import { Component } from '../../src/preact'; import { createLinkedState } from '../../src/linked-state'; describe('linked-state', () => { class TestComponent extends Component { } let testComponent, linkFunction; before( () => { testComponent = new TestComponent(); sinon.spy(TestComponent.prototype, 'setState'); }); describe('createLinkedState without eventPath argument', () => { before( () => { linkFunction = createLinkedState(testComponent,'testStateKey'); expect(linkFunction).to.be.a('function'); }); beforeEach( () => { TestComponent.prototype['setState'].reset(); }); it('should use value attribute on text input when no eventPath is supplied', () => { let element = document.createElement('input'); element.type= 'text'; element.value = 'newValue'; linkFunction({ currentTarget: element }); expect(TestComponent.prototype.setState).to.have.been.calledOnce; expect(TestComponent.prototype.setState).to.have.been.calledWith({'testStateKey': 'newValue'}); linkFunction.call(element); expect(TestComponent.prototype.setState).to.have.been.calledTwice; expect(TestComponent.prototype.setState.secondCall).to.have.been.calledWith({'testStateKey': 'newValue'}); }); it('should use checked attribute on checkbox input when no eventPath is supplied', () => { let checkboxElement = document.createElement('input'); checkboxElement.type= 'checkbox'; checkboxElement.checked = true; linkFunction({ currentTarget: checkboxElement }); expect(TestComponent.prototype.setState).to.have.been.calledOnce; expect(TestComponent.prototype.setState).to.have.been.calledWith({'testStateKey': true}); }); it('should use checked attribute on radio input when no eventPath is supplied', () => { let radioElement = document.createElement('input'); radioElement.type= 'radio'; radioElement.checked = true; linkFunction({ currentTarget: radioElement }); expect(TestComponent.prototype.setState).to.have.been.calledOnce; expect(TestComponent.prototype.setState).to.have.been.calledWith({'testStateKey': true}); }); it('should set dot notated state key appropriately', () => { linkFunction = createLinkedState(testComponent,'nested.state.key'); let element = document.createElement('input'); element.type= 'text'; element.value = 'newValue'; linkFunction({ currentTarget: element }); expect(TestComponent.prototype.setState).to.have.been.calledOnce; expect(TestComponent.prototype.setState).to.have.been.calledWith({nested: {state: {key: 'newValue'}}}); }); }); describe('createLinkedState with eventPath argument', () => { before( () => { linkFunction = createLinkedState(testComponent,'testStateKey', 'nested.path'); expect(linkFunction).to.be.a('function'); }); beforeEach( () => { TestComponent.prototype['setState'].reset(); }); it('should give precedence to nested.path on event over nested.path on component', () => { let event = {nested: {path: 'nestedPathValueFromEvent'}}; let component = {_component: {nested: {path: 'nestedPathValueFromComponent'}}}; linkFunction.call(component, event); expect(TestComponent.prototype.setState).to.have.been.calledOnce; expect(TestComponent.prototype.setState).to.have.been.calledWith({'testStateKey': 'nestedPathValueFromEvent'}); }); }); });