In substrate 2.0.1, its has following code:
mod simple_event {
pub use crate::Event;
}
impl_outer_event! {
pub enum TestEvent for TestRuntime {
simple_event,
frame_system<T>,
}
}
https://github.com/substrate-developer-hub/recipes/blob/master/pallets/simple-event/src/tests.rs
But adding impl_outer_event is giving error in substrate 3.0.0:
/ frame_support::construct_runtime!(
14 | | pub enum Test where
15 | | Block = Block,
16 | | NodeBlock = Block,
... |
21 | | }
22 | | );
| |__^ duplicate definitions for `outer_event_metadata`
...
58 | / impl_outer_event! {
59 | | pub enum TestEvent for Test {
60 | | simple_event<T>,
61 | | frame_system<T>,
62 | | }
63 | | }
| |_- other definition for `outer_event_metadata`
How to solve it?
In Substrate 3.0 you use the same construct_runtime! macro in tests that you use in the full runtime. You can see an example of how to test events the new way in the Substrate repository itself.