.containsMatchingElement(patternNode) => Boolean

Returns whether or not a patternNode react element matches any element in the render tree.

  • the matches can happen anywhere in the wrapper's contents
  • the wrapper can contain more than one node; all are searched

Otherwise, the match follows the same rules as matchesElement.


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


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


const wrapper = shallow((
    <div data-foo="foo" data-bar="bar">Hello</div>

expect(wrapper.containsMatchingElement(<div data-foo="foo" data-bar="bar">Hello</div>)).to.equal(true);
expect(wrapper.containsMatchingElement(<div data-foo="foo">Hello</div>)).to.equal(true);

expect(wrapper.containsMatchingElement(<div data-foo="foo" data-bar="bar" data-baz="baz">Hello</div>)).to.equal(false);
expect(wrapper.containsMatchingElement(<div data-foo="foo" data-bar="Hello">Hello</div>)).to.equal(false);
expect(wrapper.containsMatchingElement(<div data-foo="foo" data-bar="bar" />)).to.equal(false);

Common Gotchas

  • .containsMatchingElement() 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 equality based on the equality of the node's children as well.

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Licensed under the MIT License.