text: require('app-module-path').addPath(__dirname);
  
  const { time } = require('lib/time-utils.js');
  const { asyncTest, fileContentEqual, setupDatabase, setupDatabaseAndSynchronizer, db, synchronizer, fileApi, sleep, clearDatabase, switchClient, syncTargetId, objectsEqual, checkThrowAsync } = require('test-utils.js');
  const Folder = require('lib/models/Folder.js');
  const Note = require('lib/models/Note.js');
  const BaseModel = require('lib/BaseModel.js');
  const { shim } = require('lib/shim');
  
  process.on('unhandledRejection', (reason, p) => {
  	console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
  });
  
  async function allItems() {
  	let folders = await Folder.all();
  	let notes = await Note.all();
  	return folders.concat(notes);
  }
  
  describe('models_Folder', function() {
  
  	beforeEach(async (done) => {
  		await setupDatabaseAndSynchronizer(1);
  		await switchClient(1);
  		done();
  	});
  
  	it('should tell if a notebook can be nested under another one', asyncTest(async () => {
  		let f1 = await Folder.save({ title: "folder1" });
  		let f2 = await Folder.save({ title: "folder2", parent_id: f1.id });
  		let f3 = await Folder.save({ title: "folder3", parent_id: f2.id });
  		let f4 = await Folder.save({ title: "folder4" });
  
  		expect(await Folder.canNestUnder(f1.id, f2.id)).toBe(false);
  		expect(await Folder.canNestUnder(f2.id, f2.id)).toBe(false);
  		expect(await Folder.canNestUnder(f3.id, f1.id)).toBe(true);
  		expect(await Folder.canNestUnder(f4.id, f1.id)).toBe(true);
  		expect(await Folder.canNestUnder(f2.id, f3.id)).toBe(false);
  		expect(await Folder.canNestUnder(f3.id, f2.id)).toBe(true);
  		expect(await Folder.canNestUnder(f1.id, '')).toBe(true);
  		expect(await Folder.canNestUnder(f2.id, '')).toBe(true);
  	}));
  
  	it('should recursively delete notes and sub-notebooks', asyncTest(async () => {
  		let f1 = await Folder.save({ title: "folder1" });
  		let f2 = await Folder.save({ title: "folder2", parent_id: f1.id });
  		let n1 = await Note.save({ title: 'note1', parent_id: f2.id });
  
  		await Folder.delete(f1.id);
  
  		const all = await allItems();
  		expect(all.length).toBe(0);
  	}));
  
  	it('should sort by last modified, based on content', asyncTest(async () => {
  		let folders;
  
  		let f1 = await Folder.save({ title: "folder1" }); await sleep(0.1);
  		let f2 = await Folder.save({ title: "folder2" }); await sleep(0.1);
  		let f3 = await Folder.save({ title: "folder3" }); await sleep(0.1);
  		let n1 = await Note.save({ title: 'note1', parent_id: f2.id });
  
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  		expect(folders.length).toBe(3);
  		expect(folders[0].id).toBe(f2.id);
  		expect(folders[1].id).toBe(f3.id);
  		expect(folders[2].id).toBe(f1.id);
  
  		let n2 = await Note.save({ title: 'note1', parent_id: f1.id });
  
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  		expect(folders[0].id).toBe(f1.id);
  		expect(folders[1].id).toBe(f2.id);
  		expect(folders[2].id).toBe(f3.id);
  
  		await Note.save({ id: n1.id, title: 'note1 mod' });
  
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  		expect(folders[0].id).toBe(f2.id);
  		expect(folders[1].id).toBe(f1.id);
  		expect(folders[2].id).toBe(f3.id);
  
  		folders = await Folder.orderByLastModified(await Folder.all(), 'asc');
  		expect(folders[0].id).toBe(f3.id);
  		expect(folders[1].id).toBe(f1.id);
  		expect(folders[2].id).toBe(f2.id);
  	}));
  
  	it('should sort by last modified, based on content (sub-folders too)', asyncTest(async () => {
  		let folders;
  
  		let f1 = await Folder.save({ title: "folder1" }); await sleep(0.1);
  		let f2 = await Folder.save({ title: "folder2" }); await sleep(0.1);
  		let f3 = await Folder.save({ title: "folder3", parent_id: f1.id }); await sleep(0.1);
  		let n1 = await Note.save({ title: 'note1', parent_id: f3.id });
  
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  		expect(folders.length).toBe(3);
  		expect(folders[0].id).toBe(f1.id);
  		expect(folders[1].id).toBe(f3.id);
  		expect(folders[2].id).toBe(f2.id);
  
  		let n2 = await Note.save({ title: 'note2', parent_id: f2.id });
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  
  		expect(folders[0].id).toBe(f2.id);
  		expect(folders[1].id).toBe(f1.id);
  		expect(folders[2].id).toBe(f3.id);
  
  		await Note.save({ id: n1.id, title: 'note1 MOD' });
  		
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  		expect(folders[0].id).toBe(f1.id);
  		expect(folders[1].id).toBe(f3.id);
  		expect(folders[2].id).toBe(f2.id);
  
  		let f4 = await Folder.save({ title: "folder4", parent_id: f1.id }); await sleep(0.1);
  		let n3 = await Note.save({ title: 'note3', parent_id: f4.id });
  
  		folders = await Folder.orderByLastModified(await Folder.all(), 'desc');
  		expect(folders.length).toBe(4);
  		expect(folders[0].id).toBe(f1.id);
  		expect(folders[1].id).toBe(f4.id);
  		expect(folders[2].id).toBe(f3.id);
  		expect(folders[3].id).toBe(f2.id);
  	}));
  
  });