Chai assert

For more information or to download plugins, view the documentation.

The assert style is very similar to node. Of the three style options, assert is the only one that is not chainable. Check out the Style Guide for a comparison. Throw a failure. Asserts that object is truthy.

Chai assert

Cypress bundles the popular Chai assertion library, as well as helpful extensions for Sinon and jQuery , bringing you dozens of powerful assertions for free. If you're looking to understand how to use these assertions please read about assertions in our Introduction to Cypress guide. Aliases listed can be used interchangeably with their original chainer. You can see the entire list of available BDD Chai assertions here. These getters are also available for BDD assertions. They don't actually do anything, but they enable you to write clear, english sentences. You will commonly use these chainers after using DOM commands like: cy. These chainers are used on assertions with cy. Because we are using chai , that means you can extend it however you'd like. Cypress will "just work" with new assertions added to chai. You can:.

Asserts that object has a length property with the expected value.

The assert style is very similar to node. Of the three style options, assert is the only one that is not chainable. Check out the Style Guide for a comparison. Throw a failure. Asserts non-strict inequality!

For more information or to download plugins, view the documentation. Chai is an assertion library , similar to Node's built-in assert. It makes testing much easier by giving you lots of assertions you can run against your code. To install it, type:. You can also use it within the browser; install via npm and use the chai.

Chai assert

This is an addon plugin for the Chai Assertion Library. Install via npm. Chai HTTP provides an interface for live integration testing via superagent. To do this, you must first construct a request to an application or url.

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Of the three style options, assert is the only one that is not chainable. Asserts that value is not a string. Branches Tags. Asserts that object has all and only all of the keys provided. Asserts that function will throw an error that is an instance of constructor , or alternately that it will throw an error with message matching regexp. Latest commit History 1, Commits. Asserts that value is true. Notifications Fork Star 8k. Asserts that the target contains values. Asserts that function will not throw an error that is an instance of constructor , or alternately that it will not throw an error with message matching regexp.

The assert style is very similar to node.

If errorLike is an Error instance, asserts that the error thrown is the same instance as errorLike. Asserts that value is a function. Register the chai testing style globally. Asserts that set1 and set2 have the same members. Asserts that value is a boolean. Asserts that object is frozen cannot have new properties added to it and its existing properties cannot be modified. Compares two values using operator. Usage with Mocha. Asserts that actual is deeply equal to expected. If errorLike is an Error instance, asserts that the error thrown is not the same instance as errorLike. Asserts that object is not extensible. Asserts that value is not false. Assert The assert style is very similar to node.