三角形的问题进行单元测试和coverage覆盖检测。

软件测试实验报告实验目的与要求对三角形的问题进行单元测试的编写和coverage覆盖检测。实验环境操作系统：Ubuntu 10.10编译器： CMake2.8.1 gcc 4.0开发工具：Code::Blocks 10.05前端图形展示工具: lcov 1.7编程语言：C++实验内容输入3个整数a、b和c分别作为

慕羡君

1581人浏览 · 2022-05-11 16:45:46

慕羡君 · 2022-05-11 16:45:46 发布

软件测试实验报告

实验目的与要求

对三角形的问题进行单元测试的编写和coverage覆盖检测。

实验环境

操作系统：Ubuntu 10.10

编译器： CMake2.8.1 gcc 4.0

开发工具：Code::Blocks 10.05

前端图形展示工具: lcov 1.7

编程语言：C++

实验内容

输入3个整数a、b和c分别作为三角形的三条边，根据输入的数值判断三角形的形状，有以下情况

非法输入：任意一边的值均小于0或者任意两边之和小于第三边
直线：任意两边之和等于第三边；
等腰三角形：任意两边的值相等且与第三边不等；
等边三角形：三边的值都相等；
直角三角形：任意两边的平方之和等于第三边；
钝角三角形：较小的两边的平方之和小于第三边；
锐角三角形：较小的两边的平方之和大于第三边。

测

试

用

例

描

述

及

实

验

步

骤

一、单元测试：

(1).根据问题编写C++代码

1.主函数main.cpp

#include "function/function.h"

using namespace std;

int main(int argc, char* argv[])

{

int a,b,c,temp;

char* mesg;

if(argc<4){

printf("Usage:%s must need Three parameters",argv[0]);

return 1;

}

a=atoi(argv[1]);

b=atoi(argv[2]);

c=atoi(argv[3]);

//sort (a,b,c)将输入的数据排序a<b<c

if(a>b){

temp=b; b=a;a=temp;}

if(c<b &&c>a){//c->(a,c)

temp=c; c=b;b=temp;

}

else if(c<=a){//c->(0,a]

temp=a; a=c;c=b,b=temp;

}

mesg=JudgeTriangle(a,b,c);

cout<<mesg<<endl;

return 0;

}

2.被调用的头文件function.h

#include <iostream>

#include <math.h>

#include <stdio.h>

#include <stdlib.h>

char* JudgeTriangle(int &a,int &b,int &c);

3.被调用的文件function.cpp

#include <stdio.h>

#include <math.h>

#include <stdlib.h>

char* JudgeTriangle(int &a,int &b,int &c){

char* str="";

if(a<0||b<0||c<0||a+b<c)

str="this is illegal input";

else{

if(a+b==c)//if no sort,then judgement as(a+b<=c||a+c<=b||c+b<=a)

str="this only construct a line";

else{

if( a==b||b==c){// a==b|| b==c ||a==c

str="this only constuct a isosceles triangle";

if(a==c)//a==b&& b==c

str="this only constuct a equilateral triangle";

else if(pow(a,2)+pow(b,2)==pow(c,2))

str="this only constuct a right triangle";

}

else{

if(pow(a,2)+pow(b,2)==pow(c,2))

str="this only constuct a right triangle";

else if(pow(a,2)+pow(b,2)>pow(c,2))//

str="this only constuct a acute triangle";

else

str="this only constuct a obtuse triangle";

}

return str;

}

(2)测试用例

输入特定三角形三边的值，根据打印输出是否与实际一致，若一致即通过。

1.cmake 项目根目录CMakeLists.txt文件测试用例

#test启用

enable_testing()

# 定义一个宏，用来简化测试工作

macro (do_test arg1 arg2 arg3 result)

add_test (test_abc_${arg1}_${arg2}_${arg3} Demo ${arg1} ${arg2} ${arg3})

set_tests_properties (test_abc_${arg1}_${arg2}_${arg3} PROPERTIES PASS_REGULAR_EXPRESSION ${result})

endmacro (do_test)

# 使用该宏进行一系列的数据测试

#钝角

do_test (2 3 4 "obtuse triangle")

#直角

do_test (3 4 5 "right triangle")

#锐角

do_test (4 5 6 "acute triangle")

#等边

do_test (3 3 3 "equilateral triangle")

#等腰

do_test (2 5 5 "isosceles triangle")

#非法

do_test (2 2 5 "illegal input")

#线段

do_test (2 3 5 "a line")

（3）make项目

结构

-CMakeList.txt

-main.cpp

-function

-------function.h

-------funcion.cpp

-------CMakeList.txt

命令行输入：

$Cmake .

$make

$make test

第一个CMakeList.txt

# CMake 最低版本号要求

cmake_minimum_required (VERSION 2.8)

# 项目信息

project (Triangle_problem1)

# 查找当前目录下的所有源文件

# 并将名称保存到 DIR_SRCS 变量

aux_source_directory(. DIR_SRCS)

# 添加 math 子目录

add_subdirectory(function)

# 指定生成目标

add_executable(Demo ${DIR_SRCS})

# 添加链接库

target_link_libraries(Demo Functions)

#test

enable_testing()

# 定义一个宏，用来简化测试工作

macro (do_test arg1 arg2 arg3 result)

add_test (test_abc_${arg1}_${arg2}_${arg3} Demo ${arg1} ${arg2} ${arg3})

set_tests_properties (test_abc_${arg1}_${arg2}_${arg3} PROPERTIES PASS_REGULAR_EXPRESSION ${result})

endmacro (do_test)

# 使用该宏进行一系列的数据测试

#钝角

do_test (2 3 4 "obtuse triangle")

#直角

do_test (3 4 5 "right triangle")

#锐角

do_test (4 5 6 "acute triangle")

#等边

do_test (3 3 3 "equilateral triangle")

#等腰

do_test (2 5 5 "isosceles triangle")

#非法

do_test (2 2 5 "illegal input")

#线段

do_test (2 3 5 "a line")

第二个CMakeList.txt

# 查找当前目录下的所有源文件

# 并将名称保存到 DIR_LIB_SRCS 变量

aux_source_directory(. DIR_LIB_SRCS)

# 生成链接库

add_library (Functions ${DIR_LIB_SRCS})

二、Covery覆盖率检测（创建新的项目）

(1)修改部分代码，将测试的数据放入主函数中

1.main.cpp

#include <iostream>

#include "head.h"

using namespace std;

int main()

{

JudgeTriangle(2,3,4);

JudgeTriangle(3,4,5);

JudgeTriangle(4,5,6);

JudgeTriangle(3,3,3);

JudgeTriangle(2,5,5);

JudgeTriangle(-2,5,5);

JudgeTriangle(2,3,5);

return 0;

}

2.被调用函数head.h、head.cpp（基本不变，由于字符串问题有所改动）

#include <string>//引入库

#include <iostream>

#include <math.h>

#include <stdio.h>

#include <stdlib.h>

using namespace std;

void JudgeTriangle(int r1,int r2,int r3){

int temp,a,b,c;

string str ="";

a=r1;b=r2;c=r3;

//sort (a,b,c)将输入的数据排序a<b<c

if(a>b){

temp=b; b=a;a=temp;}

if(c<b &&c>a){//c->(a,c)

temp=c; c=b;b=temp;

}

else if(c<=a){//c->(0,a]

temp=a; a=c;c=b,b=temp;

}

if(a<0||b<0||c<0||a+b<c)

str="this is illegal input";

else{

if(a+b==c)//if no sort,then judgement as(a+b<=c||a+c<=b||c+b<=a)

str="this only construct a line";

else{

if( a==b||b==c){// a==b|| b==c ||a==c

str="this only constuct a isosceles triangle";

………………………………

……………………

cout<<str<<endl;//直接打印输出

}

（2）项目结构

-main.cpp

-head.cpp

-head.h

后面lcov后会生产reslut文件夹里面有覆盖的html

(3)使用lcov 进行coverage覆盖截图检测。

1.准备工作,生成html统计信息

#第一步

install lcov

#第二步

g++ main.cpp h.cpp -fprofile-arcs -ftest-coverage -lgcov -o test_cover

lcov -c -i -d ./ -o init.info

./test_cover

lcov -c -d ./ -o cover.info

genhtml -o result cover.info

2.使用浏览器打开reslut目录下的index.html

调

试

过

程

及

实

验

结

果

单元测试

LastTest.log:(没啥用，在项目后生成的文件夹可以找到)

Start testing: May 06 19:58 CST

----------------------------------------------------------

1/7 Testing: test_abc_2_3_4

1/7 Test: test_abc_2_3_4

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "2" "3" "4"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_2_3_4" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this only constuct a obtuse triangle

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[obtuse triangle

]

"test_abc_2_3_4" end time: May 06 19:58 CST

"test_abc_2_3_4" time elapsed: 00:00:00

----------------------------------------------------------

2/7 Testing: test_abc_3_4_5

2/7 Test: test_abc_3_4_5

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "3" "4" "5"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_3_4_5" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this only constuct a right triangle

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[right triangle

]

"test_abc_3_4_5" end time: May 06 19:58 CST

"test_abc_3_4_5" time elapsed: 00:00:00

----------------------------------------------------------

3/7 Testing: test_abc_4_5_6

3/7 Test: test_abc_4_5_6

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "4" "5" "6"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_4_5_6" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this only constuct a acute triangle

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[acute triangle

]

"test_abc_4_5_6" end time: May 06 19:58 CST

"test_abc_4_5_6" time elapsed: 00:00:00

----------------------------------------------------------

4/7 Testing: test_abc_3_3_3

4/7 Test: test_abc_3_3_3

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "3" "3" "3"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_3_3_3" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this only constuct a equilateral triangle

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[equilateral triangle

]

"test_abc_3_3_3" end time: May 06 19:58 CST

"test_abc_3_3_3" time elapsed: 00:00:00

----------------------------------------------------------

5/7 Testing: test_abc_2_5_5

5/7 Test: test_abc_2_5_5

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "2" "5" "5"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_2_5_5" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this only constuct a isosceles triangle

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[isosceles triangle

]

"test_abc_2_5_5" end time: May 06 19:58 CST

"test_abc_2_5_5" time elapsed: 00:00:00

----------------------------------------------------------

6/7 Testing: test_abc_2_2_5

6/7 Test: test_abc_2_2_5

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "2" "2" "5"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_2_2_5" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this is illegal input

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[illegal input

]

"test_abc_2_2_5" end time: May 06 19:58 CST

"test_abc_2_2_5" time elapsed: 00:00:00

----------------------------------------------------------

7/7 Testing: test_abc_2_3_5

7/7 Test: test_abc_2_3_5

Command: "/home/unsp/mydocument/Triangle_problem1/build/Demo" "2" "3" "5"

Directory: /home/unsp/mydocument/Triangle_problem1/build

"test_abc_2_3_5" start time: May 06 19:58 CST

Output:

----------------------------------------------------------

this only construct a line

Test time = 0.00 sec

----------------------------------------------------------

Test Pass Reason:

Required regular expression found.Regex=[a line

]

"test_abc_2_3_5" end time: May 06 19:58 CST

"test_abc_2_3_5" time elapsed: 00:00:00

----------------------------------------------------------

End testing: May 06 19:58 CST

二、coverage覆盖截图检测

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