Softwaretesting 10 eng

ソフトウェアテスト
　　 [10] リファクタリング演演
習
Software Testing
[10] Refactoring Exercise & Seminar
あまん ひろひさ ひろひさ

阿萬 裕久 裕久（ AMAN

Hirohisa ）

(C) 2007-2022 Hirohisa AMAN

1


Exercise purpose
 Refactoring program to experience an
d learn the importance of writing in an
easy-to-understand manner
 Main contents
 Improve unorganized indentation, variabl
e names, and function names in confusin
g prog ram
 Improve long unorg anized program prog ram
 Reg ression testing along with refactoring
(C) 2007-2022 Hirohisa AMAN

2

Exercise content
 Exercise 1

Refactor programs that are completely unor
ganized for indentation, variable names, an
d function names
However, do regression testing as well

 Exercise 2

Refactor a given program
Do regression testing as well
(C) 2007-2022 Hirohisa AMAN

3


Exercise 1 (1/2)
[Target program] sample1001.c
 This program is supposed to sort inte
gers, but due to poor writing,
it is incomprehensible content
 First, look at the specification spec1001.
pdf  Create test cases and run tests  Wri
te the contents in test-report1001.xls
x
(Think more than 5)
(C) 2007-2022 Hirohisa AMAN

4

Exercise 1 (2/2)
 Note the following points in sample100
1.c Perf orm refactoring :
 Ind programentation
 Variable name
 Function name

Add comments
if necessary

 Then, test with the test cases you prepare test with the test cases you prepare
d program (record programed program in test-report1001.xlsx) and program
make sure that they work correctly even
after refactoring (This is called program reg ression
testing .)
(C) 2007-2022 Hirohisa AMAN

5


Submission of Exercise 1
If you do pair programming
 Submit to Teams
with two people, both of you
should submit the same thing.
sample1001.c and
test-report1001.xlsx

[10] Exercise-1 (Refactoring)
 Submission deadline: May 16,
　　　　　　 13:00 (Vietnam time)
　　　　　　　　　　
(C) 2007-2022 Hirohisa AMAN

6


Exercise 2 (1/2)
[Target program] sample1002.c
 This program is Binary and program d programecimal co
nversion, test with the test cases you prepare but it is bad program writing .
 First, look at the specification spec1002.
pdf  Create test cases and run tests  Wri
te the contents in test-report1002.xls
x
(Think more than 5)
(C) 2007-2022 Hirohisa AMAN

7


Exercise 2 (2/2)
 Note the following points in sample100
2.c Perf orm refactoring :
 Split the contents of main function into functi
ons
Add comments
 Make variable names meaning ful

if necessary
 Turn hard programcod programing into macros

 Then, test with the test cases you prepare test with the test cases you prepare
d program (record programed program in test-report1002.xlsx) and program
make sure that they work correctly even
after refactoring
(C) 2007-2022 Hirohisa AMAN

8


Submission of Exercise 2
If you do pair programming
 Submit to Teams
with two people, both of you
should submit the same thing.
sample1002.c and
test-report1002.xlsx

[10] Exercise-2 (Refactoring)
 Submission deadline: May 22,
　　　　　　 13:00 (Vietnam time)
　　　　　　　　　　
(C) 2007-2022 Hirohisa AMAN

9


Survey

 In this exercise, you can do it alone,
or you can do pair programming with
2 people.
 I want to know which one you chose,
so please answer the survey first

[10] Survey (you must answer first)
(C) 2007-2022 Hirohisa AMAN

10