1 files changed, 124 insertions, 0 deletions
diff --git a/thirdparty/preact/test/browser/spec.js b/thirdparty/preact/test/browser/spec.js
new file mode 100644
index 000000000..eb48151f0
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+++ b/thirdparty/preact/test/browser/spec.js
@@ -0,0 +1,124 @@
+import { h, render, rerender, Component } from '../../src/preact';
+/** @jsx h */
+
+describe('Component spec', () => {
+	let scratch;
+
+	before( () => {
+		scratch = document.createElement('div');
+		(document.body || document.documentElement).appendChild(scratch);
+	});
+
+	beforeEach( () => {
+		scratch.innerHTML = '';
+	});
+
+	after( () => {
+		scratch.parentNode.removeChild(scratch);
+		scratch = null;
+	});
+
+	describe('defaultProps', () => {
+		it('should apply default props on initial render', () => {
+			class WithDefaultProps extends Component {
+				constructor(props, context) {
+					super(props, context);
+					expect(props).to.be.deep.equal({
+						fieldA: 1, fieldB: 2,
+						fieldC: 1, fieldD: 2
+					});
+				}
+				render() {
+					return <div />;
+				}
+			}
+			WithDefaultProps.defaultProps = { fieldC: 1, fieldD: 1 };
+			render(<WithDefaultProps fieldA={1} fieldB={2} fieldD={2} />, scratch);
+		});
+
+		it('should apply default props on rerender', () => {
+			let doRender;
+			class Outer extends Component {
+				constructor() {
+					super();
+					this.state = { i:1 };
+				}
+				componentDidMount() {
+					doRender = () => this.setState({ i: 2 });
+				}
+				render(props, { i }) {
+					return <WithDefaultProps fieldA={1} fieldB={i} fieldD={i} />;
+				}
+			}
+			class WithDefaultProps extends Component {
+				constructor(props, context) {
+					super(props, context);
+					this.ctor(props, context);
+				}
+				ctor(){}
+				componentWillReceiveProps() {}
+				render() {
+					return <div />;
+				}
+			}
+			WithDefaultProps.defaultProps = { fieldC: 1, fieldD: 1 };
+
+			let proto = WithDefaultProps.prototype;
+			sinon.spy(proto, 'ctor');
+			sinon.spy(proto, 'componentWillReceiveProps');
+			sinon.spy(proto, 'render');
+
+			render(<Outer />, scratch);
+			doRender();
+
+			const PROPS1 = {
+				fieldA: 1, fieldB: 1,
+				fieldC: 1, fieldD: 1
+			};
+
+			const PROPS2 = {
+				fieldA: 1, fieldB: 2,
+				fieldC: 1, fieldD: 2
+			};
+
+			expect(proto.ctor).to.have.been.calledWith(PROPS1);
+			expect(proto.render).to.have.been.calledWith(PROPS1);
+
+			rerender();
+
+			// expect(proto.ctor).to.have.been.calledWith(PROPS2);
+			expect(proto.componentWillReceiveProps).to.have.been.calledWith(PROPS2);
+			expect(proto.render).to.have.been.calledWith(PROPS2);
+		});
+
+		// @TODO: migrate this to preact-compat
+		xit('should cache default props', () => {
+			class WithDefaultProps extends Component {
+				constructor(props, context) {
+					super(props, context);
+					expect(props).to.be.deep.equal({
+						fieldA: 1, fieldB: 2,
+						fieldC: 1, fieldD: 2,
+						fieldX: 10
+					});
+				}
+				getDefaultProps() {
+					return { fieldA: 1, fieldB: 1 };
+				}
+				render() {
+					return <div />;
+				}
+			}
+			WithDefaultProps.defaultProps = { fieldC: 1, fieldD: 1 };
+			sinon.spy(WithDefaultProps.prototype, 'getDefaultProps');
+			render((
+				<div>
+					<WithDefaultProps fieldB={2} fieldD={2} fieldX={10} />
+					<WithDefaultProps fieldB={2} fieldD={2} fieldX={10} />
+					<WithDefaultProps fieldB={2} fieldD={2} fieldX={10} />
+				</div>
+			), scratch);
+			expect(WithDefaultProps.prototype.getDefaultProps).to.be.calledOnce;
+		});
+	});
+});