@@ -0,0 +1,869 @@
+package com.temporaryteam.noticeditor.model;%0A%0Aimport com.carrotsearch.junitbenchmarks.BenchmarkOptions;%0Aimport com.carrotsearch.junitbenchmarks.BenchmarkRule;%0Aimport org.json.JSONException;%0Aimport org.junit.*;%0Aimport org.junit.rules.TestRule;%0A%0Apublic class NoticeTreeItemBenchmarksTest %7B%0A%0A%09@Rule%0A    public TestRule benchmarkRun = new BenchmarkRule();%0A%09%0A%09private static final int NESTING_LEVEL = 6000;%0A%09private static NoticeTreeItem root;%0A%09%0A%09@BeforeClass%0A%09public static void beforeClass() %7B%0A%09%09root = new NoticeTreeItem(%22root%22);%0A%09%09NoticeTreeItem branch = root;%0A%09%09for (int i = 0; i %3C NESTING_LEVEL; i++) %7B%0A%09%09%09NoticeTreeItem node = new NoticeTreeItem(%22branch %22 + i);%0A%09%09%09branch.addChild(node);%0A%09%09%09branch = node;%0A%09%09%7D%0A%09%7D%0A    %0A    @BenchmarkOptions(benchmarkRounds = 1, warmupRounds = 1)%0A    @Test%0A    public void testJsonExport() throws JSONException %7B%0A%09%09root.toJson();%0A%09%7D%0A%7D%0A

Add benchmark test for export item to json