diff --git a/tests/test_harvester.py b/tests/test_harvester.py
index fa7c3d9..be24d05 100644
--- a/tests/test_harvester.py
+++ b/tests/test_harvester.py
@@ -17,8 +17,7 @@ def start_web_server():
 def test_fetch_list():
     expected = ['127.0.0.1:9000', '127.0.0.1:9001', 'username:pa$$@word@127.0.0.1:9002']
     result = fetch_list('http://localhost:8888/proxies1.txt')
-    for proxy in expected:
-        assert proxy in result
+    assert set(expected).issubset(result)
 
 
 def test_fetch_list_fail():
@@ -30,12 +29,10 @@ def test_fetch_list_fail():
 def test_fetch_list_only_valid():
     expected = ['127.0.0.1:9000', '127.0.0.1:9001', 'username:pa$$@word@127.0.0.1:9002']
     result = fetch_list('http://localhost:8888/proxies1.txt')
-    for proxy in expected:
-        assert proxy in result
+    assert set(expected).issubset(result)
 
 
 def test_fetch_all():
     expected = ['127.0.0.1:9000', '127.0.0.1:9001', 'username:pa$$@word@127.0.0.1:9002', '127.0.0.1:9999']
     result = fetch_all(['http://localhost:8888/proxies1.txt', 'http://localhost:8888/proxies2.txt'])
-    for proxy in expected:
-        assert proxy in result
+    assert set(expected).issubset(result)