isValidReduxReducer Checks if the reducer is valid Installation npm install --save is-valid-redux-reducer Usage import isValidReduxReducer from 'is-valid-redux-reducer' expect(isValidReduxReducer({})).to.be.falseexpect(isValidReduxReducer((state, action) => state)).to.be.falseexpect(isValidReduxReducer((state, action) => ({}))).to.be.falseexpect(isValidReduxReducer((state = {}, action) => state)).to.be.true License MIT