upload fix

intellij-plugin/hs-core/src/org/hyperskill/academy/learning/handlers/handlersUtils.kt

@@ -18,7 +18,7 @@ private fun isRefactoringForbidden(project: Project?, element: PsiElement?): Boo
     is PsiFile -> {
       // TODO: allow changing user created non-task files EDU-2556
       val taskFile = element.originalFile.virtualFile.getTaskFile(project)
-      taskFile == null
+      taskFile != null
     }
 
     is PsiDirectory -> {

intellij-plugin/hs-core/testSrc/org/hyperskill/academy/learning/handlers/HandlersUtilsTest.kt

@@ -0,0 +1,48 @@
+package org.hyperskill.academy.learning.handlers
+
+import com.intellij.psi.PsiManager
+import org.hyperskill.academy.learning.EduTestCase
+import org.junit.Test
+
+class HandlersUtilsTest : EduTestCase() {
+
+  @Test
+  fun `test rename is forbidden for task file`() {
+    courseWithFiles {
+      lesson {
+        eduTask {
+          taskFile("Task.kt")
+        }
+      }
+    }
+    // Используем прямой доступ через findFile вместо findFileInTask
+    val taskFile = findFile("lesson1/task1/Task.kt")
+    val psiFile = PsiManager.getInstance(project).findFile(taskFile)!!
+
+    assertTrue("Renaming a task file should be forbidden", isRenameForbidden(project, psiFile))
+  }
+
+  @Test
+  fun `test rename is not forbidden for non-task file`() {
+    courseWithFiles {
+      lesson {
+        eduTask {
+          taskFile("Task.kt")
+        }
+      }
+    }
+    val nonTaskFile = myFixture.addFileToProject("lesson1/task1/non-task-file.kt", "").virtualFile
+    val psiFile = PsiManager.getInstance(project).findFile(nonTaskFile)!!
+
+    assertFalse("Renaming a non-task file should be allowed", isRenameForbidden(project, psiFile))
+  }
+
+  @Test
+  fun `test rename is not forbidden outside of course project`() {
+    // No course set in project
+    val file = myFixture.addFileToProject("some/file.kt", "").virtualFile
+    val psiFile = PsiManager.getInstance(project).findFile(file)!!
+
+    assertFalse("Renaming a file outside a course project should be allowed", isRenameForbidden(project, psiFile))
+  }
+}