applause based on the external expousre

Signed-off-by: Uncle Stinky <uncle.stinky@ghostchain.io>

pallets/slow-clap/src/mock.rs

@@ -9,7 +9,7 @@ use pallet_session::historical as pallet_session_historical;
 use sp_runtime::{
     curve::PiecewiseLinear,
     testing::{TestXt, UintAuthorityId},
-    traits::ConvertInto,
+    traits::{AtLeast32BitUnsigned, ConvertInto},
     Permill,
 };
 use sp_staking::{
@@ -20,7 +20,7 @@ use sp_staking::{
 use sp_runtime::BuildStorage;
 
 use crate as slow_clap;
-use crate::Config;
+use crate::{ApplauseListener, Config, EraIndex};
 
 type Block = frame_system::mocking::MockBlock<Runtime>;
 
@@ -174,6 +174,32 @@ impl pallet_balances::Config for Runtime {
     type WeightInfo = ();
 }
 
+type Balance = u64;
+
+pub struct TestSomeCoolTrait;
+impl ApplauseListener<Balance> for TestSomeCoolTrait
+where
+    Balance: AtLeast32BitUnsigned + From<u64>,
+{
+    fn get_current_era() -> EraIndex {
+        1
+    }
+
+    fn get_threshold_amount(_era: EraIndex) -> Balance {
+        666_666_667u64.into()
+    }
+
+    fn get_validator_total_exposure(_era: EraIndex, index: usize) -> Balance {
+        match index {
+            0 => 500_000_000u64,
+            1 => 300_000_000u64,
+            2 => 200_000_000u64,
+            _ => 0,
+        }
+        .into()
+    }
+}
+
 impl Config for Runtime {
     type RuntimeEvent = RuntimeEvent;
     type AuthorityId = UintAuthorityId;
@@ -184,6 +210,7 @@ impl Config for Runtime {
     type BlockNumberProvider = System;
     type ReportUnresponsiveness = OffenceHandler;
     type DisabledValidators = Session;
+    type ApplauseListener = TestSomeCoolTrait;
 
     type MaxAuthorities = ConstU32<5>;
     type ApplauseThreshold = ConstU32<50>;