ssd3 practical quiz 7

import java.io.*; /** * Tests the class <code>EmployeeArray</code> * * @author iCarnegie * @version 1.0.0 * @see EmployeeArray * @see Employee */ public class TestEmployeeArray { /* Standard output stream */ private static PrintWriter stdOut = new PrintWriter(System.out, true); /* Standard error stream */ private static PrintWriter stdErr = new PrintWriter(System.err, true); /* Variables that contains the test objects */ private Employee first; private Employee second; private Employee third; private Employee fourth; private Employee[] empty; private Employee[] array; private int nonEmployeeId; /** * Tests methods of class {@link EmployeeArray} * * @param args not used */ public static void main (String args[]) { stdOut.println(""); stdOut.println("Testing class EmployeeArray..."); TestEmployeeArray tester = new TestEmployeeArray(); if (tester.testMakeArray() & tester.testCopyArray() & tester.testGetEmployee() & tester.testCountHigherSalaries() & tester.testSumSalaries() & tester.testGetHighestSalary() & tester.testIncreaseAll() & tester.testDisplayAll()) { stdOut.println("All tests passed"); } } /** * Displays a message in the standard error stream if the value specified * by parameter <code>condition<code> is <code>false</code>. * * @param message the error message. * @param condition the test condition. * @return the value of <code>condition</code> */ public static boolean assertTrue(String message, boolean condition) { if (!condition) { stdErr.print("** Test failure "); stdErr.println(message); return false; } else { return true; } } /** Assign the initial value to the test variables */ private void setUp() { first = new Employee(101, "First", 1000.0); second = new Employee(102, "Second", 100.0); third = new Employee(103, "Third", 1000.0); fourth = new Employee(104, "Fourth", 500.0); nonEmployeeId = 106; empty = new Employee[0]; array = new Employee[4]; array[0] = first; array[1] = second; array[2] = third; array[3] = fourth; } /** * Tests the method <code>makeArray</code>. * * @return <code>true</code> if all test passed; otherwise returns * <code>false</code>. */ public boolean testMakeArray() { setUp(); boolean test = true; Employee[] result = EmployeeArray.makeArray(first, second, third); test = test && assertTrue("1, testing method makeArray", result instanceof Employee[]); test = test && assertTrue("2, testing method makeArray", result.length == 3); test = test && assertTrue("3, testing method makeArray", result[0].equals(first)); test = test && assertTrue("4, testing method makeArray", result[1].equals(second)); test = test && assertTrue("5, testing method makeArray", result[2].equals(third)); return test; } /** * Tests the method <code>copyArray</code>. * * @return <code>true</code> if all test passed; otherwise returns * <code>false</code>. */ public boolean testCopyArray() { setUp(); boolean test = true; Employee[] resultEmpty = EmployeeArray.copyArray(empty); test = test && assertTrue("1, testing method copyArray", resultEmpty instanceof Employee[]); test = test && assertTrue("2, testing method copyArray", resultEmpty.length == 0); Employee resultArray[] = EmployeeArray.copyArray(array); test = test && assertTrue("3, testing method copyArray", resultArray instanceof Employee[]); test = test && assertTrue("4, testing method copyArray", resultArray.length == 4); test = test && assertTrue("5, testing method copyArray", resultArray[0] == first); test = test && assertTrue("6, testing method copyArray", resultArray[1] == second); test = test && assertTrue("7, testing method copyArray", resultArray[2] == third); test = test && assertTrue("8, testing method copyArray", resultArray[3] == fourth); return test; } /** * Tests the method <code>getEmployee</code>. * * @return <code>true</code> if all test passed; otherwise returns * <code>false</code>. */ public boolean testGetEmployee() { setUp(); boolean test = true; test = test && assertTrue("1, testing method getEmployee", EmployeeArray.getEmployee(empty, nonEmployeeId) == null); Employee employee; employee = EmployeeArray.getEmployee(array, first.getId()); test = test && assertTrue("2, testing method getEmployee", employee !=null && employee.equals(first)); employee = EmployeeArray.getEmployee(array, second.getId()); test = test && assertTrue("3, testing method getEmployee", employee !=null && employee.equals(second)); employee = EmployeeArray.getEmployee(array, third.getId()); test = test && assertTrue("4, testing method getEmployee", employee !=null && employee.equals(third)); employee = EmployeeArray.getEmployee(array, fourth.getId()); test = test && assertTrue("5, testing method getEmployee", employee !=null && employee.equals(fourth)); test = test && assertTrue("6, testing method getEmployee", EmployeeArray.getEmployee(array, nonEmployeeId) == null); return test; } /** * Tests the method <code>countHigherSalaries</code>. * * @return <code>true</code> if all test passed; otherwise returns * <code>false</code>. */ public boolean testCountHigherSalaries() { setUp(); boolean test = true; test = test && assertTrue("1, testing method countHigherSalaries", EmployeeArray.countHigherSalaries(empty, 0.0) == 0); test = test && assertTrue("2, testing method countHigherSalaries", EmployeeArray.countHigherSalaries(array, 0.0) == 4); test = test && assertTrue("3, testing method countHigherSalaries", EmployeeArray.countHigherSalaries(array, 100.0) == 3); test = test && assertTrue("4, testing method countHigherSalaries", EmployeeArray.countHigherSalaries(array, 100000.0) == 0); return test; } /** * Tests the method <code>sumSalaries</code> * * @return <code>true</code> if all test passed; otherwise returns * <code>false</code>. */ public boolean testSumSalaries() { setUp(); boolean test = true; test = test && assertTrue("1, testing method sumSalaries", EmployeeArray.sumSalaries(empty) == 0.0); test = test && assertTrue("2, testing method sumSalaries", EmployeeArray.sumSalaries(array) == first.getSalary() + second.getSalary() + third.getSalary() + fourth.getSalary()); return test; } /** * Tests the method <code>getHighestSalary</code> * * @return <code>true</code> if test passed; otherwise returns * <code>false</code>. */ public boolean testGetHighestSalary() { setUp(); boolean test = true; test = test && assertTrue( "1, testing method getHighestSalary", EmployeeArray.getHighestSalary(array) == 1000); Employee[] arrayTwo = new Employee[5]; arrayTwo[0] = new Employee(101, "First", 2000.0); arrayTwo[1] = new Employee(102, "Second", 100.0); arrayTwo[2] = new Employee(103, "Third", 1000.0); arrayTwo[3] = new Employee(104, "Fourth", 500.0); arrayTwo[4] = new Employee(105, "Fifth", 500.0); test = test && assertTrue( "2, testing method getHighestSalary", EmployeeArray.getHighestSalary(arrayTwo) == 2000); return test; } /** * Tests the method <code>increaseAll</code>. * * @return <code>true</code> if all test passed; otherwise returns * <code>false</code>. */ public boolean testIncreaseAll() { setUp(); boolean test = true; double amount = 100.0; double salaryFirst = first.getSalary(); double salarySecond = second.getSalary(); double salaryThird = thir