the parent Drupal site by
* creating a random prefix for the database and setting up a clean file
* storage directory. The tearDown() method then cleans up this test
* environment. We must ensure that setUp() has been run. Otherwise,
* tearDown() will act on the parent Drupal site rather than the test
* environment, destroying live data.
*/
protected $setup = FALSE;
protected $setupDatabasePrefix = FALSE;
protected $setupEnvironment = FALSE;
/**
* Constructor for DrupalTestCase.
*
* @param $test_id
* Tests with the same id are reported together.
*/
public function __construct($test_id = NULL) {
$this->testId = $test_id;
}
/**
* Internal helper: stores the assert.
*
* @param $status
* Can be 'pass', 'fail', 'exception'.
* TRUE is a synonym for 'pass', FALSE for 'fail'.
* @param $message
* The message string.
* @param $group
* Which group this assert belongs to.
* @param $caller
* By default, the assert comes from a function whose name starts with
* 'test'. Instead, you can specify where this assert originates from
* by passing in an associative array as $caller. Key 'file' is
* the name of the source file, 'line' is the line number and 'function'
* is the caller function itself.
*/
protected function assert($status, $message = '', $group = 'Other', array $caller = NULL) {
// Convert boolean status to string status.
if (is_bool($status)) {
$status = $status ? 'pass' : 'fail';
}
// Increment summary result counter.
$this->results['#' . $status]++;
// Get the function information about the call to the assertion method.
if (!$caller) {
$caller = $this
->getAssertionCall();
}
// Creation assertion array that can be displayed while tests are running.
$this->assertions[] = $assertion = array(
'test_id' => $this->testId,
'test_class' => get_class($this),
'status' => $status,
'message' => $message,
'message_group' => $group,
'function' => $caller['function'],
'line' => $caller['line'],
'file' => $caller['file'],
);
// Store assertion for display after the test has completed.
self::getDatabaseConnection()
->insert('simpletest')
->fields($assertion)
->execute();
// We do not use a ternary operator here to allow a breakpoint on
// test failure.
if ($status == 'pass') {
return TRUE;
}
else {
return FALSE;
}
}
/**
* Returns the database connection to the site running Simpletest.
*
* @return DatabaseConnection
* The database connection to use for inserting assertions.
*/
public static function getDatabaseConnection() {
try {
$connection = Database::getConnection('default', 'simpletest_original_default');
} catch (DatabaseConnectionNotDefinedException $e) {
// If the test was not set up, the simpletest_original_default
// connection does not exist.
$connection = Database::getConnection('default', 'default');
}
return $connection;
}
/**
* Store an assertion from outside the testing context.
*
* This is useful for inserting assertions that can only be recorded after
* the test case has been destroyed, such as PHP fatal errors. The caller
* information is not automatically gathered since the caller is most likely
* inserting the assertion on behalf of other code. In all other respects
* the method behaves just like DrupalTestCase::assert() in terms of storing
* the assertion.
*
* @return
* Message ID of the stored assertion.
*
* @see DrupalTestCase::assert()
* @see DrupalTestCase::deleteAssert()
*/
public static function insertAssert($test_id, $test_class, $status, $message = '', $group = 'Other', array $caller = array()) {
// Convert boolean status to string status.
if (is_bool($status)) {
$status = $status ? 'pass' : 'fail';
}
$caller += array(
'function' => t('Unknown'),
'line' => 0,
'file' => t('Unknown'),
);
$assertion = array(
'test_id' => $test_id,
'test_class' => $test_class,
'status' => $status,
'message' => $message,
'message_group' => $group,
'function' => $caller['function'],
'line' => $caller['line'],
'file' => $caller['file'],
);
return self::getDatabaseConnection()
->insert('simpletest')
->fields($assertion)
->execute();
}
/**
* Delete an assertion record by message ID.
*
* @param $message_id
* Message ID of the assertion to delete.
* @return
* TRUE if the assertion was deleted, FALSE otherwise.
*
* @see DrupalTestCase::insertAssert()
*/
public static function deleteAssert($message_id) {
return (bool) self::getDatabaseConnection()
->delete('simpletest')
->condition('message_id', $message_id)
->execute();
}
/**
* Cycles through backtrace until the first non-assertion method is found.
*
* @return
* Array representing the true caller.
*/
protected function getAssertionCall() {
$backtrace = debug_backtrace();
// The first element is the call. The second element is the caller.
// We skip calls that occurred in one of the methods of our base classes
// or in an assertion function.
while (($caller = $backtrace[1]) && (isset($caller['class']) && isset($this->skipClasses[$caller['class']]) || substr($caller['function'], 0, 6) == 'assert')) {
// We remove that call.
array_shift($backtrace);
}
return _drupal_get_last_caller($backtrace);
}
/**
* Check to see if a value is not false (not an empty string, 0, NULL, or FALSE).
*
* @param $value
* The value on which the assertion is to be done.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertTrue($value, $message = '', $group = 'Other') {
return $this
->assert((bool) $value, $message ? $message : t('Value @value is TRUE.', array(
'@value' => var_export($value, TRUE),
)), $group);
}
/**
* Check to see if a value is false (an empty string, 0, NULL, or FALSE).
*
* @param $value
* The value on which the assertion is to be done.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertFalse($value, $message = '', $group = 'Other') {
return $this
->assert(!$value, $message ? $message : t('Value @value is FALSE.', array(
'@value' => var_export($value, TRUE),
)), $group);
}
/**
* Check to see if a value is NULL.
*
* @param $value
* The value on which the assertion is to be done.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertNull($value, $message = '', $group = 'Other') {
return $this
->assert(!isset($value), $message ? $message : t('Value @value is NULL.', array(
'@value' => var_export($value, TRUE),
)), $group);
}
/**
* Check to see if a value is not NULL.
*
* @param $value
* The value on which the assertion is to be done.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertNotNull($value, $message = '', $group = 'Other') {
return $this
->assert(isset($value), $message ? $message : t('Value @value is not NULL.', array(
'@value' => var_export($value, TRUE),
)), $group);
}
/**
* Check to see if two values are equal.
*
* @param $first
* The first value to check.
* @param $second
* The second value to check.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertEqual($first, $second, $message = '', $group = 'Other') {
return $this
->assert($first == $second, $message ? $message : t('Value @first is equal to value @second.', array(
'@first' => var_export($first, TRUE),
'@second' => var_export($second, TRUE),
)), $group);
}
/**
* Check to see if two values are not equal.
*
* @param $first
* The first value to check.
* @param $second
* The second value to check.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertNotEqual($first, $second, $message = '', $group = 'Other') {
return $this
->assert($first != $second, $message ? $message : t('Value @first is not equal to value @second.', array(
'@first' => var_export($first, TRUE),
'@second' => var_export($second, TRUE),
)), $group);
}
/**
* Check to see if two values are identical.
*
* @param $first
* The first value to check.
* @param $second
* The second value to check.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertIdentical($first, $second, $message = '', $group = 'Other') {
return $this
->assert($first === $second, $message ? $message : t('Value @first is identical to value @second.', array(
'@first' => var_export($first, TRUE),
'@second' => var_export($second, TRUE),
)), $group);
}
/**
* Check to see if two values are not identical.
*
* @param $first
* The first value to check.
* @param $second
* The second value to check.
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE if the assertion succeeded, FALSE otherwise.
*/
protected function assertNotIdentical($first, $second, $message = '', $group = 'Other') {
return $this
->assert($first !== $second, $message ? $message : t('Value @first is not identical to value @second.', array(
'@first' => var_export($first, TRUE),
'@second' => var_export($second, TRUE),
)), $group);
}
/**
* Fire an assertion that is always positive.
*
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* TRUE.
*/
protected function pass($message = NULL, $group = 'Other') {
return $this
->assert(TRUE, $message, $group);
}
/**
* Fire an assertion that is always negative.
*
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @return
* FALSE.
*/
protected function fail($message = NULL, $group = 'Other') {
return $this
->assert(FALSE, $message, $group);
}
/**
* Fire an error assertion.
*
* @param $message
* The message to display along with the assertion.
* @param $group
* The type of assertion - examples are "Browser", "PHP".
* @param $caller
* The caller of the error.
* @return
* FALSE.
*/
protected function error($message = '', $group = 'Other', array $caller = NULL) {
if ($group == 'User notice') {
// Since 'User notice' is set by trigger_error() which is used for debug
// set the message to a status of 'debug'.
return $this
->assert('debug', $message, 'Debug', $caller);
}
return $this
->assert('exception', $message, $group, $caller);
}
/**
* Logs a verbose message in a text file.
*
* The link to the verbose message will be placed in the test results as a
* passing assertion with the text '[verbose message]'.
*
* @param $message
* The verbose message to be stored.
*
* @see simpletest_verbose()
*/
protected function verbose($message) {
if ($id = simpletest_verbose($message)) {
$class_safe = str_replace('\\', '_', get_class($this));
$url = $this->verboseDirectoryUrl . '/' . $class_safe . '-' . $id . '.html';
// Not using l() to avoid invoking the theme system, so that unit tests
// can use verbose() as well.
$link = '<a href="' . $url . '" target="_blank">' . t('Verbose message') . '</a>';
$this
->error($link, 'User notice');
}
}
/**
* Run all tests in this class.
*
* Regardless of whether $methods are passed or not, only method names
* starting with "test" are executed.
*
* @param $methods
* (optional) A list of method names in the test case class to run; e.g.,
* array('testFoo', 'testBar'). By default, all methods of the class are
* taken into account, but it can be useful to only run a few selected test
* methods during debugging.
*/
public function run(array $methods = array()) {
// Initialize verbose debugging.
$class = get_class($this);
simpletest_verbose(NULL, variable_get('file_public_path', conf_path() . '/files'), str_replace('\\', '_', $class));
// HTTP auth settings (<username>:<password>) for the simpletest browser
// when sending requests to the test site.
$this->httpauth_method = variable_get('simpletest_httpauth_method', CURLAUTH_BASIC);
$username = variable_get('simpletest_httpauth_username', NULL);
$password = variable_get('simpletest_httpauth_password', NULL);
if ($username && $password) {
$this->httpauth_credentials = $username . ':' . $password;
}
set_error_handler(array(
$this,
'errorHandler',
));
// Iterate through all the methods in this class, unless a specific list of
// methods to run was passed.
$class_methods = get_class_methods($class);
if ($methods) {
$class_methods = array_intersect($class_methods, $methods);
}
foreach ($class_methods as $method) {
// If the current method starts with "test", run it - it's a test.
if (strtolower(substr($method, 0, 4)) == 'test') {
// Insert a fail record. This will be deleted on completion to ensure
// that testing completed.
$method_info = new ReflectionMethod($class, $method);
$caller = array(
'file' => $method_info
->getFileName(),
'line' => $method_info
->getStartLine(),
'function' => $class . '->' . $method . '()',
);
$completion_check_id = DrupalTestCase::insertAssert($this->testId, $class, FALSE, t('The test did not complete due to a fatal error.'), 'Completion check', $caller);
$this
->setUp();
if ($this->setup) {
try {
$this
->{$method}();
// Finish up.
} catch (Exception $e) {
$this
->exceptionHandler($e);
}
$this
->tearDown();
}
else {
$this
->fail(t("The test cannot be executed because it has not been set up properly."));
}
// Remove the completion check record.
DrupalTestCase::deleteAssert($completion_check_id);
}
}
// Clear out the error messages and restore error handler.
drupal_get_messages();
restore_error_handler();
}
/**
* Handle errors during test runs.
*
* Because this is registered in set_error_handler(), it has to be public.
* @see set_error_handler
*/
public function errorHandler($severity, $message, $file = NULL, $line = NULL) {
if ($severity & error_reporting()) {
$error_map = array(
E_STRICT => 'Run-time notice',
E_WARNING => 'Warning',
E_NOTICE => 'Notice',
E_CORE_ERROR => 'Core error',
E_CORE_WARNING => 'Core warning',
E_USER_ERROR => 'User error',
E_USER_WARNING => 'User warning',
E_USER_NOTICE => 'User notice',
E_RECOVERABLE_ERROR => 'Recoverable error',
);
// PHP 5.3 adds new error logging constants. Add these conditionally for
// backwards compatibility with PHP 5.2.
if (defined('E_DEPRECATED')) {
$error_map += array(
E_DEPRECATED => 'Deprecated',
E_USER_DEPRECATED => 'User deprecated',
);
}
$backtrace = debug_backtrace();
$this
->error($message, $error_map[$severity], _drupal_get_last_caller($backtrace));
}
return TRUE;
}
/**
* Handle exceptions.
*
* @see set_exception_handler
*/
protected function exceptionHandler($exception) {
$backtrace = $exception
->getTrace();
// Push on top of the backtrace the call that generated the exception.
array_unshift($backtrace, array(
'line' => $exception
->getLine(),
'file' => $exception
->getFile(),
));
require_once DRUPAL_ROOT . '/includes/errors.inc';
// The exception message is run through check_plain() by _drupal_decode_exception().
$this
->error(t('%type: !message in %function (line %line of %file).', _drupal_decode_exception($exception)), 'Uncaught exception', _drupal_get_last_caller($backtrace));
}
/**
* Generates a random string of ASCII characters of codes 32 to 126.
*
* The generated string includes alpha-numeric characters and common
* miscellaneous characters. Use this method when testing general input
* where the content is not restricted.
*
* Do not use this method when special characters are not possible (e.g., in
* machine or file names that have already been validated); instead,
* use DrupalWebTestCase::randomName().
*
* @param $length
* Length of random string to generate.
*
* @return
* Randomly generated string.
*
* @see DrupalWebTestCase::randomName()
*/
public static function randomString($length = 8) {
$str = '';
for ($i = 0; $i < $length; $i++) {
$str .= chr(mt_rand(32, 126));
}
return $str;
}
/**
* Generates a random string containing letters and numbers.
*
* The string will always start with a letter. The letters may be upper or
* lower case. This method is better for restricted inputs that do not
* accept certain characters. For example, when testing input fields that
* require machine readable values (i.e. without spaces and non-standard
* characters) this method is best.
*
* Do not use this method when testing unvalidated user input. Instead, use
* DrupalWebTestCase::randomString().
*
* @param $length
* Length of random string to generate.
*
* @return
* Randomly generated string.
*
* @see DrupalWebTestCase::randomString()
*/
public static function randomName($length = 8) {
$values = array_merge(range(65, 90), range(97, 122), range(48, 57));
$max = count($values) - 1;
$str = chr(mt_rand(97, 122));
for ($i = 1; $i < $length; $i++) {
$str .= chr($values[mt_rand(0, $max)]);
}
return $str;
}
/**
* Converts a list of possible parameters into a stack of permutations.
*
* Takes a list of parameters containing possible values, and converts all of
* them into a list of items containing every possible permutation.
*
* Example:
* @code
* $parameters = array(
* 'one' => array(0, 1),
* 'two' => array(2, 3),
* );
* $permutations = DrupalTestCase::generatePermutations($parameters)
* // Result:
* $permutations == array(
* array('one' => 0, 'two' => 2),
* array('one' => 1, 'two' => 2),
* array('one' => 0, 'two' => 3),
* array('one' => 1, 'two' => 3),
* )
* @endcode
*
* @param $parameters
* An associative array of parameters, keyed by parameter name, and whose
* values are arrays of parameter values.
*
* @return
* A list of permutations, which is an array of arrays. Each inner array
* contains the full list of parameters that have been passed, but with a
* single value only.
*/
public static function generatePermutations($parameters) {
$all_permutations = array(
array(),
);
foreach ($parameters as $parameter => $values) {
$new_permutations = array();
// Iterate over all values of the parameter.
foreach ($values as $value) {
// Iterate over all existing permutations.
foreach ($all_permutations as $permutation) {
// Add the new parameter value to existing permutations.
$new_permutations[] = $permutation + array(
$parameter => $value,
);
}
}
// Replace the old permutations with the new permutations.
$all_permutations = $new_permutations;
}
return $all_permutations;
}
}Members
Name |
Modifiers | Type | Description | Overrides |
|---|---|---|---|---|
|
DrupalTestCase:: |
protected | property | Assertions thrown in that test case. | |
|
DrupalTestCase:: |
protected | property | The database prefix of this test run. | |
|
DrupalTestCase:: |
protected | property | The original file directory, before it was changed for testing purposes. | |
|
DrupalTestCase:: |
public | property | Current results of this test case. | |
|
DrupalTestCase:: |
protected | property | Flag to indicate whether the test has been set up. | |
|
DrupalTestCase:: |
protected | property | ||
|
DrupalTestCase:: |
protected | property | ||
|
DrupalTestCase:: |
protected | property | This class is skipped when looking for the source of an assertion. | |
|
DrupalTestCase:: |
protected | property | The test run ID. | |
|
DrupalTestCase:: |
protected | property | Time limit for the test. | |
|
DrupalTestCase:: |
public | property | Whether to cache the installation part of the setUp() method. | |
|
DrupalTestCase:: |
public | property | Whether to cache the modules installation part of the setUp() method. | |
|
DrupalTestCase:: |
protected | property | URL to the verbose output file directory. | |
|
DrupalTestCase:: |
protected | function | Internal helper: stores the assert. | |
|
DrupalTestCase:: |
protected | function | Check to see if two values are equal. | |
|
DrupalTestCase:: |
protected | function | Check to see if a value is false (an empty string, 0, NULL, or FALSE). | |
|
DrupalTestCase:: |
protected | function | Check to see if two values are identical. | |
|
DrupalTestCase:: |
protected | function | Check to see if two values are not equal. | |
|
DrupalTestCase:: |
protected | function | Check to see if two values are not identical. | |
|
DrupalTestCase:: |
protected | function | Check to see if a value is not NULL. | |
|
DrupalTestCase:: |
protected | function | Check to see if a value is NULL. | |
|
DrupalTestCase:: |
protected | function | Check to see if a value is not false (not an empty string, 0, NULL, or FALSE). | |
|
DrupalTestCase:: |
public static | function | Delete an assertion record by message ID. | |
|
DrupalTestCase:: |
protected | function | Fire an error assertion. | 1 |
|
DrupalTestCase:: |
public | function | Handle errors during test runs. | 1 |
|
DrupalTestCase:: |
protected | function | Handle exceptions. | |
|
DrupalTestCase:: |
protected | function | Fire an assertion that is always negative. | |
|
DrupalTestCase:: |
public static | function | Converts a list of possible parameters into a stack of permutations. | |
|
DrupalTestCase:: |
protected | function | Cycles through backtrace until the first non-assertion method is found. | |
|
DrupalTestCase:: |
public static | function | Returns the database connection to the site running Simpletest. | |
|
DrupalTestCase:: |
public static | function | Store an assertion from outside the testing context. | |
|
DrupalTestCase:: |
protected | function | Fire an assertion that is always positive. | |
|
DrupalTestCase:: |
public static | function | Generates a random string containing letters and numbers. | |
|
DrupalTestCase:: |
public static | function | Generates a random string of ASCII characters of codes 32 to 126. | |
|
DrupalTestCase:: |
public | function | Run all tests in this class. | |
|
DrupalTestCase:: |
protected | function | Logs a verbose message in a text file. | |
|
DrupalTestCase:: |
public | function | Constructor for DrupalTestCase. | 2 |