47 lines
2.0 KiB
Markdown
47 lines
2.0 KiB
Markdown
# Discourse Developer Testing Guide
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Some notes about testing Discourse:
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## FakeWeb
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We use the [FakeWeb](https://github.com/chrisk/fakeweb) gem to fake external web
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requests.
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For example, check out the specs on `specs/components/oneboxer`.
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This has several advantages to making real requests:
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* We freeze the expected response from the remote server.
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* We don't need a network connection to run the specs.
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* It's faster.
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So, if you need to define a spec that makes a web request, you'll have to record
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the real response to a fixture file, and tell FakeWeb to respond with it for the
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URI of your request.
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Check out `spec/components/oneboxer/amazon_onebox_spec.rb` for an example on
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this.
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### Recording responses
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To record the actual response from the remote server, you can use curl and save the response to a file. We use the `-i` option to include headers in the output
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curl -i http://en.m.wikipedia.org/wiki/Ruby > wikipedia.response
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If you need to specify the User-Agent to send to the server, you can use `-A`:
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curl -i -A 'Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3' http://en.m.wikipedia.org/wiki/Ruby > wikipedia.response
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If the remote server is responding with a redirect, you'll need to fake both the
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original request and the one for the destination. Check out the
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`wikipedia.response` and `wikipedia_redirected.response` files in
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`spec/fixtures/oneboxer` for an example. You can also consider working directly
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with the final URL for simplicity.
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## MailCatcher
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Discourse depends heavily on (sending) email for notifications. We use [MailCatcher](http://mailcatcher.me/)
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to test emails. It's super convenient!
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> MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far.
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