# All files / src/tx/applyTx checkValidatorLogout.js

100% Statements 11/11
100% Branches 8/8
100% Functions 1/1
100% Lines 11/11

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     /**
     * Copyright (c) 2018-present, Leap DAO (leapdao.org)
     *
     * This source code is licensed under the Mozilla Public License Version 2.0
     * found in the LICENSE file in the root directory of this source tree.
     */

    const { Type } = require('leap-core');

    module.exports = (state, tx) => {
      if (tx.type !== Type.VALIDATOR_LOGOUT) {
        throw new Error('validatorJoin tx expected');
      }

      if (
        state.slots[tx.options.slotId] &&
        tx.options.eventsCount !== state.slots[tx.options.slotId].eventsCount + 1
      ) {
        throw new Error('eventsCount expected to be x + 1');
      }

      if (!state.slots[tx.options.slotId]) {
        throw new Error(`Slot ${tx.options.slotId} is empty`);
      }

      state.slots[tx.options.slotId].activationEpoch = tx.options.activationEpoch;
      state.slots[tx.options.slotId].eventsCount = tx.options.eventsCount;
      state.slots[tx.options.slotId].newSigner = tx.options.newSigner;
    };