diff --git a/platform/platform-tests/testSrc/com/intellij/util/io/PersistentFSTest.java b/platform/platform-tests/testSrc/com/intellij/util/io/PersistentFSTest.java
new file mode 100644
index 000000000000..6692086ca057
--- /dev/null
+++ b/platform/platform-tests/testSrc/com/intellij/util/io/PersistentFSTest.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2000-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.util.io;
+
+import com.intellij.openapi.vfs.LocalFileSystem;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.openapi.vfs.VirtualFileWithId;
+import com.intellij.openapi.vfs.newvfs.persistent.PersistentFS;
+import com.intellij.testFramework.PlatformTestCase;
+
+import java.io.File;
+
+public class PersistentFSTest extends PlatformTestCase {
+  @Override
+  public void setUp() throws Exception {
+    initPlatformLangPrefix();
+    super.setUp();
+  }
+
+  public void testAccessingFileByID() throws Exception {
+    File dir = createTempDirectory();
+    File file = new File(dir, "test.txt");
+    file.createNewFile();
+
+    VirtualFile vFile = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(file);
+    assertNotNull(vFile);
+
+    int id = ((VirtualFileWithId)vFile).getId();
+
+    assertSame(vFile, PersistentFS.getInstance().findFileById(id));
+    vFile.delete(this);
+
+    assertNull(PersistentFS.getInstance().findFileById(id));
+  }
+}