File size: 1,218 Bytes
97420cf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | /* eslint-env jest */
import reducer, {clearHoveredItem, setHoveredItem} from '../../src/reducers/hover';
test('initialState', () => {
let defaultState;
expect(reducer(defaultState /* state */, {type: 'anything'} /* action */)).toBeNull();
});
test('setHoveredItem', () => {
let defaultState;
const item1 = 1;
const item2 = 2;
expect(reducer(defaultState /* state */, setHoveredItem(item1) /* action */)).toBe(item1);
expect(reducer(item1 /* state */, setHoveredItem(item2) /* action */)).toBe(item2);
});
test('clearHoveredItem', () => {
let defaultState;
const item = 1;
expect(reducer(defaultState /* state */, clearHoveredItem() /* action */)).toBeNull();
expect(reducer(item /* state */, clearHoveredItem() /* action */)).toBeNull();
});
test('invalidSetHoveredItem', () => {
let defaultState;
const item = 1;
const nonItem = {random: 'object'};
let undef;
expect(reducer(defaultState /* state */, setHoveredItem(nonItem) /* action */)).toBeNull();
expect(reducer(item /* state */, setHoveredItem(nonItem) /* action */))
.toBe(item);
expect(reducer(item /* state */, setHoveredItem(undef) /* action */))
.toBe(item);
});
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