From 802e8f8e3259dbfd83d9d101ec297074bb59787e Mon Sep 17 00:00:00 2001
From: Vladimir Volek <vladimir.volek@satoshilabs.com>
Date: Tue, 2 Oct 2018 20:06:59 +0200
Subject: [PATCH] Fixed bug in function, add more tests

---
 .../utils/__tests__/__snapshots__/index.test.js.snap   |  4 ++++
 src/reducers/utils/__tests__/index.test.js             | 10 +++++++++-
 src/reducers/utils/index.js                            |  2 +-
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap b/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap
index f1703259..dc206e2a 100644
--- a/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap
+++ b/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap
@@ -18,6 +18,8 @@ exports[`reducers utils observeChanges shoud be the same - returns false 8`] = `
 
 exports[`reducers utils observeChanges shoud be the same - returns false 9`] = `false`;
 
+exports[`reducers utils observeChanges shoud be the same - returns false 10`] = `false`;
+
 exports[`reducers utils observeChanges shoul NOT be the same - returns true 1`] = `true`;
 
 exports[`reducers utils observeChanges shoul NOT be the same - returns true 2`] = `true`;
@@ -35,3 +37,5 @@ exports[`reducers utils observeChanges shoul NOT be the same - returns true 7`]
 exports[`reducers utils observeChanges shoul NOT be the same - returns true 8`] = `true`;
 
 exports[`reducers utils observeChanges shoul NOT be the same - returns true 9`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 10`] = `true`;
diff --git a/src/reducers/utils/__tests__/index.test.js b/src/reducers/utils/__tests__/index.test.js
index dc937181..d9d2f913 100644
--- a/src/reducers/utils/__tests__/index.test.js
+++ b/src/reducers/utils/__tests__/index.test.js
@@ -16,6 +16,10 @@ describe('reducers utils', () => {
                 pervious: [],
                 current: [],
             },
+            {
+                pervious: [1, 1, 1],
+                current: [1, 1, 1],
+            },
             {
                 pervious: 'a',
                 current: 'a',
@@ -57,9 +61,13 @@ describe('reducers utils', () => {
                 current: {},
             },
             {
-                pervious: [{}],
+                pervious: [{}, {}],
                 current: [],
             },
+            {
+                pervious: [1, 1, 1],
+                current: [1, 1],
+            },
             {
                 pervious: 'a',
                 current: 'b',
diff --git a/src/reducers/utils/index.js b/src/reducers/utils/index.js
index d3a8e740..03662042 100644
--- a/src/reducers/utils/index.js
+++ b/src/reducers/utils/index.js
@@ -122,7 +122,7 @@ export const observeChanges = (prev: ?Object, current: ?Object, filter?: {[k: st
     // 2. one of the objects is null/undefined
     if (!prev || !current) return true;
 
-    const prevType = Object.prototype.toString.call(current);
+    const prevType = Object.prototype.toString.call(prev);
     const currentType = Object.prototype.toString.call(current);
     // 3. one of the objects has different type then other
     if (prevType !== currentType) return true;