.containsAnyMatchingElements(nodes) => Boolean

Returns whether or not one of the given react elements is matching on element in the render tree. It will determine if an element in the wrapper looks like one of the expected element by checking if all props of the expected element are present on the wrappers element and equals to each other.

Arguments

  1. nodes (Array<ReactElement>): The array of nodes whose presence you are detecting in the current instance's render tree.

Returns

Boolean: whether or not the current wrapper has a node anywhere in its render tree that looks like one of the array passed in.

Example

const style = { fontSize: 13 };
const wrapper = mount((
  <div>
    <span className="foo">Hello</span>
    <div style={style}>Goodbye</div>
    <span>Again</span>
  </div>
));

expect(wrapper.containsAnyMatchingElements([
  <span>Bonjour</span>,
  <div>Goodbye</div>,
])).to.equal(true);

Common Gotchas

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