CODEWITHSUNDEEP
rustsubstratepolkadot
Neo
Neo

Reputation: 857

how to access event parameters in unit test frame 0.9.12

Hi all I am trying to access the values passed in the event .

I have extract the event with this - not this is substrate 0.9.12 so I have not been able to use some of the examples I find online that use substrate 2.0.0

let e = &frame_system::Pallet::<Test>::events()[0];
 let EventRecord { event, .. } = e;

And this is the structure of event

Event::MosaicVault(
    Event::VaultCreated {
        sender: 1,
        asset_id: A,
        vault_id: 1,
        reserved: Perquintill(
            1000000000000000000,
        ),
    },
)

How do I access vault_id value , a sample would be helpful , thanks

Upvotes: 0

Views: 81

Answers (1)

gui
gui

Reputation: 516

This is called destructuring of enum (if you want to search online for more example).

Basically you can use some match or if let to get the inner fields of some variants of enums.

something a bit like this:

if let Event::MosaicVault(Event::VaultCreated { vault_id, .. }) = event {
// here you have access to vault_id
}

Upvotes: 1

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