matchesElement.md

.matchesElement(node) => Boolean

Returns whether or not a given react element matches the shallow render tree. It will determine if the wrapper root node looks like the expected element by checking if all props of the expected element are present on the wrapper root node and equals to each other.

Arguments

1. node (ReactElement): The node whose presence you are detecting in the current instance's render tree.

Returns

Boolean: whether or not the current wrapper match the one passed in.

Example

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.handleClick = this.handleClick.bind(this);
  }
  handleClick() {
    // ...
  }
  render() {
    return (
      <button type="button" onClick={this.handleClick} className="foo bar">Hello</button>
    );
  }
}

const wrapper = shallow(<MyComponent />);
expect(wrapper.matchesElement(<div>Hello</div>)).to.equal(true);
expect(wrapper.matchesElement(<div className="foo bar">Hello</div>)).to.equal(true);

Common Gotchas

• .matchesElement() expects a ReactElement, not a selector (like many other methods). Make sure that when you are calling it you are calling it with a ReactElement or a JSX expression.
• Keep in mind that this method determines matching based on the matching of the node's children as well.