Add @WithMockUser in concrete execution and code generation

Author: IlyaMuravjov

gradle.properties

@@ -99,6 +99,7 @@ jakartaVersion=3.1.0
 # use latest Java 8 compaitable Spring and Spring Boot versions
 springVersion=5.3.28
 springBootVersion=2.7.13
+springSecurityVersion=5.8.5
 
 # configuration for build server
 #

utbot-framework-api/src/main/kotlin/org/utbot/framework/plugin/api/util/SpringModelUtils.kt

@@ -24,6 +24,7 @@ object SpringModelUtils {
     val transactionalClassId = ClassId("org.springframework.transaction.annotation.Transactional")
     val autoConfigureTestDbClassId = ClassId("org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase")
     val autoConfigureMockMvcClassId = ClassId("org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc")
+    val withMockUserClassId = ClassId("org.springframework.security.test.context.support.WithMockUser")
 
     val runWithClassId = ClassId("org.junit.runner.RunWith")
     val springRunnerClassId = ClassId("org.springframework.test.context.junit4.SpringRunner")

utbot-spring-commons/build.gradle.kts

@@ -1,6 +1,7 @@
 import com.github.jengelman.gradle.plugins.shadow.transformers.Log4j2PluginsCacheFileTransformer
 
 val springVersion: String by rootProject
+val springSecurityVersion: String by rootProject
 val springBootVersion: String by rootProject
 val javaxVersion: String by rootProject
 val jakartaVersion: String by rootProject
@@ -26,6 +27,7 @@ dependencies {
     compileOnly("org.springframework:spring-test:$springVersion")
     compileOnly("org.springframework:spring-tx:$springVersion")
     compileOnly("org.springframework:spring-web:$springVersion")
+    compileOnly("org.springframework.security:spring-security-test:$springSecurityVersion")
     compileOnly("org.springframework.data:spring-data-commons:$springBootVersion")
 
     compileOnly("javax.persistence:javax.persistence-api:$javaxVersion")

utbot-spring-commons/src/main/kotlin/org/utbot/spring/dummy/DummySpringIntegrationTestClass.kt

@@ -1,5 +1,6 @@
 package org.utbot.spring.dummy
 
+import org.springframework.security.test.context.support.WithMockUser
 import org.springframework.test.context.ActiveProfiles
 import org.springframework.test.context.ContextConfiguration
 import org.springframework.transaction.annotation.Isolation
@@ -8,6 +9,7 @@ import org.springframework.transaction.annotation.Transactional
 @ActiveProfiles(/* fills dynamically */)
 @ContextConfiguration(/* fills dynamically */)
 @Transactional(isolation = Isolation.SERIALIZABLE)
+@WithMockUser
 abstract class DummySpringIntegrationTestClass {
     @javax.persistence.PersistenceContext
     @jakarta.persistence.PersistenceContext