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Successful note_imminent_preimage is free (#6793)

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* Successful `note_imminent_preimage` is free

* update docs

* Add test for duplicate preimage
This commit is contained in:
Shawn Tabrizi
2020-08-05 16:22:21 +02:00
committed by GitHub
parent 8a37f60844
commit 97ac45c2f2
2 changed files with 45 additions and 6 deletions
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substrate/frame/democracy/src/tests/preimage.rs
+31
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@@ -164,3 +164,34 @@ fn reaping_imminent_preimage_should_fail() {
assert_noop!(Democracy::reap_preimage(Origin::signed(6), h, u32::max_value()), Error::<Test>::Imminent);
});
}
#[test]
fn note_imminent_preimage_can_only_be_successful_once() {
new_test_ext().execute_with(|| {
PREIMAGE_BYTE_DEPOSIT.with(|v| *v.borrow_mut() = 1);
let r = Democracy::inject_referendum(
2,
set_balance_proposal_hash(2),
VoteThreshold::SuperMajorityApprove,
1
);
assert_ok!(Democracy::vote(Origin::signed(1), r, aye(1)));
next_block();
// First time works
assert_ok!(Democracy::note_imminent_preimage(Origin::signed(6), set_balance_proposal(2)));
// Second time fails
assert_noop!(
Democracy::note_imminent_preimage(Origin::signed(6), set_balance_proposal(2)),
Error::<Test>::DuplicatePreimage
);
// Fails from any user
assert_noop!(
Democracy::note_imminent_preimage(Origin::signed(5), set_balance_proposal(2)),
Error::<Test>::DuplicatePreimage
);
});
}