On about:glean we don't say when you should express the instrumented behaviour
Categories
(Toolkit :: Telemetry, task, P3)
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(Reporter: chutten, Unassigned)
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(Blocks 1 open bug)
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about:glean aims to be a complete algorithm for manually testing instrumentation... but it doesn't say when to express the instrumented behaviour.
For example, if closing a tab records an event metric, then tagging and sending the "events" ping won't contain the instrumentation under test unless you've first closed a tab. So we might want a `Step 0. Express the instrumented behaviour (e.g. if your instrumentation only records when you add a bookmark: Add a bookmark first.)
Now we should be wary. If expressing the instrumentation sends a ping, then this will not be good advice. For example, if closing a tab instead sends a "tab-closed" ping, then the steps would need to be different. You want to tag a ping (and set log pings) first and then express the instrumented behaviour.
(Also, while we're here, we should probably add a Services.fog.testFlushAllChildren(); to the "Apply Settings and Submit Ping" button to ensure no one has to think about how IPC throws even more wrenches in the works)
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