diff --git a/test/test_utils.py b/test/test_utils.py
index 82d3268b12994fed46ee599a8c1b93a6555b97a1..b8b82139e8fd78cf8527bcd872d002fc075a9c35 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -1,10 +1,12 @@
 from unittest import TestCase
 import unittest.mock as mock
-from src.utils import digits_in_string, make_directory, read_json
+from src.utils import digits_in_string, make_directory, read_json, drop_file_extension, make_sorted_sample, \
+    sample_from_video_with_gt
 import random
 import os.path as osp
 import os
 import json
+import numpy as np
 
 
 class TestUtils(TestCase):
@@ -48,3 +50,27 @@ class TestUtils(TestCase):
             read_json('null')
         self.assertEqual(
             'null does not exist.', str(context.exception))
+
+    def test_drop_file_extension(self):
+        file = 'test.mat'
+        self.assertEqual('test', drop_file_extension(file))
+        self.assertEqual('', drop_file_extension(''))
+        with self.assertRaises(ValueError):
+            drop_file_extension(None)
+
+    def test_make_sorted_sample(self):
+        arr = np.arange(4)
+        n_samples = 2
+        sample = make_sorted_sample(arr, n_samples)
+        self.assertTrue(len(sample), n_samples)
+        self.assertTrue(sample[1] > sample[0])
+
+    def test_sample_from_video_with_gt(self):
+        fps = 30
+        duration = 20
+        n_frames=int(fps*duration)
+        user_scores = np.random.randint(low=0, high=2, size=n_frames)
+        user_scores=np.expand_dims(user_scores, axis=1)
+        video_frames = list(np.random.randn(n_frames))
+        sampled_frames, sampled_gt = sample_from_video_with_gt(video_frames, user_scores, duration, fps, n_samples=2)
+        self.assertEquals(len(sampled_frames), len(sampled_gt))
\ No newline at end of file