#lang racket (require rackunit rackunit/text-ui "1.rkt" "1b.rkt") (add (make-basic-customer 'mf "matthias" "brookstone")) (add (make-basic-customer 'rf "robby" "beverly hills park")) (add (make-basic-customer 'fl "matthew" "pepper clouds town")) (add (make-basic-customer 'sk "shriram" "i city")) (run-tests (test-suite "manager" (test-equal? "id lookup" "matthias" (name 'mf)) (test-equal? "count" 4 count) (test-true "active?" (active? 'mf)) (test-false "active? 2" (active? 'kk)) (test-true "set name" (void? (set-name 'mf "matt")))))