contains
Get the DOM element containing the text. DOM elements can contain more than the desired text and still match. Additionally, Cypress prefers some DOM elements over the deepest element found.
Syntax​
.contains(content)
.contains(content, options)
.contains(selector, content)
.contains(selector, content, options)
// ---or---
cy.contains(content)
cy.contains(content, options)
cy.contains(selector, content)
cy.contains(selector, content, options)
Usage​
Correct Usage
cy.get('.nav').contains('About') // Yield el in .nav containing 'About'
cy.contains('Hello') // Yield first el in document containing 'Hello'
Incorrect Usage
cy.title().contains('My App') // Errors, 'title' does not yield DOM element
cy.getCookies().contains('_key') // Errors, 'getCookies' does not yield DOM element
Arguments​
content (String, Number, RegExp)
Get the DOM element containing the content.
selector (String selector)
Specify a selector to filter DOM elements containing the text. Cypress will ignore its default preference order for the specified selector. Using a selector allows you to return more shallow elements (higher in the tree) that contain the specific text.
options (Object)
Pass in an options object to change the default behavior of .contains()
.
Option | Default | Description |
---|---|---|
matchCase | true | Check case sensitivity |
log | true | Displays the command in the Command log |
timeout | defaultCommandTimeout | Time to wait for .contains() to resolve before timing out |
includeShadowDom | includeShadowDom config option value | Whether to traverse shadow DOM boundaries and include elements within the shadow DOM in the yielded results. |
Yields ​
.contains()
yields the new DOM element it found..contains()
is a query, and it is safe to chain further commands.
Examples​
Content​
Find the first element containing some text​
<ul>
<li>apples</li>
<li>oranges</li>
<li>bananas</li>
</ul>
// yields <li>apples</li>
cy.contains('apples')
Find the input[type='submit']
by value​
Get the form element and search in its descendants for the content "submit the form!"
<div id="main">
<form>
<div>
<label>name</label>
<input name="name" />
</div>
<div>
<label>age</label>
<input name="age" />
</div>
<input type="submit" value="submit the form!" />
</form>
</div>
// yields input[type='submit'] element then clicks it
cy.get('form').contains('submit the form!').click()
Number​
Find the first element containing a number​
Even though the <span>
is the deepest element that contains a "4", Cypress
automatically yields <button>
elements over spans because of its
preferred element order.
<button class="btn btn-primary" type="button">
Messages <span class="badge">4</span>
</button>
// yields <button>
cy.contains(4)
Regular Expression​
Find the first element with text matching the regular expression​
<ul>
<li>apples</li>
<li>oranges</li>
<li>bananas</li>
</ul>
// yields <li>bananas</li>
cy.contains(/^b\w+/)
Selector​
Specify a selector to return a specific element​
Technically the <html>
, <body>
, <ul>
, and first <li>
in the example
below all contain "apples".
Normally Cypress would return the first <li>
since that is the deepest
element that contains "apples".
To override the element that is yielded we can pass 'ul' as the selector.
<html>
<body>
<ul>
<li>apples</li>
<li>oranges</li>
<li>bananas</li>
</ul>
</body>
</html>
// yields <ul>...</ul>
cy.contains('ul', 'apples')
Keep the form as the subject​
Here's an example that uses the selector to ensure that the <form>
remains the
subject for
future chaining.
<form>
<div>
<label>name</label>
<input name="name" />
</div>
<button type="submit">Proceed</button>
</form>
cy.get('form') // yields <form>...</form>
.contains('form', 'Proceed') // yields <form>...</form>
.submit() // yields <form>...</form>
Without the explicit selector the subject would change to be the <button>
.
Using the explicit selector ensures that chained commands will have the <form>
as the subject.
Case Sensitivity​
Here's an example using the matchCase
option to ignore case sensitivity.
<div>Capital Sentence</div>
cy.get('div').contains('capital sentence') // fail
cy.get('div').contains('capital sentence', { matchCase: false }) // pass
Notes​
Scopes​
.contains()
acts differently whether it's starting a series of commands or
being chained off an existing series.
When starting a series of commands:​
This queries the entire document
for the content.
cy.contains('Log In')
When chained to an existing series of commands​
This will query inside of the <#checkout-container>
element.
cy.get('#checkout-container').contains('Buy Now')
Be wary of chaining multiple contains​
Let's imagine a scenario where you click a button to delete a user and a dialog appears asking you to confirm this deletion.
// This doesn't work as intended
cy.contains('Delete User').click().contains('Yes, Delete!').click()
Because the second .contains()
is chained off of a command that yielded the
<button>
, Cypress will look inside of the <button>
for the new content.
In other words, Cypress will look inside of the <button>
containing "Delete
User" for the content: "Yes, Delete!", which is not what we intended.
What you want to do is call cy
again, which automatically creates a new chain
scoped to the document
.
cy.contains('Delete User').click()
cy.contains('Yes, Delete!').click()
Leading, trailing, duplicate whitespaces aren't ignored in <pre>
tag​
Unlike other tags, <pre>
doesn't ignore leading, trailing, or duplicate
whitespaces as shown below:
<!--Code for test-->
<h2>Other tags</h2>
<p>Hello, World !</p>
<h2>Pre tag</h2>
<pre> Hello, World !</pre>
Rendered result:
To reflect this behavior, Cypress also doesn't ignore them.
// test result for above code
cy.get('p').contains('Hello, World !') // pass
cy.get('p').contains(' Hello, World !') // fail
cy.get('pre').contains('Hello, World !') // fail
cy.get('pre').contains(' Hello, World !') // pass
Non-breaking space​
You can use a space character in cy.contains()
to match text in the HTML that
uses a non-breaking space entity
.
<span>Hello world</span>
// finds the span element
cy.contains('Hello world')
Tip: read about assertions against a text with non-breaking space entities in How do I get an element's text contents?
Single Element​
Only the first matched element will be returned​
<ul id="header">
<li>Welcome, Jane Lane</li>
</ul>
<div id="main">
<span>These users have 10 connections with Jane Lane</span>
<ul>
<li>Jamal</li>
<li>Patricia</li>
</ul>
</div>
The below example will return the <li>
in the #header
since that is the
first element that contains the text "Jane Lane".
// yields #header li
cy.contains('Jane Lane')
If you wanted to select the <span>
instead, you could narrow the elements
yielded before the .contains()
.
// yields <span>
cy.get('#main').contains('Jane Lane')
Default <input type="submit">
labels​
When the value
attribute is omitted from an <input type="submit">
, the
default label is used and can be locale-dependent.
More info at MDN.
When this happens, the value
is an empty string, and there is no programmatic
way for Cypress to filter elements by the label displayed by the user agent.
This can cause unexpected failures when using cy.contains()
with submit
buttons.
The solution in this case is to:
// assert the empty string
cy.get('input').should('have.value', '')
// ---or---
// if possible, set the `value` attribute
<input type=submit value="Submit" />
Preferences​
Element preference order​
.contains()
defaults to preferring elements higher in the tree when they are:
input[type='submit']
button
a
label
Cypress will ignore this element preference order if you pass a selector
argument to .contains()
.
Favor of <button>
over other deeper elements​
Even though the <span>
is the deepest element that contains "Search", Cypress
yields <button>
elements over spans.
<form>
<button>
<i class="fa fa-search"></i>
<span>Search</span>
</button>
</form>
// yields <button>
cy.contains('Search').children('i').should('have.class', 'fa-search')
Favor of <a>
over other deeper elements​
Even though the <span>
is the deepest element that contains "Sign Out",
Cypress yields anchor elements over spans.
<nav>
<a href="/users">
<span>Users</span>
</a>
<a href="/signout">
<span>Sign Out</span>
</a>
</nav>
// yields <a>
cy.get('nav').contains('Sign Out').should('have.attr', 'href', '/signout')
Favor of <label>
over other deeper elements​
Even though the <span>
is the deepest element that contains "Age", Cypress
yields <label>
elements over <span>
.
<form>
<label>
<span>Name:</span>
<input name="name" />
</label>
<label>
<span>Age:</span>
<input name="age" />
</label>
</form>
// yields label
cy.contains('Age').find('input').type('29')
Rules​
Requirements ​
.contains()
can be chained off ofcy
or off a command that yields DOM element(s).
Assertions ​
.contains()
will automatically retry until the element(s) exist in the DOM..contains()
will automatically retry until all chained assertions have passed.
Timeouts ​
.contains()
can time out waiting for the element(s) to exist in the DOM..contains()
can time out waiting for assertions you've added to pass.
Command Log​
Element contains text "New User"
cy.get('h1').contains('New User')
The commands above will display in the Command Log as:
When clicking on the contains
command within the command log, the console
outputs the following:
History​
Version | Changes |
---|---|
5.2.0 | Added includeShadowDom option. |
4.0.0 | Added support for option matchCase . |