How can I get component contains with shallow?
0
I'm trying to use Enzyme and shallow to check component contains. for example in this sample test I have this error :
My component code :
import React, { Component } from 'react';
class Home extends Component {
render() {
return(
<div>
<h1>Home</h1>
</div>
)
}
}
export default Home;My test code :
import React from 'react';
import { render } from 'react-dom';
import Home from '../Home';
import { shallow } from 'enzyme';
test('checking title in component', function() {
const wrapper = shallow(<Home />);
const title = <h1>Home</h1>;
expect(wrapper.contains(title)).to.equal(true);
});Error :
FAIL src/__tests__/Home.test.js
× checking title in component (15ms)
● checking title in component
TypeError: Cannot read property 'equal' of undefined
7 | const wrapper = shallow(<Home />);
8 | const title = <h1>Home</h1>;
> 9 | expect(wrapper.contains(title).to.equal(true));
| ^
10 | });So, how can I check the contains ? It's the main tutorial of CRA package ...
Consider it, I have set the enzyme react-adapter-16
reactjs tdd jestjs enzyme
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
asked Nov 17 '18 at 5:32
irbglsirbgls
83
add a comment |
0
I'm trying to use Enzyme and shallow to check component contains. for example in this sample test I have this error :
My component code :
import React, { Component } from 'react';
class Home extends Component {
render() {
return(
<div>
<h1>Home</h1>
</div>
)
}
}
export default Home;My test code :
import React from 'react';
import { render } from 'react-dom';
import Home from '../Home';
import { shallow } from 'enzyme';
test('checking title in component', function() {
const wrapper = shallow(<Home />);
const title = <h1>Home</h1>;
expect(wrapper.contains(title)).to.equal(true);
});Error :
FAIL src/__tests__/Home.test.js
× checking title in component (15ms)
● checking title in component
TypeError: Cannot read property 'equal' of undefined
7 | const wrapper = shallow(<Home />);
8 | const title = <h1>Home</h1>;
> 9 | expect(wrapper.contains(title).to.equal(true));
| ^
10 | });So, how can I check the contains ? It's the main tutorial of CRA package ...
Consider it, I have set the enzyme react-adapter-16
reactjs tdd jestjs enzyme
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
asked Nov 17 '18 at 5:32
irbglsirbgls
83
3
.toEqual()instead ofto.equal
– Boy With Silver Wings
Nov 17 '18 at 5:48
1
I think you didn't save the latest test file and run the test. Because the error shows the wrong code with your original code you have added likeexpect(wrapper.contains(title).to.equal(true)). But the bracket should be close beforetolike in your original codeexpect(wrapper.contains(title)).to.equal(true)
– kumar k
Nov 17 '18 at 6:27
add a comment |
0
0
0
I'm trying to use Enzyme and shallow to check component contains. for example in this sample test I have this error :
My component code :
import React, { Component } from 'react';
class Home extends Component {
render() {
return(
<div>
<h1>Home</h1>
</div>
)
}
}
export default Home;My test code :
import React from 'react';
import { render } from 'react-dom';
import Home from '../Home';
import { shallow } from 'enzyme';
test('checking title in component', function() {
const wrapper = shallow(<Home />);
const title = <h1>Home</h1>;
expect(wrapper.contains(title)).to.equal(true);
});Error :
FAIL src/__tests__/Home.test.js
× checking title in component (15ms)
● checking title in component
TypeError: Cannot read property 'equal' of undefined
7 | const wrapper = shallow(<Home />);
8 | const title = <h1>Home</h1>;
> 9 | expect(wrapper.contains(title).to.equal(true));
| ^
10 | });So, how can I check the contains ? It's the main tutorial of CRA package ...
Consider it, I have set the enzyme react-adapter-16
reactjs tdd jestjs enzyme
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
asked Nov 17 '18 at 5:32
irbglsirbgls
83
I'm trying to use Enzyme and shallow to check component contains. for example in this sample test I have this error :
My component code :
import React, { Component } from 'react';
class Home extends Component {
render() {
return(
<div>
<h1>Home</h1>
</div>
)
}
}
export default Home;My test code :
import React from 'react';
import { render } from 'react-dom';
import Home from '../Home';
import { shallow } from 'enzyme';
test('checking title in component', function() {
const wrapper = shallow(<Home />);
const title = <h1>Home</h1>;
expect(wrapper.contains(title)).to.equal(true);
});Error :
FAIL src/__tests__/Home.test.js
× checking title in component (15ms)
● checking title in component
TypeError: Cannot read property 'equal' of undefined
7 | const wrapper = shallow(<Home />);
8 | const title = <h1>Home</h1>;
> 9 | expect(wrapper.contains(title).to.equal(true));
| ^
10 | });So, how can I check the contains ? It's the main tutorial of CRA package ...
Consider it, I have set the enzyme react-adapter-16
import React, { Component } from 'react';
class Home extends Component {
render() {
return(
<div>
<h1>Home</h1>
</div>
)
}
}
export default Home;import React, { Component } from 'react';
class Home extends Component {
render() {
return(
<div>
<h1>Home</h1>
</div>
)
}
}
export default Home;import React from 'react';
import { render } from 'react-dom';
import Home from '../Home';
import { shallow } from 'enzyme';
test('checking title in component', function() {
const wrapper = shallow(<Home />);
const title = <h1>Home</h1>;
expect(wrapper.contains(title)).to.equal(true);
});import React from 'react';
import { render } from 'react-dom';
import Home from '../Home';
import { shallow } from 'enzyme';
test('checking title in component', function() {
const wrapper = shallow(<Home />);
const title = <h1>Home</h1>;
expect(wrapper.contains(title)).to.equal(true);
}); FAIL src/__tests__/Home.test.js
× checking title in component (15ms)
● checking title in component
TypeError: Cannot read property 'equal' of undefined
7 | const wrapper = shallow(<Home />);
8 | const title = <h1>Home</h1>;
> 9 | expect(wrapper.contains(title).to.equal(true));
| ^
10 | }); FAIL src/__tests__/Home.test.js
× checking title in component (15ms)
● checking title in component
TypeError: Cannot read property 'equal' of undefined
7 | const wrapper = shallow(<Home />);
8 | const title = <h1>Home</h1>;
> 9 | expect(wrapper.contains(title).to.equal(true));
| ^
10 | });reactjs tdd jestjs enzyme
reactjs tdd jestjs enzyme
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
asked Nov 17 '18 at 5:32
irbglsirbgls
83
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
asked Nov 17 '18 at 5:32
irbglsirbgls
83
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
edited Nov 17 '18 at 8:42
skyboyer
3,44111128
3,44111128
asked Nov 17 '18 at 5:32
irbglsirbgls
83
asked Nov 17 '18 at 5:32
irbglsirbgls
83
asked Nov 17 '18 at 5:32
irbglsirbgls
83
83
3
.toEqual()instead ofto.equal
– Boy With Silver Wings
Nov 17 '18 at 5:48
1
I think you didn't save the latest test file and run the test. Because the error shows the wrong code with your original code you have added likeexpect(wrapper.contains(title).to.equal(true)). But the bracket should be close beforetolike in your original codeexpect(wrapper.contains(title)).to.equal(true)
– kumar k
Nov 17 '18 at 6:27
add a comment |
3
.toEqual()instead ofto.equal
– Boy With Silver Wings
Nov 17 '18 at 5:48
1
I think you didn't save the latest test file and run the test. Because the error shows the wrong code with your original code you have added likeexpect(wrapper.contains(title).to.equal(true)). But the bracket should be close beforetolike in your original codeexpect(wrapper.contains(title)).to.equal(true)
– kumar k
Nov 17 '18 at 6:27
3
3
.toEqual() instead of to.equal– Boy With Silver Wings
Nov 17 '18 at 5:48
.toEqual() instead of to.equal– Boy With Silver Wings
Nov 17 '18 at 5:48
1
1
I think you didn't save the latest test file and run the test. Because the error shows the wrong code with your original code you have added like
expect(wrapper.contains(title).to.equal(true)). But the bracket should be close before to like in your original code expect(wrapper.contains(title)).to.equal(true)– kumar k
Nov 17 '18 at 6:27
I think you didn't save the latest test file and run the test. Because the error shows the wrong code with your original code you have added like
expect(wrapper.contains(title).to.equal(true)). But the bracket should be close before to like in your original code expect(wrapper.contains(title)).to.equal(true)– kumar k
Nov 17 '18 at 6:27
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53348543%2fhow-can-i-get-component-contains-with-shallow%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53348543%2fhow-can-i-get-component-contains-with-shallow%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
3
.toEqual()instead ofto.equal– Boy With Silver Wings
Nov 17 '18 at 5:48
1
I think you didn't save the latest test file and run the test. Because the error shows the wrong code with your original code you have added like
expect(wrapper.contains(title).to.equal(true)). But the bracket should be close beforetolike in your original codeexpect(wrapper.contains(title)).to.equal(true)– kumar k
Nov 17 '18 at 6:27