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Allow ExistentialDeposit = 0 (#6185)

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* Allow ExistentialDeposit = 0

* there are better ways to check is an account exists

* fix StorageMapShim

* test account events and fix some bugs
This commit is contained in:
Xiliang Chen
2020-06-03 03:22:21 +12:00
committed by GitHub
parent 7b9add7a71
commit 6547d7a09a
6 changed files with 186 additions and 42 deletions
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substrate/frame/balances/src/tests.rs
+70
View File
@@ -61,6 +61,14 @@ macro_rules! decl_tests {
DispatchInfo { weight: w, ..Default::default() }
}
fn events() -> Vec<Event> {
let evt = System::events().into_iter().map(|evt| evt.event).collect::<Vec<_>>();
System::reset_events();
evt
}
#[test]
fn basic_locking_should_work() {
<$ext_builder>::default().existential_deposit(1).monied(true).build().execute_with(|| {
@@ -674,5 +682,67 @@ macro_rules! decl_tests {
assert_eq!(Balances::reserved_balance(1), 0);
});
}
#[test]
fn emit_events_with_existential_deposit() {
<$ext_builder>::default()
.existential_deposit(100)
.build()
.execute_with(|| {
assert_ok!(Balances::set_balance(RawOrigin::Root.into(), 1, 100, 0));
assert_eq!(
events(),
[
Event::system(system::RawEvent::NewAccount(1)),
Event::balances(RawEvent::Endowed(1, 100)),
Event::balances(RawEvent::BalanceSet(1, 100, 0)),
]
);
let _ = Balances::slash(&1, 1);
assert_eq!(
events(),
[
Event::balances(RawEvent::DustLost(1, 99)),
Event::system(system::RawEvent::KilledAccount(1))
]
);
});
}
#[test]
fn emit_events_with_no_existential_deposit_suicide() {
<$ext_builder>::default()
.existential_deposit(0)
.build()
.execute_with(|| {
assert_ok!(Balances::set_balance(RawOrigin::Root.into(), 1, 100, 0));
assert_eq!(
events(),
[
Event::system(system::RawEvent::NewAccount(1)),
Event::balances(RawEvent::Endowed(1, 100)),
Event::balances(RawEvent::BalanceSet(1, 100, 0)),
]
);
let _ = Balances::slash(&1, 100);
// no events
assert_eq!(events(), []);
assert_ok!(System::suicide(Origin::signed(1)));
assert_eq!(
events(),
[
Event::system(system::RawEvent::KilledAccount(1))
]
);
});
}
}
}