Basic path test of software test on the function of the previous day

    Basic path testing

The experimental requirements ：

Please use the basic path method to design the test case for the function of the previous day .

According to the code obtained from the exchange , Draw a flow chart , Flow chart , Computational cyclomatic complexity , Give an independent path , Design test cases , Perform the test .

Compare the expected results with the actual operation results and give the test conclusion .

 

flow chart ：

 

 

 

 

 

Flow chart ：

 

 

 

Computational cyclomatic complexity V(G)：

 

　　 Use the formula ：V(G) = P +1 have to , The cycle complexity is equal to the number of decision nodes plus one , According to the control flow diagram drawn above , You can know ：3、4、5、7、11、14、18、19、21、22、25、29 Yes decision node , share 12 individual , So the cyclomatic complexity is 12 +1 =13.

　　 It can also be further verified , Through the control flow diagram, we can also know , share 13 Regions , Then the cycle complexity is 13.

 

Give an independent path ：

route 1：1->2->3->8->32

route 2：1->2->3->4->9->32

route 3：1->2->3->4->5->10->32

route 4：1->2->3->4->5->6->11->13->32

route 5：1->2->3->4->5->6->11->7->16->17->18->32

route 6：1->2->3->4->5->6->11->12->14->15->32

route 7：1->2->3->4->5->6->11->12->14->19->21->29->31->32

route 8：1->2->3->4->5->6->11->12->14->19->21->29->30->32

route 9：1->2->3->4->5->6->11->12->14->19->21->22->24->32

route 10：1->2->3->4->5->6->11->12->14->19->21->22->23->25->26->28->32

route 11：1->2->3->4->5->6->11->12->14->19->21->22->23->25->27->28->32

route 12：1->2->3->4->5->6->11->12->14->19->20->32

route 13：1->2->3->4->5->6->11->12->18->15->32

 

Design test cases and compare the results after execution ：

Test number	Year	Month	Day	Expected results	The actual result
1	2080	3	1	Prompt Please enter the correct year	Prompt Please enter the correct year
2	2020	15	2	Prompt Please enter the correct month	Prompt Please enter the correct month
3	2020	11	35	Prompt Please enter the correct day	Prompt Please enter the correct day
4	2020	4	31	Prompt Please enter the correct day	Prompt Please enter the correct day
5	2000	2	30	Prompt Please enter the correct day	Prompt Please enter the correct day
6	2001	2	29	Prompt Please enter the correct day	Prompt Please enter the correct day
7	2000	3	1	The day before was 2000 year 2 month 29 Number	The day before was 2000 year 2 month 29 Number
8	2001	3	1	The day before was 2001 year 2 month 28 Number	The day before was 2001 year 2 month 28 Number
9	2000	1	1	The day before was 1999 year 12 month 31 Number	The day before was 1999 year 12 month 31 Number
10	2000	5	3	The day before was 2000 year 5 month 2 Number	The day before was 2000 year 5 month 2 Number
11	2000	5	1	The day before was 2000 year 4 month 30 Number	The day before was 2000 year 4 month 30 Number
12	2000	4	1	The day before was 2000 year 3 month 31 Number	The day before was 2000 year 3 month 31 Number
13	2000	4	3	The day before was 2000 year 4 month 2 Number	The day before was 2000 year 4 month 2 Number

 

 

Program code ：

import java.util.Scanner;

public class test1 {
    public static void main(String args[]){
        Scanner input = new Scanner(System.in);
        // Enter the month, year and day in sequence 
        System.out.print(" Please enter the date ：");
        int year = input.nextInt();
        int month=input.nextInt();
        int day=input.nextInt();

        // Judge whether the date is entered as normal 
        if (year<1900||year>2020){
            System.out.println(" Please enter the correct year ！！！");
            return;
        }
        if (month<1||month>12){
            System.out.println(" Please enter the correct month ！！！");
            return;
        }
        if(day<1||day>31){
            System.out.println(" Please enter the correct day ！！！");
            return;
        }
        if (month==4||month==6||month==9||month==11){
            if (day==31){
                System.out.println(" Please enter the correct day ！！！");
                return;
            }
        }
        // Judge whether it is a leap year or a non leap year , We'll use that later 
        boolean flag = (year%4==0 && year%100!=0 || year%400==0);
        // Judge whether the date of February in leap year and normal year is entered correctly 
        if (flag){
            if (month==2) {
                if (day>29){
                    System.out.println(" Please enter the correct day ！！！");
                    return;
                }
            }
        }else {
            if (month==2) {
                if (day>28){
                    System.out.println(" Please enter the correct day ！！！");
                    return;
                }
            }
        }

        // Calculate the day before the input date 
        if (day==1){    // If it's the first of every month 
            // If it is 3 January 1st 
            if (month==3){
                if(flag){
                    System.out.println(" The day before was "+year+" year "+"2 month "+"29 Number ");
                }else {
                    System.out.println(" The day before was "+year+" year "+"2 month "+"28 Number ");
                }
            }else{
                if (month==1){
                    System.out.println(" The day before was "+(year-1)+" year "+"12 month "+"31 Number ");
                }else {
                    month--;
                    if (month==1||month==3||month==5||month==7||month==8||month==10||month==12){
                        day=31;
                    }else{
                        day=30;
                    }
                    System.out.println(" The day before was "+year+" year "+month+" month "+day+" Number ");
                }
            }
        }else {
            System.out.println(" The day before was "+(year)+" year "+month+" month "+(day-1)+" Number ");
        }
    }
}

 

Test sample demonstration ：

demonstration （ Test number 1）：

 

demonstration （ Test number 2）：

 

demonstration （ Test number 3）：

 

demonstration （ Test number 4）：

 

demonstration （ Test number 5）： 

 

demonstration （ Test number 6）：

 

demonstration （ Test number 7）：

demonstration （ Test number 8）： 

 

demonstration （ Test number 9）： 

 

demonstration （ Test number 10）： 

 

demonstration （ Test number 11）：

 

demonstration （ Test number 12）：

 

 

 

 

Test conclusion ：

　　 Based on the data tested , The program system function of the previous day tends to be stable , The test data within the range required by the experiment have been tested without any problem , This round of test experiment can be ended .