public function testToStringNoAlias()
{
$display = new Display();
$expected = 'product';
$display->setField('product');
$this->assertSame($expected, $display->toString());
}
public function testCheckPass()
{
$supplied = array('product-id');
$display = new Display();
$display->setField('product')->setAlias('id');
$expected = array($display);
$requirements = array('fields' => array('product'));
$actual = DisplayType::check($supplied, $requirements);
// Compare actual and existing params
$this->assertInternalType('array', $actual);
$this->assertInstanceOf(get_class($display), $actual[0]);
$this->assertEquals($expected, $actual);
}
/**
* Checks if the value is of a given type and
* that the value passes requirements specified.
*
* @param mixed $value Value to be checked
* @param array $requirements Additional constraints
* @return array Cleared value
* @throws InvalidDataTypeException
*/
public static function check($value, array $requirements = array())
{
if (!isset($requirements['fields'])) {
$error = 'list of fields to display constraint has not been specified for display';
throw new InvalidDataTypeException($error);
}
if (!is_array($value)) {
$error = 'value must be a list of fields';
throw new InvalidDataTypeException($error);
}
$displays = array();
// Iterate through the list of fields and check each display
foreach ($value as $i => $field) {
// Detect display settings
if (!is_string($field)) {
$error = 'value for index ' . $i . ' must be a string in format of' . ' {field}-{alias}';
throw new InvalidDataValueException($error);
}
$parts = explode('-', $field, 2);
if (empty($parts[0])) {
$error = 'value for index ' . $i . ' must contain valid field names';
throw new InvalidDataValueException($error);
}
if (!in_array($parts[0], $requirements['fields'])) {
$error = 'value for index ' . $i . ' must be one of (' . implode(', ', $requirements['fields']) . ')';
throw new InvalidDataValueException($error);
}
$display = new Display();
$display->setField($parts[0]);
if (!empty($parts[1])) {
$display->setAlias($parts[1]);
}
$displays[] = $display;
}
return $displays;
}