WordCountPro开发与测试总结
Posted jinqi928
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(1)Github项目地址:https://github.com/cosensible/WordCountPlus
(2)PSP表格
PSP2.1 | PSP阶段 | 预估耗时(分钟) | 实际耗时(分钟) |
---|---|---|---|
· Planning | · 计划 | 30 | 30 |
· Estimate | · 估计这个任务需要多少时间 | 30 | 30 |
· Development | · 开发 | 90 | 120 |
· Analysis | · 需求分析 (包括学习新技术) | 30 | 60 |
· Design Spec | · 生成设计文档 | 30 | 30 |
· Design Review | · 设计复审 (和同事审核设计文档) | 30 | 30 |
· Coding Standard | · 代码规范 (为目前的开发制定合适的规范) | 30 | 60 |
· Design | · 具体设计 | 20 | 40 |
· Coding | · 具体编码 | 60 | 90 |
· Code Review | · 代码复审 | 30 | 45 |
· Test | · 测试(自我测试,修改代码,提交修改 | 30 | 45 |
· Reporting | · 报告 | 60 | 90 |
· Test Report | · 测试报告 | 30 | 45 |
· Size Measurement | · 计算工作量 | 15 | 15 |
· Postmortem & Process Improvement Plan | · 事后总结, 并提出过程改进计划 | 20 | 30 |
· 合计 | 635 | 760 |
(3)代码设计思路
???这次题目的需求明确了很多,也集中在了统计词频上,因此,我们很容易就确定应有一个模块用于统计词频,为此新建一个类WordFrequencyCountUtil及主要方法countWordFrequency如下,输入为文件中提取出的字符串数组,输出为排过序且添加了词频的字符串数组。
public class WordFrequencyCountUtil {
public static String[] countWordFrequency(String[] resultContents){
???对于符合要求的单词的筛选可以使用正则表达式,利用Matcher.find找到字符串中满足正则表达式的子串,利用substring截取子串。
for(String content:resultContents){
//按照规则,找出每行中,形如abc(-ab)*这样的单词
String regex="[a-zA-Z]+(-[a-zA-Z]+)*";
Pattern pattern=Pattern.compile(regex);
Matcher matcher=pattern.matcher(content);
while (matcher.find()){
input(content.substring(matcher.start(),matcher.end()),resultMap);
}
}
???利用map存储单词和对应的词频,为此新建input方法将内容存入map,存入时将单词小写化,同时判断map中是否已有同一单词。
private static void input(String s,Map<String,Integer> map){
s=s.toLowerCase();
if(map.containsKey(s)){
map.put(s,map.get(s)+1);
}else
map.put(s,1);
}
???对于map中的单词进行词频排序,满足题目所需要求,优先比较词频,其次比较字母顺序
List<Map.Entry<String,Integer>> list=new ArrayList<>(resultMap.entrySet());
Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {
@Override
public int compare(Map.Entry<String, Integer> o1, Map.Entry<String, Integer> o2) {
if(o1.getValue()<o2.getValue())
return 1;
if(o1.getValue()>o2.getValue())
return -1;
return o1.getKey().compareTo(o2.getKey());
}
});
???将map中的单词和词频拼接成一个字符串,存入字符数组中待用。
String[] results=new String[list.size()];
int index=0;
for(Map.Entry<String,Integer> entry:list){
results[index++]=entry.getKey()+" "+entry.getValue();
}
return results;
(4)测试设计过程
???由于模块逻辑较简单,仅从sort函数角度进行路径覆盖测试,即对大小写分别测试:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int"});
assertEquals("int 1", result[0]);
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"Int"});
assertEquals("int 1", result[0]);
???根据输入格式规定设计黑盒测试,
???首先测试一个单词单频的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int"});
assertEquals("int 1", result[0]);
???测试一个单词多词频的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int int"});
assertEquals("int 2", result[0]);
???测试多个单词的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int main int"});
assertEquals("int 2", result[0]);
???测试含有-的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int-"});
assertEquals("int 1", result[0]);
???测试两个单词由-连接的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int-int"});
assertEquals("int-int 1", result[0]);
???测试多个单词由-连接的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int-int-int"});
assertEquals("int-int-int 1", result[0]);
???测试空格和-连接的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int -int-int"});
assertEquals("int 1", result[0]);
???测试含有,的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int,is"});
assertEquals("int 1", result[0]);
???测试含有\\的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"\\"int"});
assertEquals("int 1", result[0]);
???测试含有数字的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int1"});
assertEquals("int 1", result[0]);
???测试含有(的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"(int"});
assertEquals("int 1", result[0]);
???测试含有数字和其他符号的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"1int)"});
assertEquals("int 1", result[0]);
???测试空字符串的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{" "});
assertEquals(0, result.length);
???测试null的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{});
assertEquals(0, result.length);
???测试输入有多个字符串的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int", "int main"});
assertEquals("int 2", result[0]);
???测试多字符混合的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"(see Box 3–2).8885d_c01_016"});
assertEquals("box 1", result[0]);
???测试大小写和数字-混合的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"taBlE1-2", "table"});
assertEquals("table 2", result[0]);
???测试数字和字母混合的多字符串的情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"table1-2", "table112"});
assertEquals("table 2", result[0]);
???测试首字母相同时的排序情况:
String[] result = WordFrequencyCountUtil.countWordFrequency(new String[]{"int i i int"});
assertEquals("i 2", result[0]);
(5)测试运行和评价
???测试运行截图:
???测试用例满足需求,测试结果正确,程序代码无误。