oliverdavies.uk/content/node.45636e82-61b1-4298-a28c-34f139b9a559.json

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    "title": [
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            "value": "Writing your own test traits"
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            "value": "2025-05-13T01:08:34+00:00"
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            "value": "<p>In Drupal, there are different types of automated tests we can write.<\/p><p>The most common I use are Functional, Kernel and Unit - which I explain about in <a href=\"\/presentations\/tdd-test-driven-drupal\">my Test Driven Drupal talk<\/a>.<\/p><p>If I'm writing multiple of the same type, I'll often create my own base test class that extends <code>BrowserTestCase<\/code>, <code>KernelTestCase<\/code> or whatever base class I need rather than extending it directly.<\/p><p>This allows me to write custom helper functions and share behaviour between the tests.<\/p><p>An example is the <code>createDailyEmailNode<\/code> method I wrote to simplify creating daily emails in my tests <a href=\"\/daily\/2025\/05\/11\/email-archive-tome\">since migrating to Tome<\/a>.<\/p><p>But, what if you want to do this for different types of test?<\/p><p>Enter, traits.<\/p><p>Traits are a way of reusing code without inheritance - meaning without extending a base class.<\/p><p>I can use a trait in my functional and kernel tests whilst both extend their required base classes.<\/p><p>I did this with my <code>createDailyEmailNode<\/code> method so I could re-use it in both types of tests when counting the number of sent daily emails.<\/p><p>To see this, you can <a href=\"https:\/\/code.oliverdavies.uk\/opdavies\/oliverdavies.uk\/src\/commit\/88ec3d9e5136c6cbefebba063863ef1a058f4b09\/modules\/opd_daily_emails\/tests\/src\">look at the code<\/a> on my Forgejo instance.<\/p><p>P.S. If you want to learn how to write automated tests in Drupal, subscribe to <a href=\"http:\/\/localhost:8888\/atdc\">my free 10-day email course<\/a>.<\/p>",
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            "processed": "<p>In Drupal, there are different types of automated tests we can write.<\/p><p>The most common I use are Functional, Kernel and Unit - which I explain about in <a href=\"http:\/\/default\/presentations\/tdd-test-driven-drupal\">my Test Driven Drupal talk<\/a>.<\/p><p>If I'm writing multiple of the same type, I'll often create my own base test class that extends <code>BrowserTestCase<\/code>, <code>KernelTestCase<\/code> or whatever base class I need rather than extending it directly.<\/p><p>This allows me to write custom helper functions and share behaviour between the tests.<\/p><p>An example is the <code>createDailyEmailNode<\/code> method I wrote to simplify creating daily emails in my tests <a href=\"http:\/\/default\/daily\/2025\/05\/11\/email-archive-tome\">since migrating to Tome<\/a>.<\/p><p>But, what if you want to do this for different types of test?<\/p><p>Enter, traits.<\/p><p>Traits are a way of reusing code without inheritance - meaning without extending a base class.<\/p><p>I can use a trait in my functional and kernel tests whilst both extend their required base classes.<\/p><p>I did this with my <code>createDailyEmailNode<\/code> method so I could re-use it in both types of tests when counting the number of sent daily emails.<\/p><p>To see this, you can <a href=\"https:\/\/code.oliverdavies.uk\/opdavies\/oliverdavies.uk\/src\/commit\/88ec3d9e5136c6cbefebba063863ef1a058f4b09\/modules\/opd_daily_emails\/tests\/src\">look at the code<\/a> on my Forgejo instance.<\/p><p>P.S. If you want to learn how to write automated tests in Drupal, subscribe to <a href=\"http:\/\/localhost:8888\/atdc\">my free 10-day email course<\/a>.<\/p>",
            "summary": ""
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