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Testing Oban Workers
Background processing refers to the execution of tasks as separate, detached processes. Oban is a robust background job framework that is widely used ...
Deankinyua
2 days ago
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Reproducing failed CI tests locally with seeds
When tests fail in CI, you can use the test seed to reproduce the exact same test run locally. This is especially useful for debugging flaky tests or ...
almirsarajcic
2 days ago
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Creating and hosting sitemaps in Elixir/Phoenix
Recently, we implemented sitemap generation for ElixirDrops, so I thought I'd share our approach.
Since we don't store sitemaps in git and hosting pr...
almirsarajcic
9 days ago
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Ecto fragments for complex queries
Sometimes when writing Ecto queries, you might discover that the conventional approach doesn't quite cut it. This is where fragments come in, which ar...
Deankinyua
10 days ago
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Capturing Logs in Tests
Sometimes when you writing functions that may produce errors, you might want to log the error in the terminal :...
Deankinyua
15 days ago
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Temporarily changing app config in tests
When testing functionality that depends on application configuration, you can temporarily set specific config values and ensure they're restored after...
almirsarajcic
16 days ago
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Multi-process collaboration in Mox
Mox enforces process-based verification, meaning only the process that defines expectations is allowed to call the mock by default. This can prove pro...
Deankinyua
18 days ago
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Gracefully handle 404s and other errors in Phoenix using Plug.ErrorHandler
Instead of letting your Phoenix app crash with ugly errors, add this clean error handler:...
amos-kibet
22 days ago
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Cleaning up after tests (on_exit)
When your tests create files, database records, or other side effects, you need to clean them up regardless of whether the test passes or fails.
Data...
almirsarajcic
23 days ago
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Auto-disappearing flash messages in Phoenix LiveView
Use this LiveView hook to make flash messages automatically disappear after 5 seconds in your Phoenix app.
Create the JavaScript hook file:...
almirsarajcic
1 month ago
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Enhanced missing gettext translations check in CI
Earlier I wrote about a check for strings that haven't been extracted yet to .pot and .po gettext files (link).
Still, extracting them is not enough....
almirsarajcic
1 month ago
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Using Playwright MCP in Cursor
Building Phoenix LiveViews and want to see how they actually work in a real browser? Playwright MCP in Cursor lets your AI agent check your features a...
almirsarajcic
1 month ago
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Improving code coverage with AI agents
Did you know AI agents can even help you with code coverage? Maybe you wanted to figure out all the scenarios you haven't covered in your tests. That'...
almirsarajcic
1 month ago
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optimum_gen_infra v0.2.0
optimum_gen_infra version 0.2.0 was released....
almirsarajcic
1 month ago
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Optimum Credo checks
During code reviews, we've noticed some patterns emerge. To avoid wasting time and attention on these pesky details, we started using Credo in all our...
almirsarajcic
1 month ago
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