diff --git a/test/unit/api/search.spec.js b/test/unit/api/search.spec.js
index 43cc61cb9..602d565d5 100644
--- a/test/unit/api/search.spec.js
+++ b/test/unit/api/search.spec.js
@@ -1,4 +1,3 @@
-import assert from 'assert';
 import Search from '../../../src/lib/search';
 import Config from '../../../src/lib/config';
 import Storage from '../../../src/lib/storage';
@@ -45,7 +44,7 @@ describe('search', () => {
 
 	test('search query item', () => {
 		let result = Search.query('t');
-		assert(result.length === 3);
+		expect(result).toHaveLength(3);
 	});
 
 	test('search remove item', () => {
@@ -58,9 +57,9 @@ describe('search', () => {
 		};
 		Search.add(item);
 		let result = Search.query('test6');
-		assert(result.length === 1);
-		Search.remove(item.name);
+    expect(result).toHaveLength(1);
+    Search.remove(item.name);
 		result = Search.query('test6');
-		assert(result.length === 0);
-	});
+    expect(result).toHaveLength(0);
+  });
 });
diff --git a/test/unit/api/utils.spec.js b/test/unit/api/utils.spec.js
index e049e0427..6e7ccf3fe 100644
--- a/test/unit/api/utils.spec.js
+++ b/test/unit/api/utils.spec.js
@@ -1,5 +1,4 @@
 // @flow
-import assert from 'assert';
 import { generateGravatarUrl, GRAVATAR_DEFAULT } from '../../../src/utils/user';
 import { spliceURL } from '../../../src/utils/string';
 import Package from '../../../src/webui/components/Package/index';
@@ -255,14 +254,14 @@ describe('Utilities', () => {
         expect(function ( ) {
           // $FlowFixMe
           validateMetadata('');
-        }).toThrow(assert.AssertionError);
+        }).toThrow(expect.hasAssertions());
       });
 
       test('should fails the assertions is name does not match', () => {
         expect(function ( ) {
           // $FlowFixMe
           validateMetadata({}, "no-name");
-        }).toThrow(assert.AssertionError);
+        }).toThrow(expect.hasAssertions());
       });
     });
   });