Put information about whether mocks were used into CodeGenerationResult

Author: ArsenHD

utbot-framework/src/main/kotlin/org/utbot/framework/codegen/model/CodeGenerator.kt

@@ -79,7 +79,8 @@ class CodeGenerator(
                 CodeGenerationResult(
                     generatedCode = renderClassFile(testClassFile),
                     utilClassKind = UtilClassKind.fromCgContextOrNull(context),
-                    testsGenerationReport = testClassFile.testsGenerationReport
+                    testsGenerationReport = testClassFile.testsGenerationReport,
+                    mockFrameworkUsed = context.mockFrameworkUsed
                 )
             }
         }
@@ -113,12 +114,14 @@ class CodeGenerator(
  * @property generatedCode the source code of the test class
  * @property utilClassKind the kind of util class if it is required, otherwise - null
  * @property testsGenerationReport some info about test generation process
+ * @property mockFrameworkUsed flag indicating whether any mock objects have been created during code generation ot not
  */
 data class CodeGenerationResult(
     val generatedCode: String,
     // null if no util class needed, e.g. when we are using a library or generating utils directly into test class
     val utilClassKind: UtilClassKind?,
-    val testsGenerationReport: TestsGenerationReport
+    val testsGenerationReport: TestsGenerationReport,
+    val mockFrameworkUsed: Boolean = false
 )
 
 /**
@@ -176,6 +179,7 @@ sealed class UtilClassKind(
          * or they will be generated directly into the test class (in this case provider will be [TestClassUtilMethodProvider])
          */
         internal fun fromCgContextOrNull(context: CgContext): UtilClassKind? {
+            if (context.requiredUtilMethods.isEmpty()) return null
             val provider = context.utilMethodProvider as? UtilClassFileMethodProvider ?: return null
             if (!context.mockFrameworkUsed) {
                 return RegularUtUtils(provider)