function testIsNull()
{
$null = null;
// valid true values
$this->assertTrue(ObjectUtils::isNull(null));
$this->assertTrue(ObjectUtils::isNull(NULL));
$this->assertTrue(ObjectUtils::isNull($this->notInitialized));
$this->assertTrue(ObjectUtils::isNull($null));
// valid false values
$this->assertFalse(ObjectUtils::isNull(false));
$this->assertFalse(ObjectUtils::isNull(0));
}
/**
* Get message associated with key. Allow default value if not found and
* allow preservation of whitespace.
*
* @param string $key Key to message you're looking for.
* @param string $default Default value if key was not found.
* @param boolean $preserveExtraSpace Flag indicating whether ot preserve
* whitespace or trim value.
*
* @return string Message value or default value.
*
* @throws Exception if no default and key not found.
*
* @todo Determine a way for the default to be explicitly null.
* @todo Consider stripping first space even if flag for preserving space
* is set to true as standard practice in properties files is for there to
* be at least one space after the equals.
*/
public function get($key, $default = NULL, $preserveExtraSpace = FALSE)
{
// if found, return it
if (array_key_exists($key, $this->properties)) {
$value = $this->properties[$key];
if ($preserveExtraSpace) {
// TODO: consider stripping first space if present for consistency
return $value;
}
return trim($value);
// not found, throw exception
} else {
if (ObjectUtils::isNull($default)) {
throw new Exception("No property was found with the key \"" . $key . "\" in the file \"" . $this->file . "\".");
} else {
return $default;
}
}
}
