fix(接口自动化): JSON断言特殊符号处理

backend/src/main/java/io/metersphere/api/dto/definition/request/MsScenario.java

@@ -15,7 +15,6 @@ import io.metersphere.api.service.ApiTestEnvironmentService;
 import io.metersphere.base.domain.ApiScenarioWithBLOBs;
 import io.metersphere.base.domain.ApiTestEnvironmentWithBLOBs;
 import io.metersphere.commons.utils.CommonBeanFactory;
-import io.metersphere.commons.utils.ScriptEngineUtils;
 import io.metersphere.commons.utils.SessionUtils;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -167,9 +166,11 @@ public class MsScenario extends MsTestElement {
             headers.stream().filter(KeyValue::isValid).filter(KeyValue::isEnable).forEach(keyValue ->
                     headerManager.add(new Header(keyValue.getName(), keyValue.getValue()))
             );
+            if (headerManager.getHeaders().size() > 0) {
                 tree.add(headerManager);
             }
         }
+    }
 
     private Arguments arguments(ParameterConfig config) {
         Arguments arguments = new Arguments();

backend/src/main/java/io/metersphere/api/dto/definition/request/MsTestElement.java

@@ -178,8 +178,10 @@ public abstract class MsTestElement {
             config.getConfig().get(this.getProjectId()).getCommonConfig().getVariables().stream().filter(KeyValue::isValid).filter(KeyValue::isEnable).forEach(keyValue ->
                     arguments.addArgument(keyValue.getName(), keyValue.getValue(), "=")
             );
+            if (arguments.getArguments().size() > 0) {
                 return arguments;
             }
+        }
         return null;
     }
 

backend/src/main/java/io/metersphere/api/dto/definition/request/assertions/MsAssertions.java

@@ -96,7 +96,7 @@ public class MsAssertions extends MsTestElement {
         assertion.setJsonValidationBool(true);
         assertion.setExpectNull(false);
         assertion.setInvert(false);
-        assertion.setIsRegex(true);
+        assertion.setIsRegex(false);
         return assertion;
     }