/** * Internal dependencies */ import isPackageInstalled from '../is-package-installed'; describe( 'isPackageInstalled', () => { test( 'returns false when package not installed', () => { const result = isPackageInstalled( 'nonexistent-package-name' ); expect( result ).toBe( false ); } ); test( 'returns true when package installed', () => { const result = isPackageInstalled( 'eslint' ); expect( result ).toBe( true ); } ); } );