* HoldReason: Improve usage

`HoldReason` was switched recently to use the `composite_enum` attribute that will merge the enums
from all pallets in the runtime to `RuntimeHoldReason`. `pallet-nis` was still requiring that the
variant was passed as constant to call `hold`. The proper implementation is to use the `HoldReason`
from inside the pallet directly when calling `hold`. This is done by adding a `RuntimeHoldReason` as
type to the `Config` trait and requiring that `Currency` is using the same reason. Besides that the
pr changes the name `HoldIdentifier` in `pallet_balances::Config` to `RuntimeHoldReason`.

* Update frame/nis/src/lib.rs

Co-authored-by: Oliver Tale-Yazdi <[email protected]>

* Review comment

* Fixes

---------

Co-authored-by: Oliver Tale-Yazdi <[email protected]>

* Adds integration test for slashed/chilled validator with subsequent validation intention

* Removes unecessary comment

* Update frame/election-provider-multi-phase/test-staking-e2e/src/lib.rs

Co-authored-by: Kian Paimani <[email protected]>

* Update frame/election-provider-multi-phase/test-staking-e2e/src/lib.rs

Co-authored-by: Kian Paimani <[email protected]>

* Addresses PR review comments

* Fixes after conflict resolved

---------

Co-authored-by: parity-processbot <>
Co-authored-by: Kian Paimani <[email protected]>

* update set_controller

* clone

* bond uses `stash`

* remove controller from bond(), chill_other test works

* remove ctlr from testing_utils &  dead ctlr -> dead payee

* mvs controllers to stashes for 3 tests

* migrate mock bond fns & fix 1 test

* mvs controllers to stashes for 7 tests

* mvs controllers to stashes for 9 tests

* remove double_controlling_should_fail

* remove double_staking_should_fail

* mvs controllers to stashes for 10 tests

* mvs controllers to stashes for 2 tests

* remove payout_creates_controller

* mvs controllers to stashes for 27 tests

* remove println!

* fix rewards_should_work

* fix test_payout_stakers

* fix bond benchmark

* clone

* rm unused import

* rm unused var

* rm controller from create_offender

* fix GenesisConfig stakers

* fix controllers in consensus pallets

* fix unqiue controller in chain_spec

* fmt

* fix create_offender

* fix set_controller benchmark

* add TODO

* create_unique_stash_controller

* staking benchmarks working

* fmt

* fix args

* rm println

* import

* import

* fix fast unstake tests

* fix staking-tests-e2e

* fix root-offenses

* fmt

* differentiate controller to stash

* bring back change_controller_works w. unique ctrl

* bring back double_staking_should_fail

* double_controlling_attempt_should_fail

* bring back payout_creates_controller

* add commnet to controller balances

* + set_controller call description

* fmt

* rm clones

* fmt

* clippy fixes

* fmt

* update README

* small fixes

* use controller_to_be_deprecated

* .comment

* comment

* bump zombienet version

* ci

---------

Co-authored-by: parity-processbot <>
Co-authored-by: Javier Viola <[email protected]>

This ensures that it is actually tested as part of the CI. There is also no need to have it separate.

* EPM and staking pallets: Adds new crate for integration tests

a

* Adds ExtBuilder and helpers with initial conditions assertions

* removes account helpers; adds staking, session, etc genesis

* Adds kusama incident test case

* Prepare for slashing test

* Adds solution submission

* slash_through_offending_threshold

* Renames e2e integration tests dir and crate

* consistently slash 10% of validator set

* finishes continous_slashes_below_offending_threshold test

* Update frame/election-provider-multi-phase/test-staking-e2e/src/lib.rs

Co-authored-by: Ankan <[email protected]>

* Update frame/election-provider-multi-phase/test-staking-e2e/src/lib.rs

Co-authored-by: Ankan <[email protected]>

* Update frame/election-provider-multi-phase/test-staking-e2e/src/lib.rs

Co-authored-by: Kian Paimani <[email protected]>

* Update frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs

Co-authored-by: Kian Paimani <[email protected]>

* Update frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs

Co-authored-by: Kian Paimani <[email protected]>

* Update frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs

Co-authored-by: Kian Paimani <[email protected]>

* mock fixes

* Additional checks to delayed solution eras and mock fixes

* nits and addresses review comments; splits ext_builder into one per pallet

* helper to set balances ext builder

* bring up mock.rs to master

* integration test fixes and additions

---------

Co-authored-by: Ankan <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>