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| 1 | +import { universalMetaReducer } from './app.metareducers'; |
| 2 | +import { StoreActionTypes } from './store.actions'; |
| 3 | + |
| 4 | +describe('universalMetaReducer', () => { |
| 5 | + const mockReducer = (state: any, action: any) => state; |
| 6 | + |
| 7 | + it('should pass state through for unknown action', () => { |
| 8 | + const state = { core: { route: { queryParams: { a: '1' }, params: {} } } }; |
| 9 | + const result = universalMetaReducer(mockReducer)(state, { type: 'UNKNOWN' }); |
| 10 | + expect(result).toEqual(state); |
| 11 | + }); |
| 12 | + |
| 13 | + describe('REHYDRATE', () => { |
| 14 | + it('should merge payload into state', () => { |
| 15 | + const state = { otherProp: 'keep-me' }; |
| 16 | + const payload = { core: { route: { queryParams: { f: ['x'] }, params: {} } } }; |
| 17 | + const result = universalMetaReducer(mockReducer)(state, { |
| 18 | + type: StoreActionTypes.REHYDRATE, |
| 19 | + payload, |
| 20 | + }); |
| 21 | + expect(result.otherProp).toBe('keep-me'); |
| 22 | + expect(result.core.route).toEqual({ queryParams: {}, params: {} }); |
| 23 | + }); |
| 24 | + |
| 25 | + it('should reset core.route to empty after rehydration', () => { |
| 26 | + const state = { core: { route: { queryParams: { f: ['x'] }, params: { id: '123' } } } }; |
| 27 | + const payload = { core: { route: { queryParams: { stale: ['val'] }, params: { stale: 'val' } } } }; |
| 28 | + const result = universalMetaReducer(mockReducer)(state, { |
| 29 | + type: StoreActionTypes.REHYDRATE, |
| 30 | + payload, |
| 31 | + }); |
| 32 | + expect(result.core.route).toEqual({ queryParams: {}, params: {} }); |
| 33 | + }); |
| 34 | + |
| 35 | + it('should not crash when state.core is undefined', () => { |
| 36 | + const state = {}; |
| 37 | + const payload = { core: { route: { queryParams: { a: '1' }, params: {} } } }; |
| 38 | + const result = universalMetaReducer(mockReducer)(state, { |
| 39 | + type: StoreActionTypes.REHYDRATE, |
| 40 | + payload, |
| 41 | + }); |
| 42 | + expect(result.core.route).toEqual({ queryParams: {}, params: {} }); |
| 43 | + }); |
| 44 | + |
| 45 | + it('should preserve other core properties when resetting route', () => { |
| 46 | + const state = { core: { route: {} } }; |
| 47 | + const payload = { core: { route: { queryParams: { x: '1' }, params: {} }, otherProp: 'keep-me' } }; |
| 48 | + const result = universalMetaReducer(mockReducer)(state, { |
| 49 | + type: StoreActionTypes.REHYDRATE, |
| 50 | + payload, |
| 51 | + }); |
| 52 | + expect(result.core.otherProp).toBe('keep-me'); |
| 53 | + expect(result.core.route).toEqual({ queryParams: {}, params: {} }); |
| 54 | + }); |
| 55 | + |
| 56 | + it('should handle REPLAY action (no-op)', () => { |
| 57 | + const state = { core: { route: { queryParams: { a: '1' }, params: {} } } }; |
| 58 | + const result = universalMetaReducer(mockReducer)(state, { |
| 59 | + type: StoreActionTypes.REPLAY, |
| 60 | + }); |
| 61 | + expect(result).toEqual(state); |
| 62 | + }); |
| 63 | + }); |
| 64 | +}); |
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