Fixed bug in function, add more tests

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`;

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',

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;