在Java中完成类的精确副本的构造函数的单元测试
我在学校的一个实验室工作，目的是通过人寿保险，并进行测试，以确保我的施工人员正常工作。我有常规的建设者，但我对第83行真正需要什么感到困惑。当我编译并提交作业时，我没有得到任何信息，除了该区域的一个粉红色突出显示。我尝试创建一个新的策略对象插入
WholeLifePolicy WholeLifePolicy2 = new WholeLifePolicy;
这不是它想要的
}
/**
* Constructor for objects of class WholeLifePolicy.
* This constructor creates an exact copy of a
* WholeLifePolicy object.
*
* @param inPolicyObject WholeLifePolicy object.
*
*/
public WholeLifePolicy(WholeLifePolicy inPolicyObject)
{
this.setPolicyNum(inPolicyObject.getPolicyNum());
**// your code here, complete the constructor**
}
我还尝试从WholeLifePolicy类初始化实例变量，但我知道这不会起作用，因为副本无论如何都会接受这些参数
我真的不知道该怎么办。我在网上搜索过，在这里，我不断获得有关克隆和暗拷贝的信息。这不是我应该做的。这只是我第一节编程课的第六周。我也联系了我的老师，但还没有得到回复
public class WholeLifePolicy
{
// instance variables
private String policyNum;
private double faceValue;
private int policyYrs;
private String beneficiary;
// your code here - code the remaining 3 instance fields
// constants
/**
* surrender rate.
*/
public static final double SURRENDER_RATE = .65;
/**
* ADMINFEE.
*/
public static final double ADMINFEE = .005;
// constructors and methods
/**
* Constructor for objects of class WholeLifePolicy.
* This is the default constructor.
*
* Default values are:
* face value = 0.0
* policy years = 0
* policy number WLP9999999
* beneficiary Unknown
*
*/
public WholeLifePolicy()
{
this.setPolicyNum("WLP9999999");
this.setFaceValue(0.0);
this.setPolicyYrs(0);
this.setBeneficiary("Unknown");
}
/**
* Constructor for objects of class WholeLifePolicy.
* A policy number will be auto-generated.
*
* @param inPolicyNum Number of the policy
* @param inFaceValue Face Value of policy.
* @param inPolicyYrs Length of policy in years.
* @param inBeneficiary name of the beneficiary
*
*/
public WholeLifePolicy(String inPolicyNum, double inFaceValue,
int inPolicyYrs, String inBeneficiary)
{
// Initialize instance variables
// Using values passed in as parameters
this.policyNum = inPolicyNum;
this.faceValue = inFaceValue;
this.policyYrs = inPolicyYrs;
this.beneficiary = inBeneficiary;
*} / *类WholeLifePolicy的对象的构造函数。 *此构造函数创建一个 *全方位的政治目标。 * *@param inPolicyObject全局策略对象。 * */ 公共全局策略（policyObject中的全局策略） { 这setPolicyNum（inPolicyObject.getPolicyNum（））； //在这里输入代码，完成构造函数
}***
/**
* Set the Policy Face Value.
*
* @param inFaceValue Face Value of policy.
*
*/
public void setFaceValue(double inFaceValue)
{
this.faceValue = inFaceValue;
}
/**
* Get the Policy Face Value.
*
* @return double Face Value of policy.
*
*/
public double getFaceValue()
{
return this.faceValue;
}
/**
* Set the Policy Years.
*
* @param inPolicyYrs Length of policy in years.
*
*/
public void setPolicyYrs(int inPolicyYrs)
{
this.policyYrs = inPolicyYrs;
}
/**
* Get the Policy Years.
*
* @return int Length of policy in years.
*
*/
public int getPolicyYrs()
{
return this.policyYrs;
}
/**
* Set the Policy Number. Use to override the default
* policy number or for copy object processing.
*
* @param inPolicyNum Policy Number.
*
*/
public void setPolicyNum(String inPolicyNum)
{
this.policyNum = inPolicyNum;
}
/**
* Get the Policy Number.
*
* @return String Policy Number.
*
*/
public String getPolicyNum()
{
// your code here, replace the following statement
return this.policyNum;
}
/**
* Set the beneficiary. Use to override the default
* beneficiary or for copy object processing.
*
* @param inBeneficiary Beneficiary to set up.
*
*/
public void setBeneficiary(String inBeneficiary)
{
this.beneficiary = inBeneficiary;
}
/**
* Get the Beneficiary.
*
* @return String Beneficiary.
*
*/
public String getBeneficiary()
{
// your code here, replace the following statement
return this.beneficiary;
}
/**
* Calculate surrender value.
* Surrender value is calculated as:
* (surrender rate * face value) *
* (years held / policy years) - amount borrowed -
* (face value * administrative fee)
*
* @param inYrsHeld Length in years policy held to date.
* @param inBorAmt Amount borrowed against policy if any.
* @return double Policy surrender value.
*
*/
public double surrenderVal(double inYrsHeld, double inBorAmt)
{
// Termination value is the surrender rate percentage of the face
// value as a proportion of the years held to policy years less any
// amount borrowed on the policy less a ADMINFEE on the
// face value.
// your code here, compute the surrender value and replace the
// following line
return (SURRENDER_RATE * faceValue) * (inYrsHeld) / (policyYrs)
- inBorAmt - (faceValue * ADMINFEE);
}
/**
* Return a string representation of the WholeLifePolicy.
*
* @return String output string.
*
* <pre>
* Produce output in the following format:
*
* Policy Information:
* Policy #: WLP1000000
* Policy Years: 20
* Face Value: 50000.0
* Beneficiary: John Doe
*
* </pre>
*/
public String toString()
{
String output = "Policy Information:\n";
output = output + "Policy #: " + this.getPolicyNum() + "\n";
// your code here, finish the output string
return output;
}
}
这是测试课程，以防万一
import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* The test class WholeLifePolicyTest.
*
* @author Tina & edited by Jeremy
* @version Fall 2015
*/
public class WholeLifePolicyTest
{
/**
* Default constructor for test class WholeLifePolicyTest.
*/
public WholeLifePolicyTest()
{
// not used
}
/**
* Sets up the test fixture.
*
* Called before every test case method.
*/
@Before
public void setUp()
{
// not used
}
/**
* Tears down the test fixture.
*
* Called after every test case method.
*/
@After
public void tearDown()
{
// not used
}
/**
* Test empty (default) constructor #1.
*/
@Test
public void testConstructor1()
{
WholeLifePolicy policy = new WholeLifePolicy();
// verify an object reference was created
assertNotNull(policy);
// verify policy number is not null
assertEquals("WLP9999999", policy.getPolicyNum());
// verify face value set to default values
assertEquals(0.0, policy.getFaceValue(), .001);
// verify policy years set to default values
assertEquals(0, policy.getPolicyYrs());
// verify beneficiary is Unknown
assertEquals("Unknown", policy.getBeneficiary());
}
/**
* Test explicit constructor #2 (policy#, face value, years, name).
*/
@Test
public void testConstructor2()
{
// we test passing in values greater than zero only
String pnum = "WLP1234567";
double value = 50000.0;
int years = 20;
String name = "Paul Young";
WholeLifePolicy policy = new WholeLifePolicy(pnum, value, years, name);
// your code here, verify the object exists and the instance
// fields contain the expected values
assertEquals("WLP1234567", policy.getPolicyNum());
assertEquals(50000.0, policy.getFaceValue(), .001);
assertEquals(20, policy.getPolicyYrs());
assertEquals("Paul Young", policy.getBeneficiary());
}
/**
* Test explicit constructor #3 (duplicate object).
*/
@Test
public void testConstructor3()
{
// we test passing in values greater than zero only
String pnum = "WLP1234567";
double value = 50000.0;
int years = 20;
String name = "Paul Young";
WholeLifePolicy policy1 = new WholeLifePolicy(pnum, value, years, name);
// your code here, verify the object exists and the instance
// fields contain the expected values
assertEquals("WLP1234567", policy1.getPolicyNum());
assertEquals(50000.0, policy1.getFaceValue(), .001);
assertEquals(20, policy1.getPolicyYrs());
assertEquals("Paul Young", policy1.getBeneficiary());
}
/**
* Test the setGetFaceValue method.
*/
@Test
public void testSetGetFaceValue()
{
// test passing in values greater than zero only
double value = 75000.0;
WholeLifePolicy policy = new WholeLifePolicy();
policy.setFaceValue(value);
assertEquals(value, policy.getFaceValue(), .0001);
}
/**
* Test the setGetPolicyYrs method.
*/
@Test
public void testSetGetPolicyYrs()
{
// your code goes here, test the set and get methods for the
// policy years methods
int years = 25;
WholeLifePolicy policy = new WholeLifePolicy();
policy.setPolicyYrs(years);
assertEquals(years, policy.getPolicyYrs());
}
/**
* Test the SetGetPolicyNum method.
*/
@Test
public void testSetGetPolicyNum()
{
// your code goes here, test the set and get methods for the
// policy number methods
String policyNumber = "WLP7654321";
WholeLifePolicy policy = new WholeLifePolicy();
policy.setPolicyNum(policyNumber);
assertEquals(policyNumber, policy.getPolicyNum());
}
/**
* Test the SetGetBeneficiary method.
*/
@Test
public void testSetGetBeneficiary()
{
// your code goes here, test the set and get methods for the
// beneficiary methods
String benefactor = "Beetlejuice! Beetlejuice!";
WholeLifePolicy policy = new WholeLifePolicy();
policy.setBeneficiary(benefactor);
assertEquals(benefactor, policy.getBeneficiary());
}
/**
* Test the surrenderVal method.
*/
@Test
public void testSurrenderVal()
{
// we test passing in values greater than zero only
String num = "WLP1234567";
double value = 50000.0;
int years = 20;
String name = "Elton John";
double yearsHeld = 15.5;
double amtBorrowed = 10000.00;
WholeLifePolicy policy = new WholeLifePolicy(num, value, years, name);
double surVal = policy.surrenderVal(yearsHeld, amtBorrowed);
// your code here, test to make sure the returned surrender value
// is what was expected
assertEquals(surVal, 14937.5, .001);
//your code here, test to make sure the returned surrender value
// is what is expected if the borrowed amount is 0
double surVal2 = policy.surrenderVal(yearsHeld, 0);
assertEquals(surVal2, 24937.5, .001);
}
/**
* Test the toString method.
*/
@Test
public void testToString()
{
String num = "WLP1234567";
double value = 50000.0;
int years = 20;
String name = "Katie Perry";
WholeLifePolicy policy = new WholeLifePolicy(num, value, years, name);
String text = policy.toString();
assertTrue(text.contains("Policy Information:"));
assertTrue(text.contains("Policy #:"));
assertTrue(text.contains(num));
// your code here, finish the testing of the toString() method
// checking for both the headings and face value, policy years
}
}
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