Fix nondeterministic deepwordbug test failures in CI

The deepwordbug recipe uses random character perturbations, so the exact
perturbed words vary across environments. Replace hardcoded expected
perturbations with /.*/ wildcards in sample output files. Also update
the txt_logger test to use regex matching (like the attack tests do)
instead of exact diff comparison.

Author: yanjunqiAz

tests/sample_outputs/run_attack_deepwordbug_lstm_mr_2.txt

@@ -32,15 +32,15 @@
 
 lovingly photographed in the manner of a golden book sprung to [[life]] , stuart little 2 [[manages]] [[sweetness]] largely without stickiness .
 
-lovingly photographed in the manner of a golden book sprung to [[ife]] , stuart little 2 [[manager]] [[/.*/]] largely without stickiness .
+lovingly photographed in the manner of a golden book sprung to [[/.*/]] , stuart little 2 [[/.*/]] [[/.*/]] largely without stickiness .
 
 
 --------------------------------------------- Result 2 ---------------------------------------------
 [[Positive (99%)]] --> [[Negative (82%)]]
 
 [[consistently]] [[clever]] and [[suspenseful]] .
 
-[[conisstently]] [[celver]] and [[Huspenseful]] .
+[[/.*/]] [[/.*/]] and [[/.*/]] .
 
 
 

tests/sample_outputs/txt_attack_log.txt

@@ -3,13 +3,13 @@
 
 lovingly photographed in the manner of a golden book sprung to [[life]] , stuart little 2 [[manages]] [[sweetness]] largely without stickiness .
 
-lovingly photographed in the manner of a golden book sprung to [[ife]] , stuart little 2 [[manager]] [[seetness]] largely without stickiness .
+lovingly photographed in the manner of a golden book sprung to [[/.*/]] , stuart little 2 [[/.*/]] [[/.*/]] largely without stickiness .
 --------------------------------------------- Result 2 ---------------------------------------------
 [[Positive (99%)]] --> [[Negative (82%)]]
 
 [[consistently]] [[clever]] and [[suspenseful]] .
 
-[[conisstently]] [[celver]] and [[Huspenseful]] .
+[[/.*/]] [[/.*/]] and [[/.*/]] .
 Number of successful attacks: 2
 Number of failed attacks: 0
 Number of skipped attacks: 0

tests/test_command_line/test_loggers.py

@@ -1,5 +1,6 @@
 import json
 import os
+import re
 
 from helpers import run_command_and_get_result
 import pytest
@@ -65,8 +66,18 @@ def test_logger(name, filetype, command, test_log_file, sample_log_file):
         ), f"{filetype} file {test_log_file} differs from {sample_log_file}"
 
     elif filetype == "txt":
-        assert (
-            os.system(f"diff {test_log_file} {sample_log_file}") == 0
+        with open(sample_log_file) as f:
+            desired_output = f.read().strip()
+        with open(test_log_file) as f:
+            test_output = f.read().strip()
+        desired_re = (
+            re.escape(desired_output)
+            .replace("/\\.\\/", ".")
+            .replace("/\\.\\*/", ".*")
+            .replace("\\/\\.\\*\\/", ".*")
+        )
+        assert re.match(
+            desired_re, test_output, flags=re.S
         ), f"{filetype} file {test_log_file} differs from {sample_log_file}"
 
     elif filetype == "csv":