Assert that module_list() return the expected values.
$expected_values: The expected values, sorted by weight and module name.
protected function assertModuleList(array $expected_values, $condition) {
$expected_values = array_combine($expected_values, $expected_values);
$this
->assertEqual($expected_values, module_list(), format_string('@condition: module_list() returns correct results', array(
'@condition' => $condition,
)));
}