;; The first three lines of this file were inserted by DrScheme. They record metadata
;; about the language level of this file in a form that our tools can easily process.
#reader(lib "htdp-beginner-reader.ss" "lang")((modname 16.4.1) (read-case-sensitive #t) (teachpacks ((lib "testing.ss" "teachpack" "htdp"))) (htdp-settings #8(#t constructor repeating-decimal #f #t none #f ((lib "testing.ss" "teachpack" "htdp")))))
; Worked exercise 16.4.1

; An employee has three parts: name, id, and salary.
; The name is a string, while id and salary are numbers.
(define-struct employee (name id salary))
; make-employee : string(name) number(id) number(salary) -> employee
; employee-name : employee -> string
; employee-id : employee -> number
; employee-salary : employee -> number
; employee? : object -> boolean

; earns-over-100k? : employee -> boolean
(define (earns-over-100k? emp)
  ; emp an employee
  ; (employee-name emp) a string
  ; (employee-id emp) a number
  ; (employee-salary emp) a number
  ; 100000 a fixed number
  (> (employee-salary emp) 100000)
  )

(define emp1 (make-employee "Bob" 470 36000))
(define emp2 (make-employee "Chris" 471 41000))

(check-expect (earns-over-100k? (make-employee "Phil" 27 119999)) true)
(check-expect (earns-over-100k? (make-employee "Anne" 51 100000)) false) ; borderline case
(check-expect (earns-over-100k? emp1) false)

(generate-report)