diff --git a/backend/services/test-plan/src/test/java/io/metersphere/plan/controller/TestPlanCaseControllerTests.java b/backend/services/test-plan/src/test/java/io/metersphere/plan/controller/TestPlanCaseControllerTests.java
index 92e98872d2..8e4fcee0ec 100644
--- a/backend/services/test-plan/src/test/java/io/metersphere/plan/controller/TestPlanCaseControllerTests.java
+++ b/backend/services/test-plan/src/test/java/io/metersphere/plan/controller/TestPlanCaseControllerTests.java
@@ -279,6 +279,30 @@ public class TestPlanCaseControllerTests extends BaseTest {
         ResultHolder resultHolder = JSON.parseObject(returnData, ResultHolder.class);
         FunctionalCaseDetailDTO functionalCaseDetailDTO = JSON.parseObject(JSON.toJSONString(resultHolder.getData()), FunctionalCaseDetailDTO.class);
         Assertions.assertTrue(CollectionUtils.isEmpty(JSON.parseArray(functionalCaseDetailDTO.getSteps(), FunctionalCaseDetailDTO.class)));
+        FunctionalCaseStepDTO functionalCaseStepDTO = new FunctionalCaseStepDTO();
+        functionalCaseStepDTO.setId("id_step");
+        functionalCaseStepDTO.setNum(1);
+        functionalCaseStepDTO.setDesc("步骤一");
+        functionalCaseStepDTO.setResult("步骤一结果");
+        functionalCaseStepDTO.setActualResult("步骤一实际结果");
+        functionalCaseStepDTO.setExecuteResult("SUCCESS");
+        String jsonString = JSON.toJSONString(functionalCaseStepDTO);
+        FunctionalCaseBlob functionalCaseBlob = new FunctionalCaseBlob();
+        functionalCaseBlob.setId("gyq_disassociate_fc_4");
+        functionalCaseBlob.setSteps(jsonString.getBytes());
+        String textDescription = "textDescription";
+        String expectedResult = "expectedResult";
+        String prerequisite = "prerequisite";
+        String description = "description";
+        functionalCaseBlob.setPrerequisite(prerequisite.getBytes(StandardCharsets.UTF_8));
+        functionalCaseBlob.setTextDescription(textDescription.getBytes(StandardCharsets.UTF_8));
+        functionalCaseBlob.setExpectedResult(expectedResult.getBytes(StandardCharsets.UTF_8));
+        functionalCaseBlob.setDescription(description.getBytes(StandardCharsets.UTF_8));
+        functionalCaseBlobMapper.updateByPrimaryKeyWithBLOBs(functionalCaseBlob);
+        mvcResult = this.requestGetWithOkAndReturn(FUNCTIONAL_CASE_DETAIL + "gyq_disassociate_case_4");
+        returnData = mvcResult.getResponse().getContentAsString(StandardCharsets.UTF_8);
+        resultHolder = JSON.parseObject(returnData, ResultHolder.class);
+        Assertions.assertNotNull(resultHolder);
         TestPlanCaseExecuteHistory testPlanCaseExecuteHistory = new TestPlanCaseExecuteHistory();
         testPlanCaseExecuteHistory.setCaseId("gyq_disassociate_fc_4");
         testPlanCaseExecuteHistory.setTestPlanCaseId("gyq_disassociate_case_4");
@@ -293,28 +317,14 @@ public class TestPlanCaseControllerTests extends BaseTest {
         resultHolder = JSON.parseObject(returnData, ResultHolder.class);
         Assertions.assertNotNull(resultHolder);
         TestPlanCaseExecuteHistory testPlanCaseExecuteHistory1 = testPlanCaseExecuteHistoryMapper.selectByPrimaryKey("history_id");
-        FunctionalCaseStepDTO functionalCaseStepDTO = new FunctionalCaseStepDTO();
-        functionalCaseStepDTO.setId("id_step");
-        functionalCaseStepDTO.setNum(1);
-        functionalCaseStepDTO.setDesc("步骤一");
-        functionalCaseStepDTO.setResult("步骤一结果");
-        functionalCaseStepDTO.setActualResult("步骤一实际结果");
-        functionalCaseStepDTO.setExecuteResult("SUCCESS");
-        String jsonString = JSON.toJSONString(functionalCaseStepDTO);
+        testPlanCaseExecuteHistory1.setSteps(new byte[0]);
+        testPlanCaseExecuteHistoryMapper.updateByPrimaryKeySelective(testPlanCaseExecuteHistory1);
+        mvcResult = this.requestGetWithOkAndReturn(FUNCTIONAL_CASE_DETAIL + "gyq_disassociate_case_4");
+        returnData = mvcResult.getResponse().getContentAsString(StandardCharsets.UTF_8);
+        resultHolder = JSON.parseObject(returnData, ResultHolder.class);
+        Assertions.assertNotNull(resultHolder);
         testPlanCaseExecuteHistory1.setSteps(jsonString.getBytes());
         testPlanCaseExecuteHistoryMapper.updateByPrimaryKeySelective(testPlanCaseExecuteHistory1);
-        FunctionalCaseBlob functionalCaseBlob = new FunctionalCaseBlob();
-        functionalCaseBlob.setId("gyq_disassociate_fc_4");
-        functionalCaseBlob.setSteps(jsonString.getBytes());
-        String textDescription = "textDescription";
-        String expectedResult = "expectedResult";
-        String prerequisite = "prerequisite";
-        String description = "description";
-        functionalCaseBlob.setPrerequisite(prerequisite.getBytes(StandardCharsets.UTF_8));
-        functionalCaseBlob.setTextDescription(textDescription.getBytes(StandardCharsets.UTF_8));
-        functionalCaseBlob.setExpectedResult(expectedResult.getBytes(StandardCharsets.UTF_8));
-        functionalCaseBlob.setDescription(description.getBytes(StandardCharsets.UTF_8));
-        functionalCaseBlobMapper.updateByPrimaryKeyWithBLOBs(functionalCaseBlob);
         mvcResult = this.requestGetWithOkAndReturn(FUNCTIONAL_CASE_DETAIL + "gyq_disassociate_case_4");
         returnData = mvcResult.getResponse().getContentAsString(StandardCharsets.UTF_8);
         resultHolder = JSON.parseObject(returnData, ResultHolder.class);