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西北工业大学软件与微电子学院软件测试课程实验一.docx
Lab1
1, Junit Test cases:
package junitexample;
import static org.junit.Assert.*;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Before;
import org.junit.Test;
@RunWith(Parameterized.class)
public class TriangleTest {
private static Triangle t=new Triangle();
private String param1;
private String param2;
private String param3;
private String result;
@Parameters
public static Collection data(){
return Arrays.asList(new Object[][]{
0!\n"},
0!\n"},
form a valid triangle!\n"},
triangle is too big\n"},
{"1","1","1","Equilateral"},
{"2","2","1","Isosceles"},
{"-1","3","3","At least one length is less than
{"a","1","2","Side 1 is not a number!\n"},
{"1","a","1","Side 2 is not a number!\n"},
{"1","1","a","Side 3 is not a number!\n"},
{"1a","1","1","Side 1 is not a number!\n"},
{"1","1","2","The lengths of the triangles do not
{"1000000","1000000","1000000","I feel your
{"3","4","5","Scalene"},
{"0","1","1","At least one length is less than
{"1a","1a","1a","Side 1 is not a number!\n"},
{"0.9","1.2","2","Scalene"},
{"0.1","0.1","0.1","Equilateral"},
});
}
public TriangleTest(String param1,String param2,String
param3,String result){
this.param1=param1;
this.param2=param2;
this.param3=param3;
this.result=result;
}
@Before
public void setUp() throws Exception {
}
@Test
public void testDetermineTriangleType() {
t=new Triangle(param1,param2,param3);
assertEquals(this.result,t.determineTriangleType());
}
}
经测试发现，14 个测试用例只有 5 个测试用例通过测试，发现发生此种情况的原因有：
1 在发生错误后并没有跳出函数，而是继续向下执行
如测试用例 3,4,5,6,7,11,12
2.parseInt 处理函数无法处浮点数
如测试用例 13,14
2.目标代码转换为 java 代码
package junitexample;
import java.util.Scanner;
public class Lab2 {
private int a;
private int b;
private int c;
public Lab2(int params1,int params2,int params3){
this.a=params1;
this.b=params2;
this.c=params3;
}
public String isTriangle(){
int count=1;
boolean isTri;
//System.out.println("Enter the parameters,max and count:");
//Scanner sc = new Scanner(System.in);
// count=sc.nextInt();
//max=sc.nextInt();
while(count>0){
String type;
//System.out.println("please enter parameters:");
//a=sc.nextInt();
//b=sc.nextInt();
//c=sc.nextInt();
System.out.println("side a is"+a+"side b is"+b+"side c is"+c);
if((a
if(isTri){
if((a==b)||(a==c)||(b==c)&&!((a==b)||(a==c))){
type="Isosceles";
return type;
}
if(a==b&&a==c){
type="Equilateral";
return type;
}
if((a!=b)&&(a!=c)&&(b!=c)){
type="Scalene";
return type;
type="Not a Triangle";
return type;
}
}
else{
}
break;
}
return null;
}
}
编写测试代码，发现语句覆盖，分支覆盖，路径覆盖测试语句可以相同。测试代码如
下
package junitexample;
import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
@RunWith(Parameterized.class)
public class Lab2Test {
private int a;
private int b;
private int c;
private String value;
private static Lab2 t=new Lab2(0, 0, 0);
@Before
public void setUp() throws Exception {
}
public Lab2Test(int params1,int params2,int params3,String value){
this.a=params1;
this.b=params2;
this.c=params3;
this.value=value;
}
@Test
public void testIsTriangle() {
t=new Lab2(a,b,c);
assertEquals(this.value,t.isTriangle());
}
@Parameters
public static Collection data(){
return Arrays.asList(new Object[][]{
{1,2,3,"Not a Triangle"},
{2,3,4,"Scalene"},
{2,2,2,"Equilateral"},//statement coverage
{1,2,3,"Not a Triangle"},
{2,3,4,"Scalene"},
{2,2,2,"Equilateral"},//branch coverage
{1,2,3,"Not a Triangle"},
{2,3,4,"Scalene"},
{2,2,2,"Equilateral"},//path coverage
});
}
}
共九个测试用例，经测试发现123456789中369三个测试用例中共通过124578等六个
测试用例，369三个测试用例未通过，经分析是语句判断出现问题。
画出路径图：
三个覆盖的测试用例相同，所以经历路径相同，为
3首先测试代码：
package junitexample;
import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
@RunWith(Parameterized.class)
public class FormulasTest {
public static Formulas f=new Formulas(0,0,0);
public FormulasTest(int a,int b,int c,int max,int min,int value){
private int a;
private int b;
private int c;
private int max;
private int min;
private int value;
this.a=a;
this.b=b;
this.c=c;
this.max=max;
this.min=min;
this.value=value;
}
@Before
public void setUp() throws Exception {
f=new Formulas(a,b,c);
}
@Parameters
public static Collection data(){
return Arrays.asList(new Object[][]{
{101,-101,99,100,-100,100},
{1,2,3,100,-100,3},
{1,3,2,100,-100,3},
{2,1,3,100,-100,3},
{3,2,1,100,-100,3},
});
}
@Test
public void testMax() {
a=f.clip(min,max,a);
b=f.clip(min,max,b);
c=f.clip(min,max,c);
f=new Formulas(a,b,c);
assertEquals(this.value,f.Max(a,b,c));
}
}
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