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Showing content from https://enzymejs.github.io/enzyme/docs/api/ShallowWrapper/name.html below:

name() · Enzyme

Returns the name of the current node of this wrapper. If it's a composite component, this will be the name of the top-most rendered component. If it's a native DOM node, it will be a string of the tag name. If it's null, it will be null.

The order of precedence on returning the name is: type.displayName -> type.name -> type.

Note: can only be called on a wrapper of a single node.

String|null: The name of the current node

const wrapper = shallow(<div />);
expect(wrapper.name()).to.equal('div');

function SomeWrappingComponent() {
  return <Foo />;
}
const wrapper = shallow(<SomeWrappingComponent />);
expect(wrapper.name()).to.equal('Foo');

Foo.displayName = 'A cool custom name';
function SomeWrappingComponent() {
  return <Foo />;
}
const wrapper = shallow(<SomeWrappingComponent />);
expect(wrapper.name()).to.equal('A cool custom name');

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