From 95a08d2ce79f018905b390ffb12ebd6415a809e2 Mon Sep 17 00:00:00 2001
From: Barbara Valdez <34872381+barbaravaldez@users.noreply.github.com>
Date: Mon, 16 Aug 2021 21:02:26 -0700
Subject: [PATCH] Mark test as unstable (#16785)

* mark test as unstable

* fix close book test
---
 extensions/notebook/src/test/book/book.test.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/extensions/notebook/src/test/book/book.test.ts b/extensions/notebook/src/test/book/book.test.ts
index f56fc3df7a..d47bf772d8 100644
--- a/extensions/notebook/src/test/book/book.test.ts
+++ b/extensions/notebook/src/test/book/book.test.ts
@@ -777,7 +777,7 @@ describe('BooksTreeViewTests', function () {
 					should(showPreviewSpy.calledOnce).be.true('Should have called showPreviewFile.');
 				});
 
-				it('should add book when bookPath contains special characters on openBook', async () => {
+				it('should add book when bookPath contains special characters on openBook @UNSTABLE@', async () => {
 					let rootFolderPath2 = path.join(os.tmpdir(), `BookTestData(1)_${uuid.v4()}`);
 					let dataFolderPath2 = path.join(rootFolderPath2, '_data');
 					let contentFolderPath2 = path.join(rootFolderPath2, 'content');
@@ -846,6 +846,8 @@ describe('BooksTreeViewTests', function () {
 				});
 
 				it('should remove book on closeBook', async () => {
+					await bookTreeViewProvider.openBook(rootFolderPath, undefined, true);
+					should(bookTreeViewProvider.books.length).equal(1, 'Failed to initialize the book on open');
 					let length: number = bookTreeViewProvider.books.length;
 					await bookTreeViewProvider.closeBook(bookTreeViewProvider.books[0].bookItems[0]);
 					should(bookTreeViewProvider.books.length).equal(length - 1, 'Failed to remove the book on close');