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40 results

integration_tests.rs

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  • integration_tests.rs 45.30 KiB
    // Copyright 2021 Axiom-Team
    //
    // This file is part of Duniter-v2S.
    //
    // Duniter-v2S is free software: you can redistribute it and/or modify
    // it under the terms of the GNU Affero General Public License as published by
    // the Free Software Foundation, version 3 of the License.
    //
    // Duniter-v2S is distributed in the hope that it will be useful,
    // but WITHOUT ANY WARRANTY; without even the implied warranty of
    // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    // GNU Affero General Public License for more details.
    //
    // You should have received a copy of the GNU Affero General Public License
    // along with Duniter-v2S. If not, see <https://www.gnu.org/licenses/>.
    
    mod common;
    
    use common::*;
    use frame_support::instances::Instance1;
    use frame_support::traits::StoredMap;
    use frame_support::traits::{Get, PalletInfo, StorageInfo, StorageInfoTrait};
    use frame_support::{assert_noop, assert_ok};
    use frame_support::{StorageHasher, Twox128};
    use gdev_runtime::*;
    use pallet_duniter_wot::IdtyRemovalWotReason;
    use sp_core::Encode;
    use sp_keyring::AccountKeyring;
    use sp_runtime::MultiAddress;
    
    #[test]
    fn verify_treasury_account() {
        // println!("{}", Treasury::account_id());
    }
    
    #[test]
    fn verify_pallet_prefixes() {
        let prefix = |pallet_name, storage_name| {
            let mut res = [0u8; 32];
            res[0..16].copy_from_slice(&Twox128::hash(pallet_name));
            res[16..32].copy_from_slice(&Twox128::hash(storage_name));
            res.to_vec()
        };
        assert_eq!(
            <Timestamp as StorageInfoTrait>::storage_info(),
            vec![
                StorageInfo {
                    pallet_name: b"Timestamp".to_vec(),
                    storage_name: b"Now".to_vec(),
                    prefix: prefix(b"Timestamp", b"Now"),
                    max_values: Some(1),
                    max_size: Some(8),
                },
                StorageInfo {
                    pallet_name: b"Timestamp".to_vec(),
                    storage_name: b"DidUpdate".to_vec(),
                    prefix: prefix(b"Timestamp", b"DidUpdate"),
                    max_values: Some(1),
                    max_size: Some(1),
                }
            ]
        );
    }
    
    #[test]
    fn verify_pallet_indices() {
        fn is_pallet_index<P: 'static>(index: usize) {
            assert_eq!(
                <Runtime as frame_system::Config>::PalletInfo::index::<P>(),
                Some(index)
            );
        }
        is_pallet_index::<System>(0);
    }
    
    #[test]
    fn verify_proxy_type_indices() {
        assert_eq!(ProxyType::AlmostAny as u8, 0);
    }
    
    #[test]
    fn test_genesis_build() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            run_to_block(2);
        });
    }
    
    /// test initial state
    ///
    /// in order to make sure that it does not change accidentally
    #[test]
    fn test_initial_state() {
        ExtBuilder::new(1, 2, 3)
            .with_initial_balances(vec![
                (AccountKeyring::Alice.to_account_id(), 1_000),
                (AccountKeyring::Bob.to_account_id(), 200),
                (AccountKeyring::Charlie.to_account_id(), 100), // below ED allowed for identities
                (AccountKeyring::Dave.to_account_id(), 900),
            ])
            .build()
            .execute_with(|| {
                run_to_block(1);
    
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                    1_000
                );
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Bob.to_account_id()),
                    200
                );
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Charlie.to_account_id()),
                    100
                );
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Dave.to_account_id()),
                    900
                );
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Eve.to_account_id()),
                    0
                );
                // total issuance and monetary mass should be coherent
                assert_eq!(Balances::total_issuance(), 2_200);
                assert_eq!(
                    pallet_universal_dividend::MonetaryMass::<Runtime>::get(),
                    2_200
                );
            });
    }
    
    /// test total issuance against monetary mass
    /// the monetary mass represents the claimable monetary mass
    /// the total issuance represents the actually claimed currency
    #[test]
    fn test_total_issuance_vs_monetary_mass() {
        ExtBuilder::new(1, 2, 3)
            .with_initial_balances(vec![
                (AccountKeyring::Alice.to_account_id(), 2000),
                (AccountKeyring::Bob.to_account_id(), 1000),
                (AccountKeyring::Charlie.to_account_id(), 0),
            ])
            .build()
            .execute_with(|| {
                let ud_creation_period =
                    <Runtime as pallet_universal_dividend::Config>::UdCreationPeriod::get();
                assert_eq!(ud_creation_period, 60_000); // this is 10 blocks × 6 seconds in milliseconds
    
                run_to_block(1);
                // total issuance and monetary mass should be coherent
                assert_eq!(Balances::total_issuance(), 3000);
                assert_eq!(
                    pallet_universal_dividend::MonetaryMass::<Runtime>::get(),
                    3000
                );
                // first UD creation
                run_to_block(11);
                assert_eq!(Balances::total_issuance(), 3000);
                assert_eq!(
                    pallet_universal_dividend::MonetaryMass::<Runtime>::get(),
                    6000
                );
                // Alice claims her UD
                assert_ok!(UniversalDividend::claim_uds(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into()
                ));
                assert_eq!(Balances::total_issuance(), 4000);
                assert_eq!(
                    pallet_universal_dividend::MonetaryMass::<Runtime>::get(),
                    6000
                );
                // second UD creation
                run_to_block(21);
                // Bob claims his 2 UDs
                assert_ok!(UniversalDividend::claim_uds(
                    frame_system::RawOrigin::Signed(AccountKeyring::Bob.to_account_id()).into()
                ));
                assert_eq!(Balances::total_issuance(), 6000);
                assert_eq!(
                    pallet_universal_dividend::MonetaryMass::<Runtime>::get(),
                    9000
                );
            });
    }
    
    /// test identity go below ED
    #[test]
    fn test_identity_below_ed() {
        ExtBuilder::new(1, 1, 1)
            .with_initial_balances(vec![(AccountKeyring::Alice.to_account_id(), 900)])
            .build()
            .execute_with(|| {
                run_to_block(1);
                // new behavior : nobody is able to go below ED without killing the account
                // a transfer below ED will lead to frozen token error
                assert_noop!(
                    Balances::transfer(
                        frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                        MultiAddress::Id(AccountKeyring::Bob.to_account_id()),
                        850
                    ),
                    sp_runtime::TokenError::Frozen
                );
                // // Old behavior below
                // // Should be able to go below existential deposit, loose dust, and still not die
                // assert_ok!(Balances::transfer(
                //     frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                //     MultiAddress::Id(AccountKeyring::Bob.to_account_id()),
                //     800
                // ));
                // assert_eq!(
                //     Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                //     0
                // );
                // assert_eq!(
                //     Balances::free_balance(AccountKeyring::Bob.to_account_id()),
                //     800
                // );
                // // since alice is identity, her account should not be killed even she lost currency below ED
                // System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Transfer {
                //     from: AccountKeyring::Alice.to_account_id(),
                //     to: AccountKeyring::Bob.to_account_id(),
                //     amount: 800,
                // }));
                // System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::DustLost {
                //     account: AccountKeyring::Alice.to_account_id(),
                //     amount: 100,
                // }));
                // System::assert_has_event(RuntimeEvent::System(frame_system::Event::NewAccount {
                //     account: AccountKeyring::Bob.to_account_id(),
                // }));
                // System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Endowed {
                //     account: AccountKeyring::Bob.to_account_id(),
                //     free_balance: 800,
                // }));
            })
    }
    
    /// test session change
    // session duration is set to 25 blocks
    // this is to test that mock code behaves well
    #[test]
    fn test_session_change() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            assert_eq!(<Runtime as pallet_babe::Config>::EpochDuration::get(), 25);
            assert_eq!(Session::current_index(), 0);
            assert_eq!(Babe::epoch_index(), 0);
            assert_eq!(Babe::current_epoch_start(), 0u64);
            run_to_block(2);
            assert_eq!(Session::current_index(), 0);
            assert_eq!(Babe::epoch_index(), 0);
            run_to_block(24);
            assert_eq!(Session::current_index(), 0);
            assert_eq!(Babe::epoch_index(), 0);
            run_to_block(25);
            assert_eq!(Session::current_index(), 1);
            assert_eq!(Babe::epoch_index(), 1);
            assert_eq!(Babe::current_epoch_start(), 25u64);
            run_to_block(26);
            assert_eq!(Session::current_index(), 1);
            assert_eq!(Babe::epoch_index(), 1);
            run_to_block(50);
            assert_eq!(Session::current_index(), 2);
            assert_eq!(Babe::epoch_index(), 2);
            assert_eq!(Babe::current_epoch_start(), 50u64);
            run_to_block(51);
            assert_eq!(Session::current_index(), 2);
            assert_eq!(Babe::epoch_index(), 2);
            run_to_block(52);
            assert_eq!(Session::current_index(), 2);
            assert_eq!(Babe::epoch_index(), 2);
            run_to_block(60);
            assert_eq!(Session::current_index(), 2);
            assert_eq!(Babe::epoch_index(), 2);
            assert_eq!(Babe::current_epoch_start(), 50u64);
            run_to_block(75);
            assert_eq!(Session::current_index(), 3);
            assert_eq!(Babe::epoch_index(), 3);
            run_to_block(100);
            assert_eq!(Session::current_index(), 4);
            assert_eq!(Babe::epoch_index(), 4);
        })
    }
    
    /// test calling remove_identity
    #[test]
    fn test_remove_identity() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            run_to_block(2);
            // remove the identity
            assert_ok!(Identity::remove_identity(
                frame_system::RawOrigin::Root.into(),
                4,
                None,
                pallet_identity::IdtyRemovalReason::Manual
            ));
            System::assert_has_event(RuntimeEvent::Membership(
                pallet_membership::Event::MembershipRevoked(4),
            ));
            System::assert_has_event(RuntimeEvent::Identity(
                pallet_identity::Event::IdtyRemoved {
                    idty_index: 4,
                    reason: pallet_identity::IdtyRemovalReason::Manual,
                },
            ));
            // since Dave does not have ED, his account is killed
            System::assert_has_event(RuntimeEvent::System(frame_system::Event::KilledAccount {
                account: AccountKeyring::Dave.to_account_id(),
            }));
        });
    }
    
    /// test identity is validated when membership is claimed
    #[test]
    fn test_validate_identity_when_claim() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![
                (AccountKeyring::Eve.to_account_id(), 2000),
                (AccountKeyring::Ferdie.to_account_id(), 1000),
            ])
            .build()
            .execute_with(|| {
                run_to_block(1);
                // alice create identity for Eve
                assert_ok!(Identity::create_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    AccountKeyring::Eve.to_account_id(),
                ));
                run_to_block(2);
                // eve confirms her identity
                assert_ok!(Identity::confirm_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                    "Eeeeeveeeee".into(),
                ));
                run_to_block(3);
                // eve gets certified by bob and charlie
                assert_ok!(Cert::add_cert(
                    frame_system::RawOrigin::Signed(AccountKeyring::Bob.to_account_id()).into(),
                    2,
                    5
                ));
                assert_ok!(Cert::add_cert(
                    frame_system::RawOrigin::Signed(AccountKeyring::Charlie.to_account_id()).into(),
                    3,
                    5
                ));
    
                assert_ok!(Distance::request_distance_evaluation(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                ));
    
                run_to_block(51); // Pass 2 sessions
                assert_ok!(Distance::force_update_evaluation(
                    frame_system::RawOrigin::Root.into(),
                    AccountKeyring::Alice.to_account_id(),
                    pallet_distance::ComputationResult {
                        distances: vec![Perbill::one()],
                    }
                ));
                run_to_block(76); // Pass 1 session
    
                // eve can claim her membership
                assert_ok!(Membership::claim_membership(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                ));
    
                System::assert_has_event(RuntimeEvent::Membership(
                    pallet_membership::Event::MembershipAcquired(5),
                ));
    
                // ferdie can not validate eve identity because already validated
                assert_noop!(
                    Identity::validate_identity(
                        frame_system::RawOrigin::Signed(AccountKeyring::Ferdie.to_account_id()).into(),
                        5,
                    ),
                    pallet_identity::Error::<Runtime>::IdtyAlreadyValidated
                );
            });
    }
    
    /// test membership expiry
    #[test]
    fn test_membership_expiry() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            run_to_block(100);
            System::assert_has_event(RuntimeEvent::Membership(
                pallet_membership::Event::MembershipExpired(1),
            ));
            // membership expiry should not trigger identity removal
            assert!(!System::events().iter().any(|record| record.event
                == RuntimeEvent::Identity(pallet_identity::Event::IdtyRemoved {
                    idty_index: 1,
                    reason: pallet_identity::IdtyRemovalReason::Expired
                })));
        });
    }
    
    #[test]
    fn test_membership_expiry_with_identity_removal() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            run_to_block(100);
    
            System::assert_has_event(RuntimeEvent::Membership(
                pallet_membership::Event::MembershipExpired(4),
            ));
    
            // Trigger pending membership expiry
            run_to_block(
                100 + <Runtime as pallet_membership::Config<Instance1>>::PendingMembershipPeriod::get(),
            );
    
            System::assert_has_event(RuntimeEvent::Identity(
                pallet_identity::Event::IdtyRemoved {
                    idty_index: 4,
                    reason: pallet_identity::IdtyRemovalReason::Other(
                        IdtyRemovalWotReason::MembershipExpired,
                    ),
                },
            ));
        });
    }
    
    /// test membership renewal
    #[test]
    fn test_membership_renewal() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![(AccountKeyring::Alice.to_account_id(), 2000)])
            .build()
            .execute_with(|| {
                assert_ok!(Distance::request_distance_evaluation(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                ));
    
                run_to_block(51); // Pass 2 sessions
                assert_ok!(Distance::force_update_evaluation(
                    frame_system::RawOrigin::Root.into(),
                    AccountKeyring::Alice.to_account_id(),
                    pallet_distance::ComputationResult {
                        distances: vec![Perbill::one()],
                    }
                ));
                run_to_block(76); // Pass 1 session
    
                // renew at block 76
                assert_ok!(Membership::renew_membership(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                ));
                System::assert_has_event(RuntimeEvent::Membership(
                    pallet_membership::Event::MembershipRenewed(1),
                ));
    
                // renew at block 77
                run_to_block(77);
                assert_ok!(Membership::renew_membership(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                ));
                System::assert_has_event(RuntimeEvent::Membership(
                    pallet_membership::Event::MembershipRenewed(1),
                ));
    
                // should expire at block 177 = 77+100
                run_to_block(177);
                System::assert_has_event(RuntimeEvent::Membership(
                    pallet_membership::Event::MembershipExpired(1),
                ));
            });
    }
    
    // test that UD are auto claimed when identity is removed
    #[test]
    fn test_remove_identity_after_one_ud() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            //println!("UdCreationPeriod={}", <Runtime as pallet_universal_dividend::Config>::UdCreationPeriod::get());
            run_to_block(
                (<Runtime as pallet_universal_dividend::Config>::UdCreationPeriod::get()
                    / <Runtime as pallet_babe::Config>::ExpectedBlockTime::get()
                    + 1) as u32,
            );
    
            // before UD, dave has 0 (initial amount)
            run_to_block(1);
            assert_eq!(
                Balances::free_balance(AccountKeyring::Dave.to_account_id()),
                0
            );
    
            // go after UD creation block
            run_to_block(
                (<Runtime as pallet_universal_dividend::Config>::UdCreationPeriod::get()
                    / <Runtime as pallet_babe::Config>::ExpectedBlockTime::get()
                    + 1) as u32,
            );
            // remove identity
            assert_ok!(Identity::remove_identity(
                frame_system::RawOrigin::Root.into(),
                4,
                None,
                pallet_identity::IdtyRemovalReason::Manual
            ));
    
            // Verify events
            // universal dividend was automatically paid to dave
            System::assert_has_event(RuntimeEvent::UniversalDividend(
                pallet_universal_dividend::Event::UdsAutoPaidAtRemoval {
                    count: 1,
                    total: 1_000,
                    who: AccountKeyring::Dave.to_account_id(),
                },
            ));
            // dave account actually received this UD
            System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Deposit {
                who: AccountKeyring::Dave.to_account_id(),
                amount: 1_000,
            }));
            // membership and identity were actually removed
            System::assert_has_event(RuntimeEvent::Membership(
                pallet_membership::Event::MembershipRevoked(4),
            ));
            System::assert_has_event(RuntimeEvent::Identity(
                pallet_identity::Event::IdtyRemoved {
                    idty_index: 4,
                    reason: pallet_identity::IdtyRemovalReason::Manual,
                },
            ));
    
            // thanks to the new UD, Dave has existential deposit and is not killed
            assert!(Identity::identity(4).is_none());
            assert_eq!(
                Balances::free_balance(AccountKeyring::Dave.to_account_id()),
                1_000
            );
        });
    }
    
    /// test that UD are auto claimed when membership expires
    /// and that claimed UD matches expectations
    #[test]
    fn test_ud_claimed_membership_on_and_off() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            // UD are created every 10 blocks from block 4
            run_to_block(4);
            System::assert_has_event(RuntimeEvent::UniversalDividend(
                pallet_universal_dividend::Event::NewUdCreated {
                    amount: 1000,
                    index: 1,
                    monetary_mass: 4_000, // 0 (initial) + 4 * 1000 (produced)
                    members_count: 4,
                },
            ));
            // UD not claimed, still initial balance to initial 0
            assert_eq!(
                Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                0
            );
    
            run_to_block(13);
            // alice identity expires
            assert_ok!(Membership::force_expire_membership(1));
            System::assert_has_event(RuntimeEvent::UniversalDividend(
                pallet_universal_dividend::Event::UdsAutoPaidAtRemoval {
                    count: 1,
                    total: 1_000,
                    who: AccountKeyring::Alice.to_account_id(),
                },
            ));
            // alice balances should be increased by 1 UD
            assert_eq!(
                Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                1000
            );
    
            // UD number 2
            run_to_block(14);
            System::assert_has_event(RuntimeEvent::UniversalDividend(
                pallet_universal_dividend::Event::NewUdCreated {
                    amount: 1000,
                    index: 2,
                    monetary_mass: 7_000, // 4000 + 3 × 1000
                    members_count: 3,     // alice is not member at this UD
                },
            ));
    
            // alice claims back her membership
            assert_ok!(Distance::force_set_distance_status(
                frame_system::RawOrigin::Root.into(),
                1,
                Some((
                    AccountKeyring::Alice.to_account_id(),
                    pallet_distance::DistanceStatus::Valid
                ))
            ));
            assert_ok!(Membership::claim_membership(
                frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into()
            ));
            System::assert_has_event(RuntimeEvent::Membership(
                pallet_membership::Event::MembershipAcquired(1),
            ));
    
            // UD number 3
            run_to_block(24);
            System::assert_has_event(RuntimeEvent::UniversalDividend(
                pallet_universal_dividend::Event::NewUdCreated {
                    amount: 1000,
                    index: 3,
                    monetary_mass: 11000, // 7000 + 4 × 1000
                    members_count: 4,     // alice is member again at this UD
                },
            ));
    
            // one block later, alice claims her new UD
            run_to_block(25);
            assert_ok!(UniversalDividend::claim_uds(
                frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into()
            ));
            System::assert_has_event(RuntimeEvent::UniversalDividend(
                pallet_universal_dividend::Event::UdsClaimed {
                    count: 1,
                    total: 1_000,
                    who: AccountKeyring::Alice.to_account_id(),
                },
            ));
            assert_eq!(
                Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                2000 // one more UD
            );
    
            // println!("{:?}", System::events());
        });
    }
    
    /// test when root removes and identity, all consumers should be deleted
    #[test]
    fn test_remove_smith_identity() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            run_to_block(2);
    
            assert_ok!(Identity::remove_identity(
                frame_system::RawOrigin::Root.into(),
                3,
                None,
                pallet_identity::IdtyRemovalReason::Manual
            ));
            // Verify events
            System::assert_has_event(RuntimeEvent::SmithMembership(
                pallet_membership::Event::MembershipRevoked(3),
            ));
            System::assert_has_event(RuntimeEvent::AuthorityMembers(
                pallet_authority_members::Event::MemberRemoved(3),
            ));
            System::assert_has_event(RuntimeEvent::Membership(
                pallet_membership::Event::MembershipRevoked(3),
            ));
            System::assert_has_event(RuntimeEvent::Identity(
                pallet_identity::Event::IdtyRemoved {
                    idty_index: 3,
                    reason: pallet_identity::IdtyRemovalReason::Manual,
                },
            ));
        });
    }
    
    #[test]
    fn test_smith_certification() {
        // 3 smith (1. alice, 2. bob, 3. charlie)
        // 4 identities (4. dave)
        // no identity 5. eve
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            run_to_block(1);
    
            // alice can renew smith cert to bob
            assert_ok!(SmithCert::add_cert(
                frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                1, // alice
                2  // bob
            ));
    
            // THIS IS STRANGE BEHAVIOR
            // bob can add new smith cert to to dave even he did not requested smith membership
            assert_ok!(SmithCert::add_cert(
                frame_system::RawOrigin::Signed(AccountKeyring::Bob.to_account_id()).into(),
                2, // bob
                4  // dave
            ));
    
            // charlie can not add new cert to eve (no identity)
            assert_noop!(
                SmithCert::add_cert(
                    frame_system::RawOrigin::Signed(AccountKeyring::Charlie.to_account_id()).into(),
                    3, // charlie
                    5  // eve
                ),
                // SmithSubWot::Error::IdtyNotFound,
                pallet_duniter_wot::Error::<gdev_runtime::Runtime, pallet_certification::Instance2>::IdtyNotFound,
            );
        });
    }
    
    /// test create new account with balance lower than existential deposit
    // the treasury gets the dust
    #[test]
    fn test_create_new_account_with_insufficient_balance() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![(AccountKeyring::Alice.to_account_id(), 1_000)])
            .build()
            .execute_with(|| {
                run_to_block(2);
                // Treasury should start empty
                // FIXME it actually starts with ED
                assert_eq!(Balances::free_balance(Treasury::account_id()), 100);
    
                // Should be able to transfer 4 units to a new account
                assert_ok!(Balances::transfer(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    MultiAddress::Id(AccountKeyring::Eve.to_account_id()),
                    300
                ));
    
                System::assert_has_event(RuntimeEvent::System(frame_system::Event::NewAccount {
                    account: AccountKeyring::Eve.to_account_id(),
                }));
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Endowed {
                    account: AccountKeyring::Eve.to_account_id(),
                    free_balance: 300,
                }));
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Transfer {
                    from: AccountKeyring::Alice.to_account_id(),
                    to: AccountKeyring::Eve.to_account_id(),
                    amount: 300,
                }));
    
                // At next block, the new account must be reaped because its balance is not sufficient
                // to pay the "new account tax"
                run_to_block(3);
    
                System::assert_has_event(RuntimeEvent::Account(
                    pallet_duniter_account::Event::ForceDestroy {
                        who: AccountKeyring::Eve.to_account_id(),
                        balance: 300,
                    },
                ));
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Deposit {
                    who: Treasury::account_id(),
                    amount: 300,
                }));
                System::assert_has_event(RuntimeEvent::Treasury(pallet_treasury::Event::Deposit {
                    value: 300,
                }));
    
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Eve.to_account_id()),
                    0
                );
                // 100 initial + 300 recycled from Eve account's destruction
                assert_eq!(Balances::free_balance(Treasury::account_id()), 400);
            });
    }
    
    /// test new account creation
    #[test]
    fn test_create_new_account() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![(AccountKeyring::Alice.to_account_id(), 1_000)])
            .build()
            .execute_with(|| {
                run_to_block(2);
                assert_eq!(Balances::free_balance(Treasury::account_id()), 100);
    
                // Should be able to transfer 5 units to a new account
                assert_ok!(Balances::transfer(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    MultiAddress::Id(AccountKeyring::Eve.to_account_id()),
                    500
                ));
                //println!("{:#?}", System::events());
                System::assert_has_event(RuntimeEvent::System(frame_system::Event::NewAccount {
                    account: AccountKeyring::Eve.to_account_id(),
                }));
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Endowed {
                    account: AccountKeyring::Eve.to_account_id(),
                    free_balance: 500,
                }));
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Transfer {
                    from: AccountKeyring::Alice.to_account_id(),
                    to: AccountKeyring::Eve.to_account_id(),
                    amount: 500,
                }));
    
                // At next block, the new account must be created,
                // and new account tax should be collected and deposited in the treasury
                run_to_block(3);
    
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Withdraw {
                    who: AccountKeyring::Eve.to_account_id(),
                    amount: 300,
                }));
                System::assert_has_event(RuntimeEvent::Balances(pallet_balances::Event::Deposit {
                    who: Treasury::account_id(),
                    amount: 300,
                }));
                System::assert_has_event(RuntimeEvent::Treasury(pallet_treasury::Event::Deposit {
                    value: 300,
                }));
    
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Eve.to_account_id()),
                    200
                );
                // 100 initial + 300 deposit
                assert_eq!(Balances::free_balance(Treasury::account_id()), 400);
    
                // A random id request should be registered
                assert_eq!(
                    Account::pending_random_id_assignments(0),
                    Some(AccountKeyring::Eve.to_account_id())
                );
    
                // We can't remove the account until the random id is assigned
                run_to_block(4);
                // can not remove using transfer
                assert_noop!(
                    Balances::transfer(
                        frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                        MultiAddress::Id(AccountKeyring::Alice.to_account_id()),
                        200
                    ),
                    sp_runtime::DispatchError::ConsumerRemaining,
                );
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Eve.to_account_id()),
                    200
                );
                // can not remove using transfer_all either
                assert_noop!(
                    Balances::transfer_all(
                        frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                        MultiAddress::Id(AccountKeyring::Alice.to_account_id()),
                        false
                    ),
                    sp_runtime::DispatchError::ConsumerRemaining,
                );
                // Transfer failed, so free_balance remains the same
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Eve.to_account_id()),
                    200
                );
                // TODO detail account removal
            });
    }
    
    #[test]
    fn test_create_new_idty() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![(AccountKeyring::Alice.to_account_id(), 1_000)])
            .build()
            .execute_with(|| {
                run_to_block(2);
    
                // Should be able to create an identity
                assert_ok!(Balances::transfer(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    MultiAddress::Id(AccountKeyring::Eve.to_account_id()),
                    200
                ));
                assert_ok!(Identity::create_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    AccountKeyring::Eve.to_account_id(),
                ));
    
                // At next block, nothing should be preleved
                run_to_block(3);
                let events = System::events();
                assert_eq!(events.len(), 0);
    
                // A random id request should be registered
                assert_eq!(
                    Account::pending_random_id_assignments(0),
                    Some(AccountKeyring::Eve.to_account_id())
                );
            });
    }
    
    #[test]
    fn test_create_new_idty_without_founds() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![(AccountKeyring::Alice.to_account_id(), 1_000)])
            .build()
            .execute_with(|| {
                run_to_block(2);
    
                // Should be able to create an identity without founds
                assert_ok!(Identity::create_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    AccountKeyring::Eve.to_account_id(),
                ));
    
                // At next block, nothing should be preleved
                run_to_block(3);
                let events = System::events();
                assert_eq!(events.len(), 0);
    
                // Deposit some founds on the identity account,
                // this should trigger the random id assignemt
                assert_ok!(Balances::transfer(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    MultiAddress::Id(AccountKeyring::Eve.to_account_id()),
                    200
                ));
    
                // At next block, nothing should be preleved,
                // and a random id request should be registered
                run_to_block(4);
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Eve.to_account_id()),
                    200
                );
                assert_eq!(
                    Account::pending_random_id_assignments(0),
                    Some(AccountKeyring::Eve.to_account_id())
                );
            });
    }
    
    /// test that newly validated identity gets initialized with the next UD
    #[test]
    fn test_validate_new_idty_after_few_uds() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![
                (AccountKeyring::Alice.to_account_id(), 1_000),
                (AccountKeyring::Bob.to_account_id(), 1_000),
                (AccountKeyring::Charlie.to_account_id(), 1_000),
                (AccountKeyring::Eve.to_account_id(), 1_000),
            ])
            .build()
            .execute_with(|| {
                run_to_block(21);
    
                // Should be able to create an identity
                assert_ok!(Balances::transfer(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    MultiAddress::Id(AccountKeyring::Eve.to_account_id()),
                    200
                ));
                assert_ok!(Identity::create_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    AccountKeyring::Eve.to_account_id(),
                ));
    
                // At next block, the created identity should be confirmed by its owner
                run_to_block(22);
                assert_ok!(Identity::confirm_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                    pallet_identity::IdtyName::from("Eve"),
                ));
    
                // At next block, Bob should be able to certify and validate the new identity
                run_to_block(23);
                assert_ok!(Cert::add_cert(
                    frame_system::RawOrigin::Signed(AccountKeyring::Bob.to_account_id()).into(),
                    2,
                    5,
                ));
                assert_ok!(Distance::force_set_distance_status(
                    frame_system::RawOrigin::Root.into(),
                    5,
                    Some((
                        AccountKeyring::Bob.to_account_id(),
                        pallet_distance::DistanceStatus::Valid
                    ))
                ));
                assert_ok!(Identity::validate_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Bob.to_account_id()).into(),
                    5,
                ));
    
                // The new member should have first_eligible_ud equal to three
                assert!(Identity::identity(5).is_some());
                assert_eq!(
                    Identity::identity(5).unwrap().data,
                    IdtyData {
                        // first eligible UD will be at block 30
                        first_eligible_ud: pallet_universal_dividend::FirstEligibleUd::from(3),
                    }
                );
            });
    }
    
    /// test that newly validated identity gets initialized with the next UD
    /// even when the method used is membership claim
    #[test]
    fn test_claim_memberhsip_after_few_uds() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![
                (AccountKeyring::Alice.to_account_id(), 1_000),
                (AccountKeyring::Bob.to_account_id(), 1_000),
                (AccountKeyring::Charlie.to_account_id(), 1_000),
            ])
            .build()
            .execute_with(|| {
                run_to_block(21);
    
                // Should be able to create an identity
                assert_ok!(Identity::create_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    AccountKeyring::Eve.to_account_id(),
                ));
    
                // At next block, the created identity should be confirmed by its owner
                run_to_block(22);
                assert_ok!(Identity::confirm_identity(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                    pallet_identity::IdtyName::from("Eve"),
                ));
    
                // At next block, Bob should be able to certify the new identity
                run_to_block(23);
                assert_ok!(Cert::add_cert(
                    frame_system::RawOrigin::Signed(AccountKeyring::Bob.to_account_id()).into(),
                    2,
                    5,
                ));
    
                // eve should be able to claim her membership
                assert_ok!(Distance::force_set_distance_status(
                    frame_system::RawOrigin::Root.into(),
                    5,
                    Some((
                        AccountKeyring::Eve.to_account_id(),
                        pallet_distance::DistanceStatus::Valid
                    ))
                ));
                assert_ok!(Membership::claim_membership(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                ));
    
                // The new member should have first_eligible_ud equal to three
                assert!(Identity::identity(5).is_some());
                assert_eq!(
                    Identity::identity(5).unwrap().data,
                    IdtyData {
                        // first eligible UD will be at block 30
                        first_eligible_ud: pallet_universal_dividend::FirstEligibleUd::from(3),
                    }
                );
            });
    }
    
    /// test oneshot accounts
    #[test]
    fn test_oneshot_accounts() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![
                (AccountKeyring::Alice.to_account_id(), 1_000),
                (AccountKeyring::Eve.to_account_id(), 1_000),
            ])
            .build()
            .execute_with(|| {
                run_to_block(6);
    
                assert_ok!(OneshotAccount::create_oneshot_account(
                    frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                    MultiAddress::Id(AccountKeyring::Eve.to_account_id()),
                    400
                ));
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                    600
                );
                run_to_block(7);
    
                assert_ok!(OneshotAccount::consume_oneshot_account_with_remaining(
                    frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                    0,
                    pallet_oneshot_account::Account::Oneshot(MultiAddress::Id(
                        AccountKeyring::Ferdie.to_account_id()
                    )),
                    pallet_oneshot_account::Account::Normal(MultiAddress::Id(
                        AccountKeyring::Alice.to_account_id()
                    )),
                    300
                ));
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                    700
                );
                assert_noop!(
                    OneshotAccount::consume_oneshot_account(
                        frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                        0,
                        pallet_oneshot_account::Account::Oneshot(MultiAddress::Id(
                            AccountKeyring::Ferdie.to_account_id()
                        )),
                    ),
                    pallet_oneshot_account::Error::<Runtime>::OneshotAccountNotExist
                );
                run_to_block(8);
                // Oneshot account consumption should not increment the nonce
                assert_eq!(
                    System::account(AccountKeyring::Eve.to_account_id()).nonce,
                    0
                );
    
                assert_ok!(OneshotAccount::consume_oneshot_account(
                    frame_system::RawOrigin::Signed(AccountKeyring::Ferdie.to_account_id()).into(),
                    0,
                    pallet_oneshot_account::Account::Normal(MultiAddress::Id(
                        AccountKeyring::Alice.to_account_id()
                    )),
                ));
                assert_eq!(
                    Balances::free_balance(AccountKeyring::Alice.to_account_id()),
                    1000
                );
                assert_noop!(
                    OneshotAccount::consume_oneshot_account(
                        frame_system::RawOrigin::Signed(AccountKeyring::Eve.to_account_id()).into(),
                        0,
                        pallet_oneshot_account::Account::Normal(MultiAddress::Id(
                            AccountKeyring::Alice.to_account_id()
                        )),
                    ),
                    pallet_oneshot_account::Error::<Runtime>::OneshotAccountNotExist
                );
            });
    }
    
    /// test linking account to identity
    #[test]
    fn test_link_account() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            let genesis_hash = System::block_hash(0);
            let alice = AccountKeyring::Alice.to_account_id();
            let ferdie = AccountKeyring::Ferdie.to_account_id();
            let payload = (b"link", genesis_hash, 1u32, ferdie.clone()).encode();
            let signature = AccountKeyring::Ferdie.sign(&payload);
            // Ferdie's account can be linked to Alice identity
            assert_ok!(Identity::link_account(
                frame_system::RawOrigin::Signed(alice).into(),
                ferdie,
                signature.into()
            ));
        })
    }
    
    /// test change owner key
    #[test]
    fn test_change_owner_key() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            let genesis_hash = System::block_hash(0);
            let dave = AccountKeyring::Dave.to_account_id();
            let ferdie = AccountKeyring::Ferdie.to_account_id();
            let payload = (b"icok", genesis_hash, 4u32, dave.clone()).encode();
            let signature = AccountKeyring::Ferdie.sign(&payload);
            // Dave can change his owner key to Ferdie's
            assert_ok!(Identity::change_owner_key(
                frame_system::RawOrigin::Signed(dave).into(),
                ferdie,
                signature.into()
            ));
        })
    }
    
    /// test genesis account of identity is linked to identity
    // (and account without identity is not linked)
    #[test]
    fn test_genesis_account_of_identity_linked() {
        ExtBuilder::new(1, 3, 4)
            .with_initial_balances(vec![(AccountKeyring::Eve.to_account_id(), 8888)])
            .build()
            .execute_with(|| {
                // Alice account
                let account_id = AccountKeyring::Alice.to_account_id();
                // Alice identity index is 1
                assert_eq!(Identity::identity_index_of(&account_id), Some(1));
                // get account data
                let account_data = frame_system::Pallet::<Runtime>::get(&account_id);
                assert_eq!(account_data.linked_idty, Some(1));
                // Eve is not member, her account has no linked identity
                assert_eq!(
                    frame_system::Pallet::<Runtime>::get(&AccountKeyring::Eve.to_account_id())
                        .linked_idty,
                    None
                );
            })
    }
    
    /// test unlink identity from account
    #[test]
    fn test_unlink_identity() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            let alice_account = AccountKeyring::Alice.to_account_id();
            // check that Alice is 1
            assert_eq!(Identity::identity_index_of(&alice_account), Some(1));
    
            // Alice can unlink her identity from her account
            assert_ok!(Account::unlink_identity(
                frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
            ));
    
            // Alice account has been unlinked
            assert_eq!(
                frame_system::Pallet::<Runtime>::get(&alice_account).linked_idty,
                None
            );
        })
    }
    
    /// test that the account of a newly created identity is linked to the identity
    #[test]
    fn test_new_account_linked() {
        ExtBuilder::new(1, 3, 4).build().execute_with(|| {
            let eve_account = AccountKeyring::Eve.to_account_id();
            assert_eq!(
                frame_system::Pallet::<Runtime>::get(&eve_account).linked_idty,
                None
            );
            // Alice creates identity for Eve
            assert_ok!(Identity::create_identity(
                frame_system::RawOrigin::Signed(AccountKeyring::Alice.to_account_id()).into(),
                eve_account.clone(),
            ));
            // then eve account should be linked to her identity
            assert_eq!(
                frame_system::Pallet::<Runtime>::get(&eve_account).linked_idty,
                Some(5)
            );
        })
    }