软件测试第三周 - 等价类划分 2

等价类划分的应用 2

• 在上一个等价类划分 demo 的基础上由一个 textField 变为三个
• 将上次的检验函数 isValid 更改为由正则表达式判断的 textCheckWithRegax 函数
• 正则表达式 [A-Za-z0-9]
• 测试过程中三个皆不符合时没有提示信息，检查半天发现把 if 里的判断条件 "=="写成了"&&".......犯了低级错误.......

if (validity1 == false && validity2 && false && validity3 == false){
        message = [NSString stringWithFormat:@"三个输入框均不符合要求"];
    }

• 测试用例
• |编号|第一个输入框 |第二个输入框|第三个输入框|输出|
  |-|-|-|-|-|
  |1|null|null|null|三个输入框均不符合要求|
  |2|abc|123|ab112|三个输入框均符合要求|
  |3|abc..|123|ab112|第一个输入框不符合要求|
  |4|abc|123..|ab112|第二个输入框不符合要求|
  |5|abc|123|ab112.|第三个输入框不符合要求|
  |6|abcadlsfkja|123|ab112|第一个输入框不符合要求|
  |7|abcadlsfkja|12312192 |ab112|只有第三个输入框符合要求|
  |8|abcadlsfkja|12312192|ab112sfav|三个输入框均不符合要求|

测试结果截图

//
//  ViewController.m
//  testApp
//
//  Created by trigger on 15/3/22.
//  Copyright (c) 2015年 trigger. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()
@property (strong, nonatomic) IBOutlet UITextField *textBox3;
@property (strong, nonatomic) IBOutlet UITextField *textBox2;
@property (strong, nonatomic) IBOutlet UITextField *textBoxText;
- (IBAction)buttonPress:(id)sender;
@end

@implementation ViewController
@synthesize textBoxText;
@synthesize textBox2;
@synthesize textBox3;

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    [self textCheckWithRegex:@""];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)buttonPress:(id)sender {
    BOOL validity1, validity2, validity3;
    validity1 = [self textCheckWithRegex:textBoxText.text];
    validity2 = [self textCheckWithRegex:textBox2.text];
    validity3 = [self textCheckWithRegex:textBox3.text];
    NSString *message;
    if (validity1 == false && validity2 == false && validity3 == false){
        message = [NSString stringWithFormat:@"三个输入框均不符合要求"];
    }
    else if(validity1 == true && validity2 == true && validity3 == true){
        message = [NSString stringWithFormat:@"三个输入框均符合要求"];
    }
    else if(validity1 == false && validity2 == true && validity3 == true){
        message = [NSString stringWithFormat:@"第一个输入框不符合要求"];
    }
    else if(validity1 == true && validity2 == false && validity3 == true){
        message = [NSString stringWithFormat:@"第二个输入框不符合要求"];
    }
    else if(validity1 == true && validity2 == true && validity3 == false){
        message = [NSString stringWithFormat:@"第三个输入框不符合要求"];
    }
    else if(validity1 ==  true && validity2 == false && validity3 == false){
        message = [NSString stringWithFormat:@"只有第一个输入框符合要求"];
    }
    else if(validity1 == false && validity2 == true && validity3 == false){
        message = [NSString stringWithFormat:@"只有第二个输入框符合要求"];
    }
    else if(validity1 == false && validity2 == false && validity3 == true){
        message = [NSString stringWithFormat:@"只有第三个输入框符合要求"];
    }
    
    if ([textBoxText.text isEqualToString:@""] && [textBox2.text isEqualToString:@""] && [textBox3.text isEqualToString:@""]){
        message = [NSString stringWithFormat:@"三个输入框均不符合要求"];
    }
    [[[UIAlertView alloc]initWithTitle:@"等价类检查" message:message delegate: nil cancelButtonTitle:@"好的" otherButtonTitles:nil, nil]show];
}

- (BOOL)textCheckWithRegex:(NSString*)str{
    NSString *searchText = [NSString stringWithString:str];
    NSError *error = NULL;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[A-Za-z0-9]{1,6}" options:NSRegularExpressionCaseInsensitive error:&error];
    NSTextCheckingResult *result = [regex firstMatchInString:searchText options:0 range:NSMakeRange(0, [searchText length])];
    searchText = [searchText substringWithRange:result.range];
    if ([str isEqualToString:searchText] && ![str isEqualToString:@""]) {
        return true;
    }
    else{
        return false;
    }
}

@end