{ "uuid": [ { "value": "15237599-15e7-496b-a7e0-c02fddae26f8" } ], "langcode": [ { "value": "en" } ], "type": [ { "target_id": "daily_email", "target_type": "node_type", "target_uuid": "8bde1f2f-eef9-4f2d-ae9c-96921f8193d7" } ], "revision_timestamp": [ { "value": "2025-05-11T09:00:34+00:00" } ], "revision_uid": [ { "target_type": "user", "target_uuid": "b8966985-d4b2-42a7-a319-2e94ccfbb849" } ], "revision_log": [], "status": [ { "value": true } ], "uid": [ { "target_type": "user", "target_uuid": "b8966985-d4b2-42a7-a319-2e94ccfbb849" } ], "title": [ { "value": "Asserting all the things\n" } ], "created": [ { "value": "2023-08-19T00:00:00+00:00" } ], "changed": [ { "value": "2025-05-11T09:00:34+00:00" } ], "promote": [ { "value": false } ], "sticky": [ { "value": false } ], "default_langcode": [ { "value": true } ], "revision_translation_affected": [ { "value": true } ], "path": [ { "alias": "\/daily\/2023\/08\/19\/asserting-all-the-things", "langcode": "en" } ], "body": [ { "value": "\n

As well as assertions within tests, you can also check within implementation code that things are in an expected state or contain a certain value.<\/p>\n\n

In PHP, this is done by throwing an Exception if a condition is met.<\/p>\n\n

For example:<\/p>\n\n

if (!is_array(false)) {\n  throw new \\Exception('Not an array');\n}\n<\/code><\/pre>\n\n

There's also the assert<\/code> construct which, since PHP 8.0, throws an Exception by default:<\/p>\n\n

assert(is_array(false));\n<\/code><\/pre>\n\n

You can also use an assertion library, such as webmozart\/assert<\/code> or beberlei\/assert<\/code> which provide assertions and guard methods:<\/p>\n\n

use Webmozart\\Assert\\Assert;\n\nAssert::isArray(false);\n<\/code><\/pre>\n\n

Similarly, if the condition fails, it throws an Exception that can be caught elsewhere.<\/p>\n\n

As well as basic assertions such as the item is the expected type or don't match the condition, there are more complex assertions, such as all items within an array are a certain type or that an integer is positive.<\/p>\n\n

Here's the thing<\/h2>\n\n

I use guard conditions a lot within my code. If something is not as I'd expect, I like for an error to be thrown. This makes is easy to test and to debug any failures compared to failing silently.<\/p>\n\n ", "format": "full_html", "processed": "\n

As well as assertions within tests, you can also check within implementation code that things are in an expected state or contain a certain value.<\/p>\n\n

In PHP, this is done by throwing an Exception if a condition is met.<\/p>\n\n

For example:<\/p>\n\n

if (!is_array(false)) {\n  throw new \\Exception('Not an array');\n}\n<\/code><\/pre>\n\n

There's also the assert<\/code> construct which, since PHP 8.0, throws an Exception by default:<\/p>\n\n

assert(is_array(false));\n<\/code><\/pre>\n\n

You can also use an assertion library, such as webmozart\/assert<\/code> or beberlei\/assert<\/code> which provide assertions and guard methods:<\/p>\n\n

use Webmozart\\Assert\\Assert;\n\nAssert::isArray(false);\n<\/code><\/pre>\n\n

Similarly, if the condition fails, it throws an Exception that can be caught elsewhere.<\/p>\n\n

As well as basic assertions such as the item is the expected type or don't match the condition, there are more complex assertions, such as all items within an array are a certain type or that an integer is positive.<\/p>\n\n

Here's the thing<\/h2>\n\n

I use guard conditions a lot within my code. If something is not as I'd expect, I like for an error to be thrown. This makes is easy to test and to debug any failures compared to failing silently.<\/p>\n\n ", "summary": null } ] }