追求代码质量: 探究 XMLUnit
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清单 1 很明显是由应用程序生成的;因而,第一层测试就是验证应用程序是否真能生成一个文档。一旦验证了这一点,就可以继续测试指定文档的其他三个方面:
结构
内容
指定内容
可以通过单独使用 JUnit 利用 String 比较处理上述前两个方面,如清单 2 所示:
清单2. 硬性验证 XML
public class XMLReportTest extends TestCase {
private Filter[] getFilters(){
Filter[] fltrs = new Filter[2];
fltrs[0] = new RegexPackageFilter("java|org");
fltrs[1] = new SimplePackageFilter("net.");
return fltrs;
}
private Dependency[] getDependencies(){
Dependency[] deps = new Dependency[2];
deps[0] = new Dependency("com.acme.resource.Configuration");
deps[1] = new Dependency("com.acme.xml.Document");
return deps;
}
public void testToXML() {
Date now = new Date();
BatchDependencyXMLReport report =
new BatchDependencyXMLReport(now, this.getFilters());
report.addTargetAndDependencies(
"com.acme.web.Widget", this.getDependencies());
report.addTargetAndDependencies(
"com.acme.web.Account", this.getDependencies());
String valid = "<DependencyReport date=\"" + now.toString() + "\">"+
"<FiltersApplied><Filter pattern=\"java|org\" /><Filter pattern=\"net.\" />"+
"</FiltersApplied><Class name=\"com.acme.web.Widget\">" +
" <Dependency name=\"com.acme.resource.Configuration\" />"+
"<Dependency name=\"com.acme.xml.Document\" /></Class>"+
"<Class name=\"com.acme.web.Account\">"+
"<Dependency name=\"com.acme.resource.Configuration\" />"+
"<Dependency name=\"com.acme.xml.Document\" />"+
"</Class></DependencyReport>";
assertEquals("report didn't match xml", valid, report.toXML());
}
}
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