import { expect } from 'chai';

import {
    getCrudLoading,
    getDocs
} from 'selectors/crud';

describe('CRUD selectors', () => {
    describe('getCrudLoading', () => {
        const route = 'employees';

        it('should return true if the CRUD page is loading', () => {
            const state = {
                crud: {
                    [route]: {
                        loading: true,
                        items: []
                    }
                }
            };

            expect(getCrudLoading(state, route)).to.equal(true);
        });

        it('should return false if the CRUD page is not loading', () => {
            expect(getCrudLoading({
                crud: {
                    [route]: {
                        loading: false
                    },
                    otherRoute: {
                        loading: true
                    }
                }
            }), route)
                .to.equal(false);

            expect(getCrudLoading({
                crud: {}
            }), route)
                .to.equal(false);
        });
    });

    describe('getDocs', () => {
        const route = 'employees';

        it('should return the list of docs', () => {
            const state = {
                crud: {
                    [route]: {
                        items: [
                            {
                                id: '<actualId>',
                                name: 'John Doe',
                                email: 'john.doe@mubaloo.com'
                            }
                        ]
                    }
                }
            };

            const result = getDocs(state, route);

            expect(result).to.deep.equal(state.crud[route].items);
        });

        it('should return an empty array by default', () => {
            const state = {
                crud: {}
            };

            const result = getDocs(state, route);

            expect(result).to.deep.equal([]);
        });

        it('should memoise default results', () => {
            const state = {
                crud: {}
            };

            const resultA = getDocs(state, route);
            const resultB = getDocs(state, route);

            expect(resultA).to.equal(resultB);
        });
    });
});