Java 错误:参数匹配器的使用无效!需要0个匹配器,记录了1个
我试图为我的方法做一个测试用例,但我得到了下面的错误 参数匹配器的使用无效!需要0个匹配器,记录了1个 我不知道问题出在哪里。我试过很多东西,像anyIny,anyString也不起作用 如何处理JsonObject 此行中的错误:verifymockPreparedStmnt,times8.setstringanint,mock.toString 我还有一个问题: 我如何处理if语句,如果它不等于ADD 这是我尝试测试它的方法Java 错误:参数匹配器的使用无效!需要0个匹配器,记录了1个,java,unit-testing,junit,mockito,Java,Unit Testing,Junit,Mockito,我试图为我的方法做一个测试用例,但我得到了下面的错误 参数匹配器的使用无效!需要0个匹配器,记录了1个 我不知道问题出在哪里。我试过很多东西,像anyIny,anyString也不起作用 如何处理JsonObject 此行中的错误:verifymockPreparedStmnt,times8.setstringanint,mock.toString 我还有一个问题: 我如何处理if语句,如果它不等于ADD 这是我尝试测试它的方法 public ApprovalManagementBean
public ApprovalManagementBean insertOrUpdateApprovalManagement(String body,
String transactionType) throws IOException,
JsonParseException,
JsonMappingException {
ApprovalManagementBean obj = new ApprovalManagementBean();
List<JSONObject> beanList = new ArrayList<JSONObject>();
JSONArray arr = new JSONArray(body);
JSONObject jsonObjInput;
String body2 = "";
try {
if (transactionType.equals("ADD")) {
int transactionNum = 23;
connection = getConnection();
for (int i = 0; i < arr.length(); i++) {
jsonObjInput = arr.getJSONObject(i);
String query =
"INSERT INTO " + " " + getSchema_Name() + ".XXX_APROVAL_MANAGEMENT(EIT_CODE,TRANSACTION_NUM)\n" +
"VALUES(?,?)";
ps = connection.prepareStatement(query);
ps.setString(1, jsonObjInput.get("eitCode").toString());
ps.setInt(2, transactionNum);
ps.executeUpdate();
}
} else if (transactionType.equals("EDIT")) {
connection = getConnection();
for (int i = 0; i < arr.length(); i++) {
jsonObjInput = arr.getJSONObject(i);
String query =
"UPDATE " + " " + getSchema_Name() + ".XXX_APROVAL_MANAGEMENT AM SET am.enable = ?";
ps = connection.prepareStatement(query);
ps.setString(1,
!jsonObjInput.isNull("enable") ? jsonObjInput.get("enable").toString() :"");
ps.executeUpdate();
}
}
} catch (Exception e) {
//("Error: ");
e.printStackTrace();
} finally {
closeResources(connection, ps, rs);
}
return obj;
}
public int getTransactionApprovalManagementNumber() {
connection = getConnection();
String query =
"SELECT NVL(MAX(TRANSACTION_NUM),0) AS max_transaction_approval FROM " +
" " + getSchema_Name() + ".XXX_APROVAL_MANAGEMENT";
try {
ps = connection.prepareStatement(query);
rs = ps.executeQuery();
while (rs.next()) {
max_transaction = rs.getInt("max_transaction_approval");
}
} catch (Exception e) {
//("Error: ");
e.printStackTrace();
} finally {
closeResources(connection, ps, rs);
}
max_transaction++;
return max_transaction;
}
@Before
public void setUp() throws SQLException {
approvalManagementDAO = new ApprovalManagementDAO();
when(mockConn.prepareStatement(anyString())).thenReturn(mockPreparedStmnt);
doNothing().when(mockConn).commit();
doNothing().when(mockPreparedStmnt).setString(anyInt(), anyString());
when(mockPreparedStmnt.executeQuery()).thenReturn(mockResultSet);
when(mockResultSet.next()).thenReturn(Boolean.TRUE, Boolean.FALSE);
approvalManagementDAO = new ApprovalManagementDAO() {
@Override
public Connection getConnection() {
return mockConn;
}
};
}
@Test
public void insertOrUpdateApprovalManagement() throws IOException,
JsonParseException,
JsonMappingException,
SQLException {
String body = "[]";
String transactionType = "ADD";
JSONObject mock = Mockito.mock(JSONObject.class);
approvalManagementDAO.insertOrUpdateApprovalManagement(body,
transactionType);
verify(mockConn, times(1)).prepareStatement(anyString());
verify(mockPreparedStmnt, times(8)).setString(anyInt(), mock.toString());
// verify(mockPreparedStmnt, times(1)).setInt(anyInt(), anyInt());
verify(mockPreparedStmnt, times(1)).executeUpdate();
}
根据你原来的课程,我去掉了一些东西 编辑: 我还没有将它与您的第二次编辑进行比较,所以它可能不是您想要的 看起来与您的第二次编辑非常相似,但您必须做更多的事情来模拟真实案例中getTransactionApprovalManagementNumber的行为。Fow现在你用一个固定的号码代替了它 看看我使用的JUnit 5和Mockito 2.27.x:
@ExtendWith(MockitoExtension.class)
class Test {
public static class ApprovalManagementDAO {
public ApprovalManagementBean insertOrUpdateApprovalManagement(JSONArray arr, String transactionType)
throws Exception {
ApprovalManagementBean obj = new ApprovalManagementBean();
JSONObject jsonObjInput;
Connection connection = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
if (transactionType.equals("ADD")) {
connection = getConnectionFromAppsPro();
for (int i = 0; i < arr.length(); i++) {
jsonObjInput = arr.getJSONObject(i);
String query = "some insert query";
ps = connection.prepareStatement(query);
ps.setString(1, jsonObjInput.get("eitCode").toString());
ps.setString(2, !jsonObjInput.isNull("segementName") ? jsonObjInput.get("segementName").toString() : "");
ps.executeUpdate();
}
} else if (transactionType.equals("EDIT")) {
connection = getConnectionFromAppsPro();
for (int i = 0; i < arr.length(); i++) {
jsonObjInput = arr.getJSONObject(i);
String query = "some update query";
ps = connection.prepareStatement(query);
ps.setString(1, !jsonObjInput.isNull("enable") ? jsonObjInput.get("enable").toString() : "");
ps.executeUpdate();
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
closeResources(connection, ps, rs);
}
return obj;
}
private void closeResources(Connection connection, PreparedStatement ps, ResultSet rs) {
}
Connection getConnectionFromAppsPro() {
return null;
}
}
Connection mockConn;
PreparedStatement mockPreparedStmnt;
ApprovalManagementDAO approvalManagementDAO;
@BeforeEach
public void setUp() throws SQLException {
mockConn = Mockito.mock(Connection.class);
mockPreparedStmnt = Mockito.mock(PreparedStatement.class);
Mockito.when(mockConn.prepareStatement(Mockito.anyString())).thenReturn(mockPreparedStmnt);
approvalManagementDAO = new ApprovalManagementDAO() {
@Override
public Connection getConnectionFromAppsPro() {
return mockConn;
}
};
}
@Test
public void insertOrUpdateApprovalManagement() throws Exception {
String transactionType = "ADD";
JSONObject mockJsonObject = Mockito.mock(JSONObject.class);
Mockito.when(mockJsonObject.get(Mockito.anyString())).thenReturn("");
JSONArray mockJsonArray = Mockito.mock(JSONArray.class);
Mockito.when(mockJsonArray.length()).thenReturn(1);
Mockito.when(mockJsonArray.getJSONObject(0)).thenReturn(mockJsonObject);
approvalManagementDAO.insertOrUpdateApprovalManagement(mockJsonArray, transactionType);
Mockito.verify(mockConn, Mockito.times(1)).prepareStatement(Mockito.anyString());
Mockito.verify(mockPreparedStmnt, Mockito.times(2)).setString(Mockito.anyInt(), Mockito.anyString());
Mockito.verify(mockPreparedStmnt, Mockito.times(1)).executeUpdate();
}
}
如果您不想更改方法签名,请记住在正文中使用有效的json格式,例如:[{eitCode:x,segementName:y}]是否可以修复该示例,以便insertOrUpdateApprovalManagement至少具有正确数量的右括号?mock.toString将只返回null,因为您没有声明任何其他内容,但此时您应该使用所有匹配器或无匹配器。你说你试过了,但在这种情况下,你会得到不同的错误。doNothing模拟不是必需的,因为这是默认行为。请检查更新的@第二,我自己复制它仍然有很多缺失。你能把它简化成一个数字吗?我想每个分支一个ps.setString就足够了,还可以添加ApprovalManagementDAO缺少的字段/方法。对于JSONArray:您可以将其作为输入参数而不是主体提供,以便模拟它。否则,您需要提供一个包含测试所需信息的有效正文。对于TransactionType:我不确定您想要表达什么?你的测试应该涵盖这两个分支。你现在能检查一下吗?它给我这个错误org.json.JSONException:JSONArray文本必须以“[”开头,在1[字符2第1行]处,这不应该来自我的代码。我反正也不创建真正的JSONArray对象。你能用你所做的更新你的问题吗?或者我们可以使用聊天室?