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/**
* Copyright 2013-2014 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @emails react-core
* @jsx React.DOM
*/
"use strict";
describe('sliceChildren', function() {
var React;
var ReactTestUtils;
var sliceChildren;
var reactComponentExpect;
var Partial;
beforeEach(function() {
React = require('React');
ReactTestUtils = require('ReactTestUtils');
sliceChildren = require('sliceChildren');
reactComponentExpect = require('reactComponentExpect');
Partial = React.createClass({
render: function() {
return (
<div>
{sliceChildren(
this.props.children,
this.props.start,
this.props.end
)}
</div>
);
}
});
});
function renderAndSlice(set, start, end) {
var instance = <Partial start={start} end={end}>{set}</Partial>;
instance = ReactTestUtils.renderIntoDocument(instance);
var rendered = reactComponentExpect(instance)
.expectRenderedChild()
.instance();
return rendered.props.children;
}
it('should render the whole set if start zero is supplied', function() {
var fullSet = [
<div key="A" />,
<div key="B" />,
<div key="C" />
];
var children = renderAndSlice(fullSet, 0);
expect(children).toEqual({
'.$A': fullSet[0],
'.$B': fullSet[1],
'.$C': fullSet[2]
});
});
it('should render the remaining set if no end index is supplied', function() {
var fullSet = [
<div key="A" />,
<div key="B" />,
<div key="C" />
];
var children = renderAndSlice(fullSet, 1);
expect(children).toEqual({
'.$B': fullSet[1],
'.$C': fullSet[2]
});
});
it('should exclude everything at or after the end index', function() {
var fullSet = [
<div key="A" />,
<div key="B" />,
<div key="C" />,
<div key="D" />
];
var children = renderAndSlice(fullSet, 1, 2);
expect(children).toEqual({
'.$B': fullSet[1]
});
});
it('should allow static children to be sliced', function() {
var a = <div />;
var b = <div />;
var c = <div />;
var instance = <Partial start={1} end={2}>{a}{b}{c}</Partial>;
instance = ReactTestUtils.renderIntoDocument(instance);
var rendered = reactComponentExpect(instance)
.expectRenderedChild()
.instance();
expect(rendered.props.children).toEqual({
'.1': b
});
});
});