为什么用Mockito嘲笑静态方法在我的情况下不起作用

Question

我有这个复杂的方法。我只想嘲笑结果。所有内在的东西基本上都应该被忽略。我正在使用Mockito。

class JiraManager
{
public static  List<Issue> searchMitarbeiterIssue(String mitarbeiterName) throws JqlParseException, SearchException {
ApplicationUser user = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser();
JqlQueryParser jqlQueryParser = ComponentAccessor.getComponent(JqlQueryParser.class);
SearchService searchService = ComponentAccessor.getComponent(SearchService.class);
String jqlSearchString = "project = BLUB AND issuetype = BLOB AND text ~ "" + myName+ """+" AND status = aktive";
final Query query = jqlQueryParser.parseQuery(jqlSearchString);
List<Issue> issues = null;
Query queryToExecute = JqlQueryBuilder.newBuilder(query).buildQuery();
// get results for the jql query
SearchResults searchResult = searchService.search(user, queryToExecute, PagerFilter.getUnlimitedFilter());
try {
Method newGetMethod = null;
try {
newGetMethod = SearchResults.class.getMethod("getIssues");
} catch (NoSuchMethodException e) {
try {
LOGGER.warn("SearchResults.getIssues does not exist - trying to use getResults!");
newGetMethod = SearchResults.class.getMethod("getResults");
} catch (NoSuchMethodError e2) {
LOGGER.error("SearchResults.getResults does not exist!");
}
}
if (newGetMethod != null) {
issues = (List<Issue>) newGetMethod.invoke(searchResult);
} else {
LOGGER.error("ERROR NO METHOD TO GET ISSUES !");
throw new RuntimeException("ICT: SearchResults Service from JIRA NOT AVAILABLE (getIssue / getResults)");
}
} catch (NoSuchMethodException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
LOGGER.error("Jql Helper can not get search result (ICT)", e);
} catch (Exception e) {
LOGGER.error("Jql Helper can not get search result - other exception (ICT)", e);
}
return issues;
}
}

我不希望Mockito运行该方法中的所有代码。它应该只返回List。仅此而已。所以我尝试了这个：

try (MockedStatic<JiraManager> utilities = Mockito.mockStatic(JiraManager.class)) {
utilities.when(() -> JiraManager.searchMitarbeiterIssue(any()))
.thenReturn(Collections.singletonList(mitarbeiterIssueResult));
assertTrue(JiraManager.searchMitarbeiterIssue("").size() == 1);
} 

但它不起作用。它总是返回null。为什么？方法中的代码是否已执行？Mockito到底在做什么？

Answer 1

下面对我有用。

1. 创建MockedStatic类字段

private MockedStatic<MyUtilClassWithStaticMethods> myUtil;

2. 在每个测试用例之前初始化MockedStatic

@BeforeEach
void initialiseWorker() {
myUtil = mockStatic(MyUtilClassWithStaticMethods.class);
}

3. 在每个测试用例后关闭MockedStatic

@AfterEach
public void close() {
myUtil.close();
}

4. 模拟测试用例中的静态方法行为

@Test
void test() {
when(MyUtilClassWithStaticMethods.staticMethod(any())).thenReturn(null);
}

您可以在此处返回list而不是null。