I am to write a unit test for a simple extension using hooks with postprocess and formbuild. How can I do it? Please provide some example.

  • This documentation does not explain how to use hooks only showing this: public function hook_civicrm_post($op, $objectName, $objectId, &$objectRef) { // listen to hook_civicrm_post } Jul 20, 2018 at 19:04

1 Answer 1


An example is in tests/phpunit/CRM/Contribute/Form/Task/PDFLetterCommonTest.php, testing that hook_civicrm_tokenValues works correctly on PDF letters.

You write a function using the hook, but you can name it whatever you want. Then you call $this->hookClass->setHook, specifying the function name.

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