export default { test ( { assert , component } ) { assert . equal ( component . count , 0 ) ; component . arr = [ '2' ] ; assert . equal ( component . count , 1 ) ; component . arr = [ '1' , '2' ] ; assert . equal ( component . count , 2 ) ; component . arr = [ '2' , '1' ] ; assert . equal ( component . count , 2 ) ; component . arr = [ ] ; assert . equal ( component . count , 0 ) ; } } ;