Update test.py

test.py

@@ -40,7 +40,7 @@ def test_peleng():
         lines.append(line)
     f.close()
     true_lines = ['0.1; Missle #2; D = 840.4222844724743; Az = 0.6240826351476189\n']
-    self.assertTrue(lines == true_lines)
+    assert lines == true_lines
 
 
 test_taircraft()