From ba6ed7f9ff2a1d1e0608f752a901382156478901 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Mierzwa?= <l.mierzwa@gmail.com>
Date: Sun, 2 Sep 2018 16:50:50 +0100
Subject: [PATCH] fix(tests): add test coverage for missed branches in
 AlertGrid

---
 ui/src/Components/Grid/AlertGrid/index.test.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/ui/src/Components/Grid/AlertGrid/index.test.js b/ui/src/Components/Grid/AlertGrid/index.test.js
index 4f3f7f3e6..8e7e5dd6e 100644
--- a/ui/src/Components/Grid/AlertGrid/index.test.js
+++ b/ui/src/Components/Grid/AlertGrid/index.test.js
@@ -89,6 +89,15 @@ describe("<AlertGrid />", () => {
     expect(instance.masonryComponentReference.ref.forcePack).toHaveBeenCalled();
   });
 
+  it("masonryRepack() doesn't crash when masonryComponentReference.ref=false`", () => {
+    const tree = ShallowAlertGrid();
+    const instance = tree.instance();
+    const repackSpy = jest.spyOn(instance, "masonryRepack");
+    instance.masonryComponentReference.ref = false;
+    instance.componentDidUpdate();
+    expect(repackSpy).toHaveBeenCalled();
+  });
+
   it("calling storeMasonryRef() saves the ref in local store", () => {
     const tree = ShallowAlertGrid();
     const instance = tree.instance();