blocks|key|1423011|text|您引用的是connect返回的HOC，而不是您要测试的组件。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1423012|您应该使用enzyme的dive函数，该函数将渲染子组件并将其作为包装器返回。|1423013|const+shallowComponent+=+shallow(<Test+items={[]}/>,+{context}).dive();|1423014|如果您有多个需要深入研究的组件，则可以多次使用它。它也比使用mount更好，因为我们仍然是在隔离中测试。|1423015|entityMap|0|LINK|mutability|MUTABLE|url|http://airbnb.io/enzyme/docs/api/ShallowWrapper/dive.html^0|5|7|0|C|4|0|0|0|1Z|0|U|5|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|H|3|I|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|L|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S]]]]

You are referencing the HOC that <code>connect</code> is returning and not the component that you want to test.

You should use enzyme's <a href="http://airbnb.io/enzyme/docs/api/ShallowWrapper/dive.html" rel="nofollow noreferrer">dive</a> function which will render the child component and return it as a wrapper.

<code>const shallowComponent = shallow(&lt;Test items={[]}/&gt;, {context}).dive();</code>

You can use it multiple times if you have multiple components that you need to dive through to get to. It's better than using <code>mount</code> as well because we are still testing in isolation.

blocks|key|1423150|text|您应该导出未连接的组件并单独测试它(请注意第一个export)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1423151|export+class+Test+extends+React.Component+{

}
...
export+default+connect(
++mapStateToProps
)(Test)|code-block|syntax|javascript|1423152|在测试中，您应该像这样测试未连接组件的呈现(请注意{+Test+}周围的花括号)：|1423153|import+React+from+'react';
import+{+shallow+}+from+'enzyme';
import+toJson+from+'enzyme-to-json';
import+{+Test+}+from+'./Test';

describe('...',+()+=>+{
++it('...',+()+=>+{
++++const+wrapper+=+shallow(<Test+/>)
++++expect(toJson(wrapper)).toMatchSnapshot();
++})
})|1423154|希望这能有所帮助。|1423155|特定于您所描述的情况的模式组件应为：|1423156|import+React+from+'react';
import+{+connect+}+from+'react-redux';

export+class+Test+extends+React.Component+{
++constructor(props)+{
++++super(props);
++}
++render()+{
++++return(
++++++<div+className="here"/>
++++)
++}
}
const+mapStateToProps+=+state+=>+{
++return+{
++++barData:+state.app.bar
++}
}

export+default+connect(
++mapStateToProps
)(Test)|1423157|测试规范应该是：|1423158|import+React+from+'react';
import+{+shallow+}+from+'enzyme';
import+toJson+from+'enzyme-to-json';
import+{+Test+}+from+'Test';

describe('Test+component',+()+=>+{
++it('renders',+()+=>+{
++++const+wrapper+=+shallow(<Test+/>);
++++expect(toJson(wrapper)).toMatchSnapshot();
++});
});|1423159|它会生成以下快照：|1423160|exports[`Test+component+renders+1`]+=+`
<div
++className="here"
/>
`;|1423161|entityMap^0|O|6|0|0|P|8|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1D|8|@]|D|@]|E|$]]|$1|S|3|T|5|H|7|1E|8|@]|D|@]|E|$I|J]]|$1|U|3|V|5|6|7|1F|8|@]|D|@]|E|$]]|$1|W|3|X|5|H|7|1G|8|@]|D|@]|E|$I|J]]|$1|Y|3|Z|5|6|7|1H|8|@]|D|@]|E|$]]|$1|10|3|11|5|H|7|1I|8|@]|D|@]|E|$I|J]]|$1|12|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]]|13|$]]

You should export the unconnected component and test it separately (notice the first <code>export</code>):

<pre><code>export class Test extends React.Component {

}
...
export default connect(
 mapStateToProps
)(Test)
</code></pre>

While in your test you should test the rendering of the unconnected component like so (notice the curly braces around <code>{ Test }</code>):

<pre><code>import React from 'react';
import { shallow } from 'enzyme';
import toJson from 'enzyme-to-json';
import { Test } from './Test';

describe('...', () =&gt; {
 it('...', () =&gt; {
 const wrapper = shallow(&lt;Test /&gt;)
 expect(toJson(wrapper)).toMatchSnapshot();
 })
})
</code></pre>

Hope this helps.

Mode specifically for your described case the component should be:

<pre><code>import React from 'react';
import { connect } from 'react-redux';

export class Test extends React.Component {
 constructor(props) {
 super(props);
 }
 render() {
 return(
 &lt;div className="here"/&gt;
 )
 }
}
const mapStateToProps = state =&gt; {
 return {
 barData: state.app.bar
 }
}

export default connect(
 mapStateToProps
)(Test)
</code></pre>

The test spec should be:

<pre><code>import React from 'react';
import { shallow } from 'enzyme';
import toJson from 'enzyme-to-json';
import { Test } from 'Test';

describe('Test component', () =&gt; {
 it('renders', () =&gt; {
 const wrapper = shallow(&lt;Test /&gt;);
 expect(toJson(wrapper)).toMatchSnapshot();
 });
});
</code></pre>

Which generates the following snapshot:

<pre><code>exports[`Test component renders 1`] = `
&lt;div
 className="here"
/&gt;
`;
</code></pre>

blocks|key|1323671|text|默认情况下，将导出连接的构件。您可以做的是导入未连接到redux的组件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1323672|import+{+Test+}+from+'./Test';|code-block|syntax|javascript|1323673|那么你的测试应该可以工作了。|1323674|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You are exporting the connected component by default. What you can do is import the component that is not connected to redux.

<pre><code>import { Test } from './Test';
</code></pre>

Then your test should work.

Enzyme shallow rendering behaves in an unexpected way if I am rendering a redux component with a mocked store.

I have a simple test that looks like this :

<pre><code> import React from 'react';
 import { shallow } from 'enzyme';
 import { createMockStore } from 'redux-test-utils';

 import Test from './Test'

 it('should render ', () =&gt; {
 const testState = {
 app: {
 bar: ['a', 'b', 'c']
 }
 };

 const store = createMockStore(testState)
 const context = {
 store,
 };
 const shallowComponent = shallow(&lt;Test items={[]}/&gt;, {context});

 console.log(shallowComponent.debug());

 }
</code></pre>

The Test component looks like :

<pre><code>class Test extends React.Component {
 constructor(props) {
 super(props);
 }
 render() {
 return(
 &lt;div className="here"/&gt;
 )
 }
}
export default Test;
</code></pre>

Which as expected prints out this :

<pre><code> &lt;div className="here" /&gt;
</code></pre>

However if my component is a redux component :

<pre><code>class Test extends React.Component {
 constructor(props) {
 super(props);
 }
 render() {
 return(
 &lt;div className="here"/&gt;
 )
 }
}
const mapStateToProps = state =&gt; {
 return {
 barData: state.app.bar
 }
}

export default connect(
 mapStateToProps
)(Test)
</code></pre>

Then what I get in the console is this :

<pre><code>&lt;BarSeriesListTest items={{...}} barData={{...}} dispatch={[Function]} /&gt;
</code></pre>

Why is there this difference? How do I test that my component has <code>&lt;div className="here"/&gt;</code> embedded in it in my redux version of the component?

enzyme shallow rendering just one node in redux components

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如果我使用mocked store渲染redux组件，酶浅渲染会以一种意想不到的方式出现。我有一个简单的测试，看起来像这样：  import React from 'react';  import { shallow } from 'enzyme';  import { createMockStore } from '...

问redux组件中只有一个节点的酶浅渲染
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问redux组件中只有一个节点的酶浅渲染EN